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Zeuner T, Paa W, Mühlig C, Stafast H. Note: Broadband cavity ring-down spectroscopy of an intra-cavity bulk sample. Rev Sci Instrum 2013; 84:036104. [PMID: 23556856 DOI: 10.1063/1.4795157] [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] [Indexed: 06/02/2023]
Abstract
A cavity ring-down (CRD) setup equipped with a pulsed broadband light source (480 nm ≤ λ ≤ 650 nm) and a multichannel detection system (temporal gate width Δτ = 20 ns) is used to simultaneously record the optical loss spectrum of an intra-cavity CaF2 sample and its changes upon transverse ArF laser irradiation at 193 nm. The CRD setup with mirrors of high reflectivity (R > 99.93%) allows to register loss changes of 5 × 10(-5) with a spectral resolution of 0.3 nm in less than 2 min.
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Affiliation(s)
- T Zeuner
- Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany.
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Abt I, Adams M, Agari M, Albrecht H, Aleksandrov A, Amaral V, Amorim A, Aplin SJ, Aushev V, Bagaturia Y, Balagura V, Bargiotti M, Barsukova O, Bastos J, Batista J, Bauer C, Bauer TS, Belkov A, Belkov A, Belotelov I, Bertin A, Bobchenko B, Böcker M, Bogatyrev A, Bohm G, Bräuer M, Bruinsma M, Bruschi M, Buchholz P, Buran T, Carvalho J, Conde P, Cruse C, Dam M, Danielsen KM, Danilov M, Castro SD, Deppe H, Dong X, Dreis HB, Egorytchev V, Ehret K, Eisele F, Emeliyanov D, Essenov S, Fabbri L, Faccioli P, Feuerstack-Raible M, Flammer J, Fominykh B, Funcke M, Garrido L, Giacobbe B, Gläss J, Goloubkov D, Golubkov Y, Golutvin A, Golutvin I, Gorbounov I, Gorisek A, Gouchtchine O, Goulart DC, Gradl S, Gradl W, Grimaldi F, Groth-Jensen J, Guilitsky Y, Hansen JD, Hernández JM, Hofmann W, Hott T, Hulsbergen W, Husemann U, Igonkina O, Ispiryan M, Jagla T, Jiang C, Kapitza H, Karabekyan S, Karpenko N, Keller S, Kessler J, Khasanov F, Kiryushin Y, Klinkby E, Knöpfle KT, Kolanoski H, Korpar S, Krauss C, Kreuzer P, Krizan P, Krücker D, Kupper S, Kvaratskheliia T, Lanyov A, Lau K, Lewendel B, Lohse T, Lomonosov B, Männer R, Masciocchi S, Massa I, Matchikhilian I, Medin G, Medinnis M, Mevius M, Michetti A, Mikhailov Y, Mizuk R, Muresan R, Zur Nedden M, Negodaev M, Nörenberg M, Nowak S, Núñez Pardo de Vera MT, Ouchrif M, Ould-Saada F, Padilla C, Peralta D, Pernack R, Pestotnik R, Piccinini M, Pleier MA, Poli M, Popov V, Pose A, Pose D, Prystupa S, Pugatch V, Pylypchenko Y, Pyrlik J, Reeves K, Ressing D, Rick H, Riu I, Robmann P, Rostovtseva I, Rybnikov V, Sánchez F, Sbrizzi A, Schmelling M, Schmidt B, Schreiner A, Schröder H, Schwartz AJ, Schwarz AS, Schwenninger B, Schwingenheuer B, Sciacca F, Semprini-Cesari N, Shuvalov S, Silva L, Smirnov K, Sözüer L, Solunin S, Somov A, Somov S, Spengler J, Spighi R, Spiridonov A, Stanovnik A, Staric M, Stegmann C, Subramania HS, Symalla M, Tikhomirov I, Titov M, Tsakov I, Uwer U, van Eldik C, Vassiliev Y, Villa M, Vitale A, Vukotic I, Wahlberg H, Walenta AH, Walter M, Wang JJ, Wegener D, Werthenbach U, Wolters H, Wurth R, Wurz A, Zaitsev Y, Zavertyaev M, Zech G, Zeuner T, Zhelezov A, Zheng Z, Zimmermann R, Zivko T, Zoccoli A. Limits for the central production of Theta+ and Xi(--)pentaquarks in 920-GeV pA collisions. Phys Rev Lett 2004; 93:212003. [PMID: 15600999 DOI: 10.1103/physrevlett.93.212003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2004] [Indexed: 05/24/2023]
Abstract
We have searched for Theta+(1540) and Xi(--)(1862) pentaquark candidates in proton-induced reactions on C, Ti, and W targets at midrapidity and square root of s = 41.6 GeV. In 2 x 10(8) inelastic events we find no evidence for narrow (sigma approximately 5 MeV) signals in the Theta+ --> pK0(S) and Xi(--) --> Xi- pi- channels; our 95% C.L. upper limits (UL) for the inclusive production cross section times branching fraction B dsigma/dy/(y approximately 0) are (4-16) mub/N for a Theta+ mass between 1521 and 1555 MeV, and 2.5 mub/N for the Xi(--). The UL of the yield ratio of Theta+/Lambda(1520) < (3-12)% is significantly lower than model predictions. Our UL of B Xi(--)/Xi(1530)0 < 4% is at variance with the results that have provided the first evidence for the Xi(--).
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Affiliation(s)
- I Abt
- Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, D-80805 Munich, Germany
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