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Engels R, Grigoryev K, Kannis CS, Michael Y, Ströher H, Verhoeven V, Büscher M, Huxold L, Kochenda L, Kravtsov P, Trofimov V, Vasilyev A, Vznuzdaev M. Production of HD Molecules in Definite Hyperfine Substates. Phys Rev Lett 2020; 124:113003. [PMID: 32242681 DOI: 10.1103/physrevlett.124.113003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 02/02/2020] [Indexed: 06/11/2023]
Abstract
Polarized atomic beam sources have been in operation for many years to produce either nuclear polarized atomic hydrogen or deuterium beams. In recent experiments, such a source was used to polarize both isotopes independently at the same time. By recombination of the atoms, hydrogen-deuterium molecules with all possible nuclear spin combinations can be created. Those spin isomers are useful for further applications, like precision spectroscopy, as polarized targets for laser-particle acceleration, polarized fuel for fusion reactors, or as an option for future measurements of electric dipole moments.
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Affiliation(s)
- R Engels
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C S Kannis
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Michael
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Verhoeven
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Büscher
- Peter Grünberg Institute, Forschungszentrum Jülich, 52425 Jülich, Germany and Institute for Laser- and Plasma-Physics, Heinrich-Heine Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - L Huxold
- Institute for Laser- and Plasma-Physics, Heinrich-Heine Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - L Kochenda
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - P Kravtsov
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - V Trofimov
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - A Vasilyev
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - M Vznuzdaev
- 'Kurchatov Institute' B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
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Pretz J, Chang SP, Hejny V, Karanth S, Park S, Semertzidis Y, Stephenson E, Ströher H. Statistical sensitivity estimates for oscillating electric dipole moment measurements in storage rings. Eur Phys J C Part Fields 2020; 80:107. [PMID: 32104146 PMCID: PMC7008113 DOI: 10.1140/epjc/s10052-020-7664-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/19/2020] [Indexed: 06/10/2023]
Abstract
In this paper analytical expressions are derived to describe the spin motion of a particle in magnetic and electric fields in the presence of an axion field causing an oscillating electric dipole moment (EDM). These equations are used to estimate statistical sensitivities for axion searches at storage rings. The estimates obtained from the analytic expressions are compared to numerical estimates from simulations in Chang et al. (Phys Rev D 99(8):083002, 2019). A good agreement is found.
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Affiliation(s)
- J. Pretz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME, Forschungszentrum Jülich, RWTH Aachen University, Aachen, Germany
| | - S. P. Chang
- Center for Axion and Precision Physics Research, IBS, Daejeon, 34051 Republic of Korea
- Department of Physics, KAIST, Daejeon, 34141 Republic of Korea
| | - V. Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S. Karanth
- Marian Smoluchowski Institute of Physics, Jagiellionian Univsersity, Cracow, Poland
| | - S. Park
- Center for Axion and Precision Physics Research, IBS, Daejeon, 34051 Republic of Korea
| | - Y. Semertzidis
- Center for Axion and Precision Physics Research, IBS, Daejeon, 34051 Republic of Korea
- Department of Physics, KAIST, Daejeon, 34141 Republic of Korea
| | | | - H. Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA–FAME (Forces and Matter Experiments), Forschungszentrum Jülich, RWTH Aachen University, Aachen, Germany
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3
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Grigoryev K, Rathmann F, Stahl A, Ströher H. Electrostatic deflector studies using small-scale prototype electrodes. Rev Sci Instrum 2019; 90:045124. [PMID: 31043000 DOI: 10.1063/1.5086862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 04/05/2019] [Indexed: 06/09/2023]
Abstract
The search for electric dipole moments of particles in storage rings requires the development of dedicated electrostatic deflector elements. The JEDI prototype-ring design consists of more than 50 electric deflectors of 1 m length with 60 mm spacing between the plates with electric fields of 10 MV m-1. This paper presents studies of scaled-down uncoated prototype electrodes with 10 mm radius made of stainless steel. The electric field at electrode gap distances from 1 mm to 0.05 mm increased from 15 to 90 MV m-1. In future investigations, we will study different materials and coatings at similar electrode spacings. Preparations are also underway to study large deflector elements.
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Affiliation(s)
- K Grigoryev
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Rathmann
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III Physics Institute B, RWTH Aachen University, 52074 Aachen, Germany
| | - H Ströher
- Institute for Nuclear Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
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4
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Adlarson P, Augustyniak W, Bardan W, Bashkanov M, Bergmann FS, Berłowski M, Bondar A, Büscher M, Calén H, Ciepał I, Clement H, Czerwiński E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Heijkenskjöld L, Hejny V, Hüsken N, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khoukaz A, Khreptak O, Kirillov DA, Kistryn S, Kleines H, Kłos B, Krzemień W, Kulessa P, Kupść A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Morsch HP, Moskal P, Ohm H, Parol W, Perez Del Rio E, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Ritman J, Roy A, Rudy Z, Rundel O, Sawant S, Schadmand S, Schätti-Ozerianska I, Sefzick T, Serdyuk V, Shwartz B, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Trzciński A, Wolke M, Wrońska A, Wüstner P, Yamamoto A, Zabierowski J, Zieliński MJ, Złomańczuk J, Żuprański P, Żurek M. Isotensor Dibaryon in the pp→ppπ^{+}π^{-} Reaction? Phys Rev Lett 2018; 121:052001. [PMID: 30118290 DOI: 10.1103/physrevlett.121.052001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/19/2018] [Indexed: 06/08/2023]
Abstract
Exclusive measurements of the quasifree pp→ppπ^{+}π^{-} reaction have been carried out at WASA@COSY by means of pd collisions at T_{p}=1.2 GeV. Total and differential cross sections have been extracted covering the energy region T_{p}=1.08-1.36 GeV, which is the region of N^{*}(1440) and Δ(1232)Δ(1232) resonance excitations. Calculations describing these excitations by t-channel meson exchange are at variance with the measured differential cross sections and underpredict substantially the experimental total cross section. An isotensor ΔN dibaryon resonance with I(J^{P})=2(1^{+}) produced associatedly with a pion is able to overcome these deficiencies.
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Affiliation(s)
- P Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - W Augustyniak
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - W Bardan
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - M Bashkanov
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
| | - F S Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - M Berłowski
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - A Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 Akademika Lavrentieva Prospekt, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Ulitsa, Novosibirsk 630090, Russia
| | - M Büscher
- Peter Grünberg Institut, PGI-6 Elektronische Eigenschaften, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institut für Laser- und Plasmaphysik, Heinrich Heine Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - H Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I Ciepał
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - H Clement
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - E Czerwiński
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - K Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Eyrich
- Physikalisches Institut, Friedrich-Alexander Universität Erlangen-Nürnberg, Erwin-Rommel-Straße 1, 91058 Erlangen, Germany
| | - P Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Theoretical and Experimental Physics, named by A.I. Alikhanov of National Research Centre "Kurchatov Institute," 25 Bolshaya Cheremushkinskaya Ulitsa, Moscow 117218, Russia
| | - K Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - K Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore, Madhya Pradesh 453 552, India
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Division, Petersburg Nuclear Physics Institute, named by B.P. Konstantinov of National Research Centre "Kurchatov Institute," 1 Mikrorajon Orlova Roshcha, Leningradskaya Oblast, Gatchina 188300, Russia
| | - L Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - L Jarczyk
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Kamys
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - G Kemmerling
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - O Khreptak
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - D A Kirillov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - S Kistryn
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Kleines
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kłos
- August Chełkowski Institute of Physics, University of Silesia, Ulica 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - W Krzemień
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - P Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - A Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - K Lalwani
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, Rajasthan 302 017, India
| | - D Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Magiera
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - P Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Mariański
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - H-P Morsch
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Parol
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - E Perez Del Rio
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - N M Piskunov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - K Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
- Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstraße 150, 44780 Bochum, Germany
| | - A Roy
- Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore, Madhya Pradesh 453 552, India
| | - Z Rudy
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - O Rundel
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - S Sawant
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400 076, India
| | - S Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Schätti-Ozerianska
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 Akademika Lavrentieva Prospekt, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Ulitsa, Novosibirsk 630090, Russia
| | - T Skorodko
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Department of Physics, Tomsk State University, 36 Lenin Avenue, Tomsk 634050, Russia
| | - M Skurzok
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Smyrski
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - V Sopov
- Institute for Theoretical and Experimental Physics, named by A.I. Alikhanov of National Research Centre "Kurchatov Institute," 25 Bolshaya Cheremushkinskaya Ulitsa, Moscow 117218, Russia
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Stepaniak
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - E Stephan
- August Chełkowski Institute of Physics, University of Silesia, Ulica 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - G Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - A Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - A Trzciński
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - M Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - A Wrońska
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
| | - J Zabierowski
- Astrophysics Division, National Centre for Nuclear Research, Box 447, 90-950 Łódź, Poland
| | - M J Zieliński
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P Żuprański
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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5
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Adlarson P, Augustyniak W, Bardan W, Bashkanov M, Bass SD, Bergmann FS, Berłowski M, Bondar A, Büscher M, Calén H, Ciepał I, Clement H, Czerwiński E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Gullström CO, Heijkenskjöld L, Hejny V, Hüsken N, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khatri G, Khoukaz A, Khreptak O, Kirillov DA, Kistryn S, Kleines H, Kłos B, Krzemień W, Kulessa P, Kupść A, Kuzmin A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Morsch HP, Moskal P, Ohm H, Parol W, Perez Del Rio E, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Pyszniak A, Ritman J, Roy A, Rudy Z, Rundel O, Sawant S, Schadmand S, Schätti-Ozerianska I, Sefzick T, Serdyuk V, Shwartz B, Sitterberg K, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Trzciński A, Wolke M, Wrońska A, Wüstner P, Yamamoto A, Zabierowski J, Zieliński MJ, Złomańczuk J, Żuprański P, Żurek M. Spin Dependence of η Meson Production in Proton-Proton Collisions Close to Threshold. Phys Rev Lett 2018; 120:022002. [PMID: 29376676 DOI: 10.1103/physrevlett.120.022002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/03/2017] [Indexed: 06/07/2023]
Abstract
Taking advantage of the high acceptance and axial symmetry of the WASA-at-COSY detector, and the high polarization degree of the proton beam of COSY, the reaction p[over →]p→ppη has been measured close to threshold to explore the analyzing power A_{y}. The angular distribution of A_{y} is determined with the precision improved by more than 1 order of magnitude with respect to previous results, allowing a first accurate comparison with theoretical predictions. The determined analyzing power is consistent with zero for an excess energy of Q=15 MeV, signaling s-wave production with no evidence for higher partial waves. At Q=72 MeV the data reveal strong interference of Ps and Pp partial waves and cancellation of (Pp)^{2} and Ss^{*}Sd contributions. These results rule out the presently available theoretical predictions for the production mechanism of the η meson.
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Affiliation(s)
- P Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - W Bardan
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - M Bashkanov
- School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh EH9 3FD, United Kingdom
| | - S D Bass
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - F S Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - M Berłowski
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - A Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - M Büscher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I Ciepał
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - H Clement
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - E Czerwiński
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - K Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Erven
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - W Erven
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - W Eyrich
- Physikalisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
| | - P Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
| | - K Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - K Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Division, Petersburg Nuclear Physics Institute, Orlova Rosha 2, Gatchina, Leningrad district 188300, Russia
| | - C-O Gullström
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - L Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - L Jarczyk
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Kamys
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - G Kemmerling
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - G Khatri
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - A Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - O Khreptak
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - D A Kirillov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - S Kistryn
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Kleines
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - B Kłos
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - W Krzemień
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - A Kuzmin
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - K Lalwani
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg Jaipur 302017, Rajasthan, India
| | - D Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Magiera
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - P Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - H-P Morsch
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Parol
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - E Perez Del Rio
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - N M Piskunov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - K Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Pyszniak
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
- Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - A Roy
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
| | - Z Rudy
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - O Rundel
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - S Sawant
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - S Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Schätti-Ozerianska
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - K Sitterberg
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - T Skorodko
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Department of Physics, Tomsk State University, 36 Lenina Avenue, Tomsk 634050, Russia
| | - M Skurzok
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Smyrski
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - V Sopov
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Stepaniak
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - E Stephan
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - G Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - A Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - M Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - A Wrońska
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Wüstner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - A Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
| | - J Zabierowski
- Department of Astrophysics, National Centre for Nuclear Research, 90-950 Łódź, Poland
| | - M J Zieliński
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P Żuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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Hempelmann N, Hejny V, Pretz J, Stephenson E, Augustyniak W, Bagdasarian Z, Bai M, Barion L, Berz M, Chekmenev S, Ciullo G, Dymov S, Etzkorn FJ, Eversmann D, Gaisser M, Gebel R, Grigoryev K, Grzonka D, Guidoboni G, Hanraths T, Heberling D, Hetzel J, Hinder F, Kacharava A, Kamerdzhiev V, Keshelashvili I, Koop I, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Mchedlishvili D, Mey S, Müller F, Nass A, Nikolaev NN, Pesce A, Prasuhn D, Rathmann F, Rosenthal M, Saleev A, Schmidt V, Semertzidis Y, Shmakova V, Silenko A, Slim J, Soltner H, Stahl A, Stassen R, Stockhorst H, Ströher H, Tabidze M, Tagliente G, Talman R, Thörngren Engblom P, Trinkel F, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wrońska A, Wüstner P, Zuprański P, Żurek M. Phase Locking the Spin Precession in a Storage Ring. Phys Rev Lett 2017; 119:014801. [PMID: 28731757 DOI: 10.1103/physrevlett.119.014801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Indexed: 06/07/2023]
Abstract
This Letter reports the successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97 GeV/c bunched and polarized deuteron beam in the Cooler Synchrotron (COSY) storage ring in order to control both the precession rate (≈121 kHz) and the phase of the horizontal polarization component. Real time synchronization with a radio frequency (rf) solenoid made possible the rotation of the polarization out of the horizontal plane, yielding a demonstration of the feedback method to manipulate the polarization. In particular, the rotation rate shows a sinusoidal function of the horizontal polarization phase (relative to the rf solenoid), which was controlled to within a 1 standard deviation range of σ=0.21 rad. The minimum possible adjustment was 3.7 mHz out of a revolution frequency of 753 kHz, which changes the precession rate by 26 mrad/s. Such a capability meets a requirement for the use of storage rings to look for an intrinsic electric dipole moment of charged particles.
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Affiliation(s)
- N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - L Barion
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - F-J Etzkorn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - M Gaisser
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - T Hanraths
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - D Mchedlishvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - S Mey
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Müller
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
- Moscow Institute for Physics and Technology, 141700 Dolgoprudny, Russia
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Rosenthal
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Saleev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Samara National Research University, 443086 Samara, Russia
| | - V Schmidt
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- Zentralinstitut für Engineering, Elektronik und Analytik (ZEA-1), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | | | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - F Trinkel
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik (ZEA-2), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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7
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Anastassopoulos V, Andrianov S, Baartman R, Baessler S, Bai M, Benante J, Berz M, Blaskiewicz M, Bowcock T, Brown K, Casey B, Conte M, Crnkovic JD, D'Imperio N, Fanourakis G, Fedotov A, Fierlinger P, Fischer W, Gaisser MO, Giomataris Y, Grosse-Perdekamp M, Guidoboni G, Hacıömeroğlu S, Hoffstaetter G, Huang H, Incagli M, Ivanov A, Kawall D, Kim YI, King B, Koop IA, Lazarus DM, Lebedev V, Lee MJ, Lee S, Lee YH, Lehrach A, Lenisa P, Levi Sandri P, Luccio AU, Lyapin A, MacKay W, Maier R, Makino K, Malitsky N, Marciano WJ, Meng W, Meot F, Metodiev EM, Miceli L, Moricciani D, Morse WM, Nagaitsev S, Nayak SK, Orlov YF, Ozben CS, Park ST, Pesce A, Petrakou E, Pile P, Podobedov B, Polychronakos V, Pretz J, Ptitsyn V, Ramberg E, Raparia D, Rathmann F, Rescia S, Roser T, Kamal Sayed H, Semertzidis YK, Senichev Y, Sidorin A, Silenko A, Simos N, Stahl A, Stephenson EJ, Ströher H, Syphers MJ, Talman J, Talman RM, Tishchenko V, Touramanis C, Tsoupas N, Venanzoni G, Vetter K, Vlassis S, Won E, Zavattini G, Zelenski A, Zioutas K. A storage ring experiment to detect a proton electric dipole moment. Rev Sci Instrum 2016; 87:115116. [PMID: 27910557 DOI: 10.1063/1.4967465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
A new experiment is described to detect a permanent electric dipole moment of the proton with a sensitivity of 10-29 e ⋅ cm by using polarized "magic" momentum 0.7 GeV/c protons in an all-electric storage ring. Systematic errors relevant to the experiment are discussed and techniques to address them are presented. The measurement is sensitive to new physics beyond the standard model at the scale of 3000 TeV.
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Affiliation(s)
- V Anastassopoulos
- Department of Physics, University of Patras, 26500 Rio-Patras, Greece
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, Saint-Petersburg State University, Saint-Petersburg, Russia
| | - R Baartman
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - S Baessler
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Bai
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Benante
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - M Blaskiewicz
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T Bowcock
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - K Brown
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - B Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Conte
- Physics Department and INFN Section of Genoa, 16146 Genoa, Italy
| | - J D Crnkovic
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - N D'Imperio
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Fanourakis
- Institute of Nuclear and Particle Physics NCSR Demokritos, GR-15310 Aghia Paraskevi Athens, Greece
| | - A Fedotov
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - P Fierlinger
- Technical University München, Physikdepartment and Excellence-Cluster "Universe," Garching, Germany
| | - W Fischer
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M O Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Y Giomataris
- CEA/Saclay, DAPNIA, 91191 Gif-sur-Yvette Cedex, France
| | - M Grosse-Perdekamp
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - G Guidoboni
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - S Hacıömeroğlu
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - G Hoffstaetter
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York 14853, USA
| | - H Huang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M Incagli
- Physics Department, University and INFN Pisa, Pisa, Italy
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, Saint-Petersburg State University, Saint-Petersburg, Russia
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Y I Kim
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - B King
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - I A Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - D M Lazarus
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - V Lebedev
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M J Lee
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - S Lee
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Y H Lee
- Korea Research Institute of Standards and Science, Daejeon 34141, South Korea
| | - A Lehrach
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Lenisa
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - P Levi Sandri
- Laboratori Nazionali di Frascati, INFN, I-00044 Frascati, Rome, Italy
| | - A U Luccio
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Lyapin
- Royal Holloway, University of London, Egham, Surrey, United Kingdom
| | - W MacKay
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R Maier
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - N Malitsky
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - W J Marciano
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - W Meng
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Meot
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E M Metodiev
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - L Miceli
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - D Moricciani
- Dipartimento di Fisica dell'Univ. di Roma "Tor Vergata" and INFN Sezione di Roma Tor Vergata, Rome, Italy
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - S Nagaitsev
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S K Nayak
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y F Orlov
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York 14853, USA
| | - C S Ozben
- Istanbul Technical University, Istanbul 34469, Turkey
| | - S T Park
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - A Pesce
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - E Petrakou
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - P Pile
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - B Podobedov
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | | | - J Pretz
- RWTH Aachen University and JARA-Fame, III. Physikalisches Institut B, Physikzentrum, 52056 Aachen, Germany
| | - V Ptitsyn
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Raparia
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Rathmann
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Rescia
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T Roser
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - H Kamal Sayed
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y K Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Y Senichev
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Sidorin
- Joint Institute for Nuclear Research, Dubna, Moscow region, Russia
| | - A Silenko
- Joint Institute for Nuclear Research, Dubna, Moscow region, Russia
| | - N Simos
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Stahl
- RWTH Aachen University and JARA-Fame, III. Physikalisches Institut B, Physikzentrum, 52056 Aachen, Germany
| | - E J Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - H Ströher
- Institut für Kernphysik and JARA-Fame, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M J Syphers
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Talman
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R M Talman
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York 14853, USA
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Touramanis
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - N Tsoupas
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Venanzoni
- Laboratori Nazionali di Frascati, INFN, I-00044 Frascati, Rome, Italy
| | - K Vetter
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - S Vlassis
- Department of Physics, University of Patras, 26500 Rio-Patras, Greece
| | - E Won
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - G Zavattini
- University of Ferrara, INFN of Ferrara, Ferrara, Italy
| | - A Zelenski
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - K Zioutas
- Department of Physics, University of Patras, 26500 Rio-Patras, Greece
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8
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Guidoboni G, Stephenson E, Andrianov S, Augustyniak W, Bagdasarian Z, Bai M, Baylac M, Bernreuther W, Bertelli S, Berz M, Böker J, Böhme C, Bsaisou J, Chekmenev S, Chiladze D, Ciullo G, Contalbrigo M, de Conto JM, Dymov S, Engels R, Esser FM, Eversmann D, Felden O, Gaisser M, Gebel R, Glückler H, Goldenbaum F, Grigoryev K, Grzonka D, Hahnraths T, Heberling D, Hejny V, Hempelmann N, Hetzel J, Hinder F, Hipple R, Hölscher D, Ivanov A, Kacharava A, Kamerdzhiev V, Kamys B, Keshelashvili I, Khoukaz A, Koop I, Krause HJ, Krewald S, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Maier R, Makino K, Mariański B, Mchedlishvili D, Meißner UG, Mey S, Morse W, Müller F, Nass A, Natour G, Nikolaev N, Nioradze M, Nowakowski K, Orlov Y, Pesce A, Prasuhn D, Pretz J, Rathmann F, Ritman J, Rosenthal M, Rudy Z, Saleev A, Sefzick T, Semertzidis Y, Senichev Y, Shmakova V, Silenko A, Simon M, Slim J, Soltner H, Stahl A, Stassen R, Statera M, Stockhorst H, Straatmann H, Ströher H, Tabidze M, Talman R, Thörngren Engblom P, Trinkel F, Trzciński A, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wilkin C, Wrońska A, Wüstner P, Zakrzewska M, Zuprański P, Zyuzin D. How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97-GeV/c Deuterons in a Storage Ring. Phys Rev Lett 2016; 117:054801. [PMID: 27517774 DOI: 10.1103/physrevlett.117.054801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Indexed: 06/06/2023]
Abstract
We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of a magnetic storage ring (COSY). This long spin coherence time is maintained through a combination of beam bunching, electron cooling, sextupole field corrections, and the suppression of collective effects through beam current limits. This record lifetime is required for a storage ring search for an intrinsic electric dipole moment on the deuteron at a statistical sensitivity level approaching 10^{-29} e cm.
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Affiliation(s)
- G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Baylac
- LPSC Université Grenoble-Alpes, CNRS/IN2P3, 38000 Grenoble, Cedex, France
| | - W Bernreuther
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - S Bertelli
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Böker
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C Böhme
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Bsaisou
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Chiladze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Contalbrigo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - J-M de Conto
- LPSC Université Grenoble-Alpes, CNRS/IN2P3, 38000 Grenoble, Cedex, France
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F M Esser
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - O Felden
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Glückler
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - T Hahnraths
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - R Hipple
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Hölscher
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - H-J Krause
- Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Krewald
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Mchedlishvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Ulf-G Meißner
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Bethe Center for Theoretical Physics, Universität Bonn, 53115 Bonn, Germany
| | - S Mey
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - W Morse
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Müller
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Natour
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - M Nioradze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - K Nowakowski
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - Y Orlov
- Cornell University, Ithaca, New York 14850, USA
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Rosenthal
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - Z Rudy
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Saleev
- Samara State Aerospace University, Samara 443086, Russia
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
- Department of Physics, KAIST, Daejeon 305-701, Republic of Korea
| | - Y Senichev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - M Simon
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Statera
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Straatmann
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- University of Ferrara and INFN, 44100 Ferrara, Italy
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - F Trinkel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C Wilkin
- Physics and Astronomy Department, UCL, London WC1E 6BT, United Kingdom
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Zakrzewska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Zyuzin
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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9
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Engels R, Gaißer M, Gorski R, Grigoryev K, Mikirtychyants M, Nass A, Rathmann F, Seyfarth H, Ströher H, Weiss P, Kochenda L, Kravtsov P, Trofimov V, Tschernov N, Vasilyev A, Vznuzdaev M, Schieck HPG. Production of hyperpolarized H_{2} molecules from H[over →] atoms in gas-storage cells. Phys Rev Lett 2015; 115:113007. [PMID: 26406831 DOI: 10.1103/physrevlett.115.113007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 06/05/2023]
Abstract
The preservation of the nuclear polarization of hydrogen atoms during the recombination to molecules was observed on different surface materials in the temperature range from 45 to 100 K and for magnetic fields up to 1 T. On a gold and a fused quartz surface, the expected molecular polarization of about 50% or lower of the atomic polarization was measured, while a surface layer of perfluoropolyether (Fomblin) shows a nearly complete preservation (at least 97%) of the atomic polarization during the recombination process. Further experiments have the possibility of storing polarized deuterium molecules and to use them in nuclear-fusion installations. Another application might be the production of polarized substances for enhanced NMR techniques.
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Affiliation(s)
- R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - M Gaißer
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - R Gorski
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - M Mikirtychyants
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - H Seyfarth
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - P Weiss
- Institut für Kernphysik, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - L Kochenda
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - P Kravtsov
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - V Trofimov
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - N Tschernov
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - A Vasilyev
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
| | - M Vznuzdaev
- Laboratory of Cryogenic and Superconductive Techniques, National Research Centre "Kurchatov Institute" B. P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 Gatchina, Russia
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10
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Eversmann D, Hejny V, Hinder F, Kacharava A, Pretz J, Rathmann F, Rosenthal M, Trinkel F, Andrianov S, Augustyniak W, Bagdasarian Z, Bai M, Bernreuther W, Bertelli S, Berz M, Bsaisou J, Chekmenev S, Chiladze D, Ciullo G, Contalbrigo M, de Vries J, Dymov S, Engels R, Esser FM, Felden O, Gaisser M, Gebel R, Glückler H, Goldenbaum F, Grigoryev K, Grzonka D, Guidoboni G, Hanhart C, Heberling D, Hempelmann N, Hetzel J, Hipple R, Hölscher D, Ivanov A, Kamerdzhiev V, Kamys B, Keshelashvili I, Khoukaz A, Koop I, Krause HJ, Krewald S, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Maier R, Makino K, Mariański B, Mchedlishvili D, Meißner UG, Mey S, Nass A, Natour G, Nikolaev N, Nioradze M, Nogga A, Nowakowski K, Pesce A, Prasuhn D, Ritman J, Rudy Z, Saleev A, Semertzidis Y, Senichev Y, Shmakova V, Silenko A, Slim J, Soltner H, Stahl A, Stassen R, Statera M, Stephenson E, Stockhorst H, Straatmann H, Ströher H, Tabidze M, Talman R, Thörngren Engblom P, Trzciński A, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wilkin C, Wirzba A, Wrońska A, Wüstner P, Zakrzewska M, Zuprański P, Zyuzin D. New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments. Phys Rev Lett 2015; 115:094801. [PMID: 26371657 DOI: 10.1103/physrevlett.115.094801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Indexed: 06/05/2023]
Abstract
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, the spin tune-defined as the number of spin precessions per turn-is given by ν(s)=γG (γ is the Lorentz factor, G the gyromagnetic anomaly). At 970 MeV/c, the deuteron spins coherently precess at a frequency of ≈120 kHz in the Cooler Synchrotron COSY. The spin tune is deduced from the up-down asymmetry of deuteron-carbon scattering. In a time interval of 2.6 s, the spin tune was determined with a precision of the order 10^{-8}, and to 1×10^{-10} for a continuous 100 s accelerator cycle. This renders the presented method a new precision tool for accelerator physics; controlling the spin motion of particles to high precision is mandatory, in particular, for the measurement of electric dipole moments of charged particles in a storage ring.
