A new measurement of the Xi(+)(c) lifetime

Authors
Link, JM Reyes, M Yager, PM Anjos, JC Bediaga, I Gobel, C Magnin, J Massafferