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Link JM, Yager PM, Anjos JC, Bediaga I, Castromonte C, Machado AA, Magnin J, Massafferi A, de Miranda JM, Pepe IM, Polycarpo E, dos Reis AC, Carrillo S, Casimiro E, Cuautle E, Sánchez-Hernández A, Uribe C, Vázquez F, Agostino L, Cinquini L, Cumalat JP, O'Reilly B, Segoni I, Stenson K, Butler JN, Cheung HWK, Chiodini G, Gaines I, Garbincius PH, Garren LA, Gottschalk E, Kasper PH, Kreymer AE, Kutschke R, Wang M, Benussi L, Bertani M, Bianco S, Fabbri FL, Pacetti S, Zallo A, Reyes M, Cawlfield C, Kim DY, Rahimi A, Wiss J, Gardner R, Kryemadhi A, Chung YS, Kang JS, Ko BR, Kwak JW, Lee KB, Cho K, Park H, Alimonti G, Barberis S, Boschini M, Cerutti A, D'Angelo P, DiCorato M, Dini P, Edera L, Erba S, Inzani P, Leveraro F, Malvezzi S, Menasce D, Mezzadri M, Milazzo L, Moroni L, Pedrini D, Pontoglio C, Prelz F, Rovere M, Sala S, Davenport TF, Arena V, Boca G, Bonomi G, Gianini G, Liguori G, Pegna DL, Merlo MM, Pantea D, Ratti SP, Riccardi C, Vitulo P, Göbel C, Hernandez H, Lopez AM, Mendez H, Paris A, Quinones J, Ramirez JE, Zhang Y, Wilson JR, Handler T, Mitchell R, Engh D, Hosack M, Johns WE, Luiggi E, Moore JE, Nehring M, Sheldon PD, Vaandering EW, Webster M, Sheaff M. Measurement of the D(s)+ lifetime. Phys Rev Lett 2005; 95:052003. [PMID: 16090867 DOI: 10.1103/physrevlett.95.052003] [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: 04/27/2005] [Indexed: 05/03/2023]
Abstract
A high statistics measurement of the D(s)+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis of the two decay modes, D(s)+ --> phi(1020)pi+ and D(s)+ -->K*(892)0K+, used for the measurement. The measured lifetime is 507.4 +/- 5.5(stat) +/- 5.1(syst) fs using 8961 +/- 105 D(s)+ --> phi(1020)pi+ and 4680 +/- 90 D(s)+ --> K*(892)0K+ decays. This is a significant improvement over the present world average.
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Affiliation(s)
- J M Link
- University of California, Davis, California 95616, USA
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Link JM, Reyes M, Yager PM, Anjos JC, Bediaga I, Göbel C, Magnin J, Massafferi A, de Miranda JM, Pepe IM, dos Reis AC, Carrillo S, Casimiro E, Cuautle E, Sánchez-Hernández A, Uribe C, Vazquez F, Agostino L, Cinquini L, Cumalat JP, O'Reilly B, Ramirez JE, Segoni I, Butler JN, Cheung HWK, Gaines I, Garbincius PH, Garren LA, Gottschalk E, Kasper PH, Kreymer AE, Kutschke R, Bianco S, Fabbri FL, Zallo A, Cawlfield C, Kim DY, Rahimi A, Wiss J, Gardner R, Kryemadhi A, Chung YS, Kang JS, Ko BR, Kwak JW, Lee KB, Park H, Alimonti G, Boschini M, D'Angelo P, DiCorato M, Dini P, Giammarchi M, Inzani P, Leveraro F, Malvezzi S, Menasce D, Mezzadri M, Milazzo L, Moroni L, Pedrini D, Pontoglio C, Prelz F, Rovere M, Sala S, Davenport TF, Arena V, Boca G, Bonomi G, Gianini G, Liguori G, Merlo MM, Pantea D, Ratti SP, Riccardi C, Vitulo P, Hernandez H, Lopez AM, Luiggi E, Mendez H, Mendez L, Mirles A, Montiel E, Olaya D, Paris A, Quinones J, Rivera C, Xiong W, Zhang Y, Wilson JR, Cho K, Handler T, Mitchell R, Engh D, Hosack M, Johns WE, Nehring M, Sheldon PD, Stenson K, Vaandering EW, Webster M, Sheaff M. A high statistics measurement of the Lambda(+)(c) lifetime. Phys Rev Lett 2002; 88:161801. [PMID: 11955226 DOI: 10.1103/physrevlett.88.161801] [Citation(s) in RCA: 3] [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: 01/31/2002] [Indexed: 05/23/2023]
Abstract
A high statistics measurement of the Lambda(+)(c) lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis technique with particular attention to the determination of the systematic uncertainty. The measured value of 204.6 +/- 3.4 (stat) +/- 2.5 (syst) fs from 8034 +/- 122 Lambda(+)(c)-->pK(-)pi(+) decays represents a significant improvement over the present world average.
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Affiliation(s)
- J M Link
- University of California, Davis, California 95616, USA
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Link JM, Reyes M, Yager PM, Anjos JC, Bediaga I, Göbel C, Magnin J, Massafferri A, de Miranda JM, Pepe IM, dos Reis AC, Carrillo S, Casimiro E, Sánchez-Hernández A, Uribe C, Vázquez F, Cinquini L, Cumalat JP, O'Reilly B, Ramirez JE, Vaandering EW, Butler JN, Cheung HWK, Gaines I, Garbincius PH, Garren LA, Gottschalk E, Kasper PH, Kreymer AE, Kutschke R, Bianco S, Fabbri FL, Zallo A, Cawlfield C, Kim DY, Rahimi A, Wiss J, Gardner R, Kryemadhi A, Chung YS, Kang JS, Ko BR, Kwak JW, Lee KB, Park H, Alimonti G, Boschini M, D'Angelo P, DiCorato M, Dini P, Giammarchi M, Inzani P, Leveraro F, Malvezzi S, Menasce D, Mezzadri M, Milazzo L, Moroni L, Pedrini D, Pontoglio C, Prelz F, Rovere M, Sala S, Davenport TF, Agostino L, Arena V, Boca G, Bonomi G, Gianini G, Liguori G, Merlo MM, Pantea D, Ratti SP, Riccardi C, Segoni I, Vitulo P, Hernandez H, Lopez AM, Mendez H, Mendez L, Mirles A, Montiel E, Olaya D, Paris A, Quinones J, Rivera C, Xiong W, Zhang Y, Wilson JR, Cho K, Handler T, Mitchell R, Engh D, Hosack M, Johns WE, Nehring M, Sheldon PD, Stenson K, Webster M, Sheaff M. Search for CP violation in the decays D+--> K(S)pi+ and D+-->K(S)K+. Phys Rev Lett 2002; 88:041602. [PMID: 11801103 DOI: 10.1103/physrevlett.88.041602] [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: 09/17/2001] [Indexed: 05/23/2023]
Abstract
A high-statistics sample of photoproduced charm from the FOCUS experiment has been used to search for direct CP violation in the decay rates for D+-->K(S)pi+ and D+-->K(S)K+. We have measured the following asymmetry parameters relative to D+-->K-pi+pi+: A(CP)(K(S)pi+) = (-1.6+/-1.5+/-0.9)%, A(CP)(K(S)K+) = (+6.9+/-6.0+/-1.5)%, and A(CP)(K(S)K+) = (+7.1+/-6.1+/-1.2)% relative to D+-->K(S)pi+. We have also measured the relative branching ratios and found Gamma(D+-->K(0)pi+)/Gamma(D+-->K-pi+pi+) = (30.60+/-0.46+/-0.32)%, Gamma(D+-->K(0)K+)/Gamma(D+-->K-pi+pi+) = (6.04+/-0.35+/-0.30)%, and Gamma(D+-->K(0)K+)/Gamma(D+-->K(0)pi+) = (19.96+/-1.19+/-0.96)%.
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Affiliation(s)
- J M Link
- University of California, Davis, California 95616, USA
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Link JM, Reyes M, Yager PM, Anjos JC, Bediaga I, Göbel C, Magnin J, Massafferi A, de Miranda JM, Pepe IM, dos Reis AC, Simão FR, Carrillo S, Casimiro E, Sánchez-Hernández A, Uribe C, Vázquez F, Cinquini L, Cumalat JP, O'Reilly B, Ramirez JE, Vaandering EW, Butler JN, Cheung HW, Gaines I, Garbincius PH, Garren LA, Gottschalk E, Kasper PH, Kreymer AE, Kutschke R, Bianco S, Fabbri FL, Sarwar S, Zallo A, Cawlfield C, Kim DY, Rahimi A, Wiss J, Gardner R, Chung YS, Kang JS, Ko BR, Kwak JW, Lee KB, Park H, Alimonti G, Boschini M, Caccianiga B, D'Angelo P, DiCorato M, Dini P, Giammarchi M, Inzani P, Leveraro F, Malvezzi S, Menasce D, Mezzadri M, Milazzo L, Moroni L, Pedrini D, Pontoglio C, Prelz F, Rovere M, Sala A, Sala S, Davenport TF, Agostino L, Arena V, Boca G, Bonomi G, Gianini G, Liguori G, Merlo M, Pantea D, Ratti SP, Riccardi C, Segoni I, Viola L, Vitulo P, Hernandez H, Lopez AM, Mendez H, Mendez L, Mirles A, Montiel E, Olaya D, Paris A, Quinones J, Rivera C, Xiong W, Zhang Y, Wilson JR, Cho K, Handler T, Engh D, Hosack M, Johns WE, Nehring M, Sheldon PD, Stenson K, Webster M, Sheaff M. Measurement of the branching ratios of D(+) and D(+)(s) hadronic decays to four-body final states containing a K(S). Phys Rev Lett 2001; 87:162001. [PMID: 11690200 DOI: 10.1103/physrevlett.87.162001] [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: 05/12/2001] [Indexed: 05/23/2023]
Abstract
We have studied hadronic four-body decays of D(+) and D(+)(s) mesons with a K(S) in the final state using data recorded during the 1996-1997 fixed-target run of the Fermilab high energy photoproduction experiment FOCUS. We report a new branching ratio measurement of gamma(D(+)-->K(S)K-pi(+)pi(+))/gamma(D(+)-->K(S)pi(+)pi(+)pi(-)) = 0.0768+/-0.0041+/-0.0032. We make the first observation of three new decay modes with branching ratios gamma(D(+)-->K(S)K+pi(+)pi(-))/gamma(D(+)-->K(S)pi(+)pi(+)pi(-)) = 0.0562+/-0.0039+/-0.0040, gamma(D(+)-->K(S)K+K-pi(+))/gamma(D(+)-->K(S)pi(+)pi(+)pi(-)) = 0.0077+/-0.0015+/-0.0009, and gamma(D(+)(s)-->K(S)K+pi(+)pi(-))/gamma(D(+)(s)-->K(S)K-pi(+)pi(+)) = 0.586+/-0.052+/-0.043, where in each case the first error is statistical and the second error is systematic.