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Affiliation(s)
- D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Rosenthal
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Trinkel
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - W Bernreuther
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - S Bertelli
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Bsaisou
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Chiladze
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Contalbrigo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - J de Vries
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F M Esser
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - O Felden
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Glückler
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - C Hanhart
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - R Hipple
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Hölscher
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - H-J Krause
- Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Krewald
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Mchedlishvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - Ulf-G Meißner
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
| | - S Mey
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Natour
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
| | - M Nioradze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - A Nogga
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Nowakowski
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - Z Rudy
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Saleev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Y Senichev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Statera
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Straatmann
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- University of Ferrara and INFN, 44100 Ferrara, Italy
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - C Wilkin
- Physics and Astronomy Department, UCL, London, WC1E 6BT, United Kingdom
| | - A Wirzba
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Zakrzewska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Zyuzin
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
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11
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Goslawski P, Khoukaz A, Barsov S, Burmeister I, Chiladze D, Dymov S, Gebel R, Hartmann M, Kacharava A, Kulessa P, Lehrach A, Lorentz B, Maier R, Mersmann T, Mielke M, Mikirtychiants S, Ohm H, Papenbrock M, Prasuhn D, Rausmann T, Serdyuk V, Stockhorst H, Ströher H, Täschner A, Valdau Y, Wilkin C. New determination of the mass of theηmeson at COSY-ANKE. Int J Clin Exp Med 2012. [DOI: 10.1103/physrevd.85.112011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Adlarson P, Adolph C, Augustyniak W, Baru V, Bashkanov M, Bednarski T, Bergmann FS, Berłowski M, Bhatt H, Brinkmann KT, Büscher M, Calén H, Clement H, Coderre D, Czerwiński E, Doroshkevich E, Ekström C, Engels R, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goslawski P, Grigoryev K, Grishina V, Gullström CO, Hampe J, Hanhart C, Heijkenskjöld L, Hejny V, Hinterberger F, Hodana M, Höistad B, Jacewicz M, Janusz M, Jany A, Jany BR, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khakimova O, Khoukaz A, Kistryn S, Klaja J, Kleines H, Kłos B, Kren F, Krzemień W, Kulessa P, Kullander S, Kupść A, Lalwani K, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Mikirtychiants M, Moskal P, Morsch HP, Nandi BK, Niedźwiecki S, Ohm H, Passfeld A, Pauly C, del Rio EP, Petukhov Y, Piskunov N, Pluciński P, Podkopał P, Povtoreyko A, Prasuhn D, Pricking A, Pysz K, Rausmann T, Redmer CF, Ritman J, Roy A, Ruber RJMY, Rudy Z, Sawant S, Schadmand S, Schmidt A, Schroeder W, Sefzick T, Serdyuk V, Shah N, Siemaszko M, Siudak R, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Täschner A, Tolba T, Trzciński A, Varma R, Vlasov P, Wagner GJ, Węglorz W, Winnemöller A, Wirzba A, Wolke M, Wrońska A, Wüstner P, Wurm P, Yuan X, Yurev L, Zabierowski J, Zheng C, Zieliński MJ, Zipper W, Złomańczuk J, Zuprański P. Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance? Phys Rev Lett 2011; 106:242302. [PMID: 21770567 DOI: 10.1103/physrevlett.106.242302] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Indexed: 05/31/2023]
Abstract
We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over the full energy region of the ABC effect, a pronounced low-mass enhancement in the ππ-invariant mass spectrum. The measurements, which cover also the transition region to the conventional t-channel ΔΔ process, were performed with the upgraded WASA detector setup at COSY. The data reveal the Abashian-Booth-Crowe effect to be uniquely correlated with a Lorentzian energy dependence in the integral cross section. The observables are consistent with a narrow resonance with m=2.37 GeV, Γ≈70 MeV and I(J(P))=0(3(+)) in both pn and ΔΔ systems. Necessary further tests of the resonance interpretation are discussed.
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Affiliation(s)
- P Adlarson
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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13
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Seyfarth H, Engels R, Rathmann F, Ströher H, Baryshevsky V, Rouba A, Düweke C, Emmerich R, Imig A, Grigoryev K, Mikirtychiants M, Vasilyev A. Production of a beam of tensor-polarized deuterons using a carbon target. Phys Rev Lett 2010; 104:222501. [PMID: 20867161 DOI: 10.1103/physrevlett.104.222501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Indexed: 05/29/2023]
Abstract
An initially unpolarized beam of deuterons is found to acquire tensor polarization after traversing a foil of spin-zero target nuclei. The effect, called nuclear spin dichroism, has been predicted theoretically, albeit resulting in small values of p(zz) of the order of 0.01 for energies around 10 MeV. The experiment was carried out at the Köln tandem accelerator using carbon targets bombarded by deuterons. The observed polarization is as large as p(zz)=-0.28±0.03 for a beam of 14.8 MeV and a 129 mg/cm2 target. The results allow one to produce tensor-polarized deuterons with p(zz) around -0.30 (or +0.25) from an initially unpolarized beam using a carbon target of appropriate thickness.
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Affiliation(s)
- H Seyfarth
- Institut für Kernphysik, Jülich Center for Hadron Physics, Forschungszentrum Jülich, Leo-Brandt-Straße 1, D-52425 Jülich, Germany.
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14
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Kacharava A, Chiladze D, Chiladze B, Keshelashvili I, Lomidze N, Macharashvili G, Mchedlishvili D, Nioradze M, Rathmann F, Ströher H, Wilkin C. Neutron–Proton Scattering Experiments at ANKE–COSY. EPJ Web of Conferences 2010. [DOI: 10.1051/epjconf/20100305004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Dymov S, Hartmann M, Kacharava A, Khoukaz A, Komarov V, Kulessa P, Kulikov A, Kurbatov V, Macharashvili G, Merzliakov S, Mielke M, Mikirtychiants S, Nekipelov M, Nioradze M, Ohm H, Rathmann F, Ströher H, Tsirkov D, Uzikov Y, Valdau Y, Wilkin C, Yaschenko S, Zalikhanov B. Observation of an "ABC" Effect in proton-proton collisions. Phys Rev Lett 2009; 102:192301. [PMID: 19518946 DOI: 10.1103/physrevlett.102.192301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Indexed: 05/27/2023]
Abstract
The cross section for inclusive multipion production in the pp-->ppX reaction was measured at COSY-ANKE at four beam energies, 0.8, 1.1, 1.4, and 2.0 GeV, for low excitation energy in the final pp system, such that the diproton quasiparticle is in the 1S0 state. At the three higher energies, the missing-mass M_{X} spectra show a strong enhancement at low M_{X}, corresponding to an Abashian-Booth-Crowe effect that moves steadily to larger values as the energy is increased. Despite the missing-mass structure looking very different at 0.8 GeV, the variation with M_{X} and beam energy are consistent with two-pion production being mediated through the excitation of two Delta(1232) isobars, coupled to S and D states of the initial pp system. There is no sign of any resonancelike structure in the energy dependence of the type recently observed for the pn-->dpi;{0}pi;{0} total cross section.
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Affiliation(s)
- S Dymov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia.
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16
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Hoblit S, Sandorfi AM, Ardashev K, Bade C, Bartalini O, Blecher M, Caracappa A, D'Angelo A, d'Angelo A, Di Salvo R, Fantini A, Gibson C, Glückler H, Hicks K, Honig A, Kageya T, Khandaker M, Kistner OC, Kizilgul S, Kucuker S, Lehmann A, Lowry M, Lucas M, Mahon J, Miceli L, Moricciani D, Norum B, Pap M, Preedom B, Seyfarth H, Schaerf C, Ströher H, Thorn CE, Whisnant CS, Wang K, Wei X. Measurements of H-->D-->(gamma-->,pi) and implications for the convergence of the Gerasimov-Drell-Hern integral. Phys Rev Lett 2009; 102:172002. [PMID: 19518773 DOI: 10.1103/physrevlett.102.172002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Indexed: 05/27/2023]
Abstract
We report new measurements of inclusive pi production from frozen-spin HD for polarized photon beams covering the Delta(1232) resonance. These provide data simultaneously on both H and D with nearly complete angular distributions of the spin-difference cross sections entering the Gerasimov-Drell-Hearn (GDH) sum rule. Recent results from Mainz and Bonn exceed the GDH prediction for the proton by 22 microb, suggesting as yet unmeasured high-energy components. Our pi0 data reveal a different angular dependence than assumed in Mainz analyses and integrate to a value that is 18 microb lower, suggesting a more rapid convergence. Our results for deuterium are somewhat lower than published data, considerably more precise, and generally lower than available calculations.
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Affiliation(s)
- S Hoblit
- Department of Physics, University of Virginia, Charlottesville, Virginia 22901, USA.
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17
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Komarov V, Azaryan T, Chiladze D, Dymov S, Dzyuba A, Hartmann M, Kacharava A, Keshelashvili I, Khoukaz A, Kulikov A, Kurbatov V, Macharashvili G, Merzliakov S, Mikirtychiants S, Papenbrock M, Nekipelov M, Rathmann F, Serdyuk V, Ströher H, Tsirkov D, Uzikov Y, Wilkin C. Observation of inverse diproton photodisintegration at intermediate energies. Phys Rev Lett 2008; 101:102501. [PMID: 18851211 DOI: 10.1103/physrevlett.101.102501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 07/23/2008] [Indexed: 05/26/2023]
Abstract
The fundamental reaction pp-->{pp}_{s}gamma, where {pp}_{s} is a proton pair with low excitation energy, has been observed with the ANKE spectrometer at COSY-Jülich for proton beam energies of T_{p}=0.353, 0.500, and 0.550 GeV. This is equivalent to photodisintegration of a free 1S0 diproton for photon energies E_{gamma} approximately T_{p}/2. The differential cross sections measured for c.m. angles 0 degrees <theta_{pp}<20 degrees exhibit a steep increase with angle that is compatible with E1 and E2 multipole contributions. The ratio of the measured cross sections to those of np-->gammad is on the 10;{-3}-10;{-2} level. The increase of the pp-->{pp}_{s}gamma cross section with T_{p} might reflect the influence of the Delta(1232) excitation.
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Affiliation(s)
- V Komarov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
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18
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Mersmann T, Khoukaz A, Büscher M, Chiladze D, Dymov S, Hartmann M, Hejny V, Kacharava A, Keshelashvili I, Kulessa P, Maeda Y, Mielke M, Mikirtychiants S, Ohm H, Papenbrock M, Prasuhn D, Rathmann F, Rausmann T, Schleichert R, Serdyuk V, Stein HJ, Ströher H, Täschner A, Valdau Y, Wilkin C, Wrońska A. Precision study of the eta3He system using the dp--> 3Heeta reaction. Phys Rev Lett 2007; 98:242301. [PMID: 17677956 DOI: 10.1103/physrevlett.98.242301] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Revised: 04/12/2007] [Indexed: 05/16/2023]
Abstract
The differential and total cross sections for the dp--> 3Heeta reaction have been measured in a high precision high statistics COSY-ANKE experiment near threshold using a continuous beam energy ramp up to an excess energy Q of 11.3 MeV with essentially 100% acceptance. The kinematics allowed the mean value of Q to be determined to about 9 keV. Evidence is found for the effects of higher partial waves for Q >or= 4 MeV. The very rapid rise of the total cross section to its maximum value within 0.5 MeV of threshold implies a very large eta3He scattering length and hence the presence of a quasibound state extremely close to threshold.
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Affiliation(s)
- T Mersmann
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
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19
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Maeda Y, Hartmann M, Keshelashvili I, Barsov S, Büscher M, Dzyuba A, Dymov S, Hejny V, Kacharava A, Kleber V, Koch HR, Koptev V, Kulessa P, Mersmann T, Mikirtytchiants S, Mussgiller A, Nekipelov M, Ohm H, Schleichert R, Stein HJ, Ströher H, Valdau Y, Watzlawik KH, Wilkin C, Wüstner P. Precision measurement of the quasifree pn-->dvarphi reaction close to threshold. Phys Rev Lett 2006; 97:142301. [PMID: 17155243 DOI: 10.1103/physrevlett.97.142301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Indexed: 05/12/2023]
Abstract
The quasifree pn-->dvarphi reaction has been studied at the Cooler Synchrotron COSY-Jülich, using the internal proton beam incident on a deuterium cluster-jet target and detecting a fast deuteron in coincidence with the K+K- decay of the varphi meson. The energy dependence of the total and differential cross sections are extracted for excess energies up to 80 MeV by determining the Fermi momentum of the target neutron on an event-by-event basis. Though these cross sections are consistent with s-wave production, the kaon angular distributions show the presence of p waves at quite a low energy. Production on the neutron is found to be stronger than on the proton but not by as much as for the eta meson.
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Affiliation(s)
- Y Maeda
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany.
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20
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Hartmann M, Maeda Y, Keshelashvili I, Koch HR, Mikirtytchiants S, Barsov S, Borgs W, Büscher M, Dimitrov VI, Dymov S, Hejny V, Kleber V, Koptev V, Kulessa P, Mersmann T, Merzliakov S, Mussgiller A, Nekipelov M, Nioradze M, Ohm H, Pysz K, Schleichert R, Stein HJ, Ströher H, Watzlawik KH, Wüstner P. Near-threshold production of phi mesons in pp collisions. Phys Rev Lett 2006; 96:242301. [PMID: 16907232 DOI: 10.1103/physrevlett.96.242301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Indexed: 05/11/2023]
Abstract
The pp-->ppphi reaction has been studied at the Cooler Synchrotron COSY-Jülich, using the internal beam and ANKE facility. Total cross sections have been determined at three excess energies epsilon near the production threshold. The differential cross section closest to threshold at epsilon=18.5 MeV exhibits a clear S wave dominance as well as a noticeable effect due to the proton-proton final-state interaction. Taken together with data for ppomega production, a significant enhancement of the phi/omega ratio of a factor 8 is found compared to predictions based on the Okubo-Zweig-Iizuka rule.