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Affiliation(s)
- J M Link
- University of California, Davis, California 95616, USA
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Link JM, Reyes M, Yager PM, Anjos JC, Bediaga I, Göbel C, Magnin J, Massafferi A, de Miranda JM, Pepe IM, dos Reis AC, Simão FR, Carrillo S, Casimiro E, Sánchez-Hernández A, Uribe C, Vazquez F, Cinquini L, Cumalat JP, O'Reilly B, Ramirez JE, Vaandering EW, Butler JN, Cheung HW, Gaines I, Garbincius PH, Garren LA, Gottschalk E, Kasper PH, Kreymer AE, Kutschke R, Bianco S, Fabbri FL, Sarwar S, Zallo A, Cawlfield C, Kim DY, Rahimi A, Wiss J, Gardner R, Chung YS, Kang JS, Ko BR, Kwak JW, Lee KB, Park H, Alimonti G, Boschini M, Caccianiga B, D'Angelo P, DiCorato M, Dini P, Giammarchi M, Inzani P, Leveraro F, Malvezzi S, Menasce D, Mezzadri M, Milazzo L, Moroni L, Pedrini D, Pontoglio C, Prelz F, Rovere M, Sala A, Sala S, Davenport TF, Agostino L, Arena V, Boca G, Bonomi G, Gianini G, Liguori G, Merlo M, Pantea D, Ratti SP, Riccardi C, Segoni I, Viola L, Vitulo P, Hernandez H, Lopez AM, Mendez H, Mendez L, Mirles A, Montiel E, Olaya D, Paris A, Quinones J, Rivera C, Xiong W, Zhang Y, Wilson JR, Cho K, Handler T, Engh D, Hosack M, Johns WE, Nehring MS, Sheldon PD, Stenson K, Webster MS, Sheaff M. Study of the decay D0 --> K+pi-. Phys Rev Lett 2001; 86:2955-2958. [PMID: 11290081 DOI: 10.1103/physrevlett.86.2955] [Citation(s) in RCA: 3] [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: 12/20/2000] [Indexed: 05/23/2023]
Abstract
Using a large sample of photoproduced charm mesons from the FOCUS experiment at Fermilab (FNAL-E831), we observe the decay D0-->K+pi- with a signal yield of 149+/-31 events compared to a similarly cut sample consisting of 36 760+/-195 D0-->K-pi+ events. We use the observed ratio of D0-->K+pi- to D0-->K-pi+ (0.404+/-0.085+/-0.025)% to obtain a relationship between the D0 mixing and doubly Cabibbo suppressed decay parameters.
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Affiliation(s)
- J M Link
- University of California, Davis 95616, USA
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Torres S, Ficenec JR, Mikocki S, Trower WP, Lai KW, LeBritton J, Lin YC, Pifer AE, Fenker HC, Green DR, Davenport TF, Goldman JH, Hagopian SL, Lannutti JE, Canough G, Chang CC, Davis TC, Joyner RW, Poirier JA, Georgiopoulos CH, Napier A, Marraffino JM, Waters JW, Webster MS, Williams EG, Woosley JK. Observation of phiK pi decay of the K. Phys Rev D Part Fields 1986; 34:707-710. [PMID: 9957201 DOI: 10.1103/physrevd.34.707] [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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Davenport TF, Albright JR, Goldman JH, Hagopian SL, Lannutti JE, Lai KW, LeBritton J, Lin YC, Pifer AE, Fenker HC, Green DR, Canough GE, Chang CC, Davis TC, Joyner RW, Poirier JA, Georgiopoulos CH, Napier A, Marraffino JM, Waters JW, Webster MS, Williams EG, Woosley J, Ficenec JR, Torres S, Trower WP. Observation of double phi-meson production in 400-GeV/c proton-nucleon interactions. Phys Rev D Part Fields 1986; 33:2519-2527. [PMID: 9956937 DOI: 10.1103/physrevd.33.2519] [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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Green DR, Fenker HC, Lai KW, LeBritton J, Lin YC, Pifer AE, Davenport TF, Goldman JH, Hagopian SL, Lannutti JE, Canough G, Chang CC, Davis TC, Joyner RW, Poirier JA, Georgiopoulos CH, Napier A, Schneps J, Marraffino JM, Waters JW, Webster MS, Williams EG, Woosley J, Ficenec JR, Torres S, Trower WP. Observation of a narrow enhancement in phiKK and phi pi pi final states produced in 400-GeV p-N interactions. Phys Rev Lett 1986; 56:1639-1642. [PMID: 10032730 DOI: 10.1103/physrevlett.56.1639] [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: 05/23/2023]
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Davenport TF. Minutes of the Cincinnati Local Dental Association. Dent Regist 1861; 15:98. [PMID: 33694920 PMCID: PMC6872400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Davenport TF. Minutes of the Cincinnati Local Dental Association. Dent Regist 1861; 15:27-29. [PMID: 33694910 PMCID: PMC6872389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Davenport TF. Proceedings of the Local Dental Association. Dent Regist 1860; 14:278-280. [PMID: 33694772 PMCID: PMC6855760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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