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Affiliation(s)
- M Hartmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany.
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21
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Zychor I, Koptev V, Büscher M, Dzyuba A, Keshelashvili I, Kleber V, Koch HR, Krewald S, Maeda Y, Mikirtichyants S, Nekipelov M, Ströher H, Wilkin C. Evidence for an excited hyperon state in pp --> pK+Y0*. Phys Rev Lett 2006; 96:012002. [PMID: 16486441 DOI: 10.1103/physrevlett.96.012002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2005] [Indexed: 05/06/2023]
Abstract
Indications for the production of a neutral excited hyperon in the reaction pp --> pK+Y0* are observed in an experiment performed with the ANKE spectrometer at COSY-Jülich at p(beam) = 3.65 GeV/c. Two final states were investigated simultaneously, viz. Y0* --> pi+X- and pi-X+, and consistent results were obtained in spite of the quite different experimental conditions. The parameters of the hyperon state are M(Y0*) = (1480 +/-15) MeV/c2 and gamma(Y0*) = (60 +/- 15) MeV/c2. The production cross section for Y0* decaying through these channels is of the order of few hundred nanobarns. Since the isospin of the Y0* has not been determined here, it could either be an observation of the sigma(1480), a one-star resonance of the Particle Data Group tables, or, alternatively, a lambda hyperon. Relativistic quark models for the baryon spectrum do not predict any excited hyperon in this mass range and so the Y0* may be of exotic nature.
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Affiliation(s)
- I Zychor
- The Andrzej Sołtan Institute for Nuclear Studies, 05400 Swierk, Poland
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22
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Yaschenko S, Dymov S, Kacharava A, Komarov V, Macharashvili G, Rathmann F, Barsov S, Gebel R, Hartmann M, Khoukaz A, Kulessa P, Kulikov A, Kurbatov V, Lang N, Lehmann I, Lorentz B, Mersmann T, Merzliakov S, Mikirtytchiants S, Mussgiller A, Nioradze M, Ohm H, Prasuhn D, Schleichert R, Seyfarth H, Steffens E, Stein HJ, Ströher H, Uzikov Y, Zalikhanov B, Zhuravlev N. Measurement of the analyzing power in p-->d-->(p p)n with a fast forward 1S0 proton pair. Phys Rev Lett 2005; 94:072304. [PMID: 15783808 DOI: 10.1103/physrevlett.94.072304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Indexed: 05/24/2023]
Abstract
A measurement of the analyzing power A(y) of the p-->d--> (p p) + n reaction was carried out at the ANKE spectrometer at COSY at beam energies of 0.5 and 0.8 GeV by detection of a fast forward proton pair of small excitation energy E(pp) < 3 MeV. The S-wave dominance in the fast diproton is experimentally demonstrated in this reaction. While at T(p) = 0.8 GeV the measured analyzing power almost vanishes, it rises to nearly unity at T(p) = 0.5 GeV for neutrons emitted at theta(c.m.)(n) = 167 degrees. The results are compared with a model taking into account one-nucleon exchange, single scattering, and Delta(1232) excitation in the intermediate state. The model describes fairly well the unpolarized cross section obtained earlier and the analyzing power at 0.8 GeV; it fails to reproduce A(y) at 0.5 GeV.
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Affiliation(s)
- S Yaschenko
- Physikalisches Institut II, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
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23
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Rathmann F, Lenisa P, Steffens E, Contalbrigo M, Dalpiaz PF, Kacharava A, Lehrach A, Lorentz B, Maier R, Prasuhn D, Ströher H. A method to polarize stored antiprotons to a high degree. Phys Rev Lett 2005; 94:014801. [PMID: 15698088 DOI: 10.1103/physrevlett.94.014801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2004] [Indexed: 05/24/2023]
Abstract
Polarized antiprotons can be produced in a storage ring by spin-dependent interaction in a purely electron-polarized hydrogen gas target. The polarizing process is based on spin transfer from the polarized electrons of the target atoms to the orbiting antiprotons. After spin filtering for about two beam lifetimes at energies T approximately equal 40-170 MeV using a dedicated large acceptance ring, the antiproton beam polarization would reach P=0.2-0.4. Polarized antiprotons would open new and unique research opportunities for spin-physics experiments in p(-) p interactions.
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Affiliation(s)
- F Rathmann
- Institut für Kernphysik, Forschungzentrum Jülich, 52428 Jülich, Germany.
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24
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Kleber V, Büscher M, Chernyshev V, Dymov S, Fedorets P, Grishina V, Hanhart C, Hartmann M, Hejny V, Khoukaz A, Koch HR, Komarov V, Kondratyuk L, Koptev V, Lang N, Merzliakov S, Mikirtychiants S, Nekipelov M, Ohm H, Petrus A, Prasuhn D, Schleichert R, Sibirtsev A, Stein HJ, Ströher H, Watzlawik KH, Wüstner P, Yaschenko S, Zalikhanov B, Zychor I. a+0 (980)-resonance production in pp-->dK+K-0 reactions close to threshold. Phys Rev Lett 2003; 91:172304. [PMID: 14611338 DOI: 10.1103/physrevlett.91.172304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2003] [Indexed: 05/24/2023]
Abstract
The reaction pp-->dK+K(-)0 has been investigated at an excess energy of Q=46 MeV above the K+K(-)0 threshold with ANKE at the cooler synchrotron COSY-Jülich. From the detected coincident dK(+) pairs, about 1000 events with a missing K(-)0 were identified, corresponding to a total cross section of sigma(pp-->dK+K(-)0)=[38+/-2(stat)+/-14(syst)] nb. Invariant-mass and angular distributions have been jointly analyzed and reveal s-wave dominance between the two kaons, accompanied by a p wave between the deuteron and the kaon system. This is interpreted in terms of a(+)0 (980)-resonance production.
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Affiliation(s)
- V Kleber
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany.
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25
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Rathmann F, Dymov S, Engels R, Jansen P, Kacharava A, Klehr F, Kleines H, Komarov V, Koptev V, Kravtsov P, Kulikov A, Kurbatov A, Lorentz B, Macharashvili G, Mikirtytchiants M, Nekipelov M, Nelyubin V, Prasuhn D, Petrus A, Sarkadi J, Seyfarth H, Schieck HPG, Steffens E, Ströher H, Uzikov Y, Vassiliev A, Yaschenko S, Zalikhanov B, Zwoll K. The polarized internal gas target for the deuteron break-up experiment of ANKE at COSY-Jülich. ACTA ACUST UNITED AC 2002. [DOI: 10.1007/s10582-002-0163-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Schmidt A, Achenbach P, Ahrens J, Arends HJ, Beck R, Bernstein AM, Hejny V, Kotulla M, Krusche B, Kuhr V, Leukel R, MacGregor IJ, McGeorge JC, Metag V, Olmos De León VM, Rambo F, Siodlaczek U, Ströher H, Walcher T, Weiss J, Wissmann F, Wolf M. Test of low-energy theorems for 1H(--> gamma, pi(0))(H)in the threshold hegion. Phys Rev Lett 2001; 87:232501. [PMID: 11736448 DOI: 10.1103/physrevlett.87.232501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2001] [Indexed: 05/23/2023]
Abstract
The photon asymmetry in the reaction 1H(--> gamma,pi(0))(1)H close to threshold has been measured for the first time with the photon spectrometer TAPS using linearly polarized photons from the tagged-photon facility at the Mainz Microtron MAMI. The total and differential cross sections were also measured simultaneously with the photon asymmetry. This allowed determination of the S-wave and all three P-wave amplitudes. The values obtained at threshold are E(0+) = [-1.33+/-0.08(stat)+/-0.03(syst)] x 10(-3)/m(pi(+)), P(1) = [9.47 +/- 0.08(stat) +/- 0.29(syst)] x 10(-3)q/m(2)(pi(+)), P(2) = [-9.46 +/- 0.1(stat) +/- 0.29(syst)] x 10(-3)q/m(2)(pi(+)), and P(3) = [11.48 +/- 0.06(stat) +/- 0.35(syst)] x 10(-3)q/m(2)(pi(+)).
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Affiliation(s)
- A Schmidt
- Institut für Kernphysik, Universität Mainz, D-55099 Mainz, Germany
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Novotny R, Beck R, Döring W, Hejny V, Hofstaetter A, Korzhik M, Metag V, Römer K, Ströher H. Electromagnetic calorimetry with PbWO4 in the energy regime below 1 GeV. RADIAT MEAS 2001. [DOI: 10.1016/s1350-4487(01)00069-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Langgärtner W, Ahrens J, Beck R, Hejny V, Kotulla M, Krusche B, Kuhr V, Leukel R, McGregor JD, Messchendorp JG, Metag V, Novotny R, Olmos de Léon V, Owens RO, Rambo F, Schadmand S, Schmidt A, Siodlaczek U, Ströher H, Weiss J, Wissmann F, Wolf M. Direct observation of a rho decay of the D13(1520) baryon resonance. Phys Rev Lett 2001; 87:052001. [PMID: 11497760 DOI: 10.1103/physrevlett.87.052001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2000] [Indexed: 05/23/2023]
Abstract
The reaction gammap-->pi(+)pi(0)n has been measured at MAMI for photon energies up to 820 MeV. Invariant mass spectra of the particles in the final state (pi(+)n), (pi(0)n), (pi(+)pi(0)) have been determined for several bins of incident photon energy. Differences in pi(+)pi(0) and simultaneously measured pi(0)pi(0) invariant mass distributions are assigned to a rho branch of the D13(1520) nucleon resonance.
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Affiliation(s)
- W Langgärtner
- II. Physikalisches Institut, Universität Giessen, D-35392 Giessen, Germany
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Krusche B, Ahrens J, Beck R, MacGregor IJ, McGeorge JC, Metag V, Ströher H. In-medium properties of the D13(1520) nucleon resonance. Phys Rev Lett 2001; 86:4764-4767. [PMID: 11384343 DOI: 10.1103/physrevlett.86.4764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2001] [Indexed: 05/23/2023]
Abstract
The in-medium properties of the D13(1520) nucleon resonance were studied via photoproduction of pi(0) mesons from nuclei (C, Ca, Nb, Pb) with the TAPS detector at the Mainz Microton accelerator. The inclusive (single and multiple pion production) data disagree with model predictions which explain the disappearance of the second resonance bump in total photoabsorption via a medium modification of the D13-->Nrho decay. The exclusive single pi(0) production data show no broadening of the resonance structure beyond Fermi smearing. Both results together cast doubt on attempts to explain the vanishing of the second resonance bump for nuclei by a broadening of the D13 resonance.
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Affiliation(s)
- B Krusche
- Department of Physics and Astronomy, University of Basel, Ch-4056 Basel, Switzerland
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Blanpied G, Blecher M, Caracappa A, Djalali C, Giordano G, Hicks K, Hoblit S, Khandaker M, Kistner OC, Matone G, Miceli L, Molinari C, Preedom B, Rebreyend D, Sandorfi AM, Schaerf C, Sealock RM, Ströher H, Thorn CE, Thornton ST, Whisnant CS, Zhang H, Zhao X. Polarized Compton scattering from the proton. Phys Rev Lett 1996; 76:1023-1026. [PMID: 10061614 DOI: 10.1103/physrevlett.76.1023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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31
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Krusche B, Ahrens J, Anton G, Beck R, Fuchs M, Gabler AR, Härter F, Hall S, Harty P, Hlavac S, MacGregor D, McGeorge C, Metag V, Owens R, Peise J, Röbig-Landau M, Schubert A, Simon RS, Ströher H, Tries V. Krusche et al. reply. Phys Rev Lett 1995; 75:3023. [PMID: 10059471 DOI: 10.1103/physrevlett.75.3023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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32
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Krusche B, Ahrens J, Anton G, Beck R, Fuchs M, Gabler AR, Härter F, Hall S, Harty P, Hlavac S, MacGregor D, McGeorge C, Metag V, Owens R, Peise J, Röbig-Landau M, Schubert A, Simon RS, Ströher H, Tries V. Near threshold photoproduction of eta mesons off the proton. Phys Rev Lett 1995; 74:3736-3739. [PMID: 10058284 DOI: 10.1103/physrevlett.74.3736] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wilke W, Kneissl U, Weber T, Ströher H, Cardman LS, Debevec PT, Hoblit SD, Jones RT, Nathan AM. Photofission of 238U with monochromatic gamma rays in the energy range 11-16 MeV. Phys Rev C Nucl Phys 1990; 42:2148-2156. [PMID: 9966962 DOI: 10.1103/physrevc.42.2148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Beck R, Kalleicher F, Schoch B, Vogt J, Koch G, Ströher H, Metag V, McGeorge JC, Kellie JD, Hall SJ. Measurement of the p( gamma, pi 0) cross section at threshold. Phys Rev Lett 1990; 65:1841-1844. [PMID: 10042378 DOI: 10.1103/physrevlett.65.1841] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Breitbach G, Koch G, Koch S, Kühn W, Ruckelshausen A, Metag V, Novotny R, Riess S, Habs D, Schwalm D, Grosse E, Ströher H. Dominance of nucleon-nucleon bremsstrahlung in mass-asymmetric heavy-ion collisions at 15 MeV/nucleon. Phys Rev C Nucl Phys 1989; 40:2893-2896. [PMID: 9966301 DOI: 10.1103/physrevc.40.2893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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36
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Koch G, Ströher H, Breitbach G, Metag V, Tschesche S, Beck R, Kalleicher F, Schoch B, Vogt J, McGeorge JC, Kellie JD, Hall SJ. Differential cross sections for coherent and incoherent neutral-pion photoproduction from calcium. Phys Rev Lett 1989; 63:498-501. [PMID: 10041090 DOI: 10.1103/physrevlett.63.498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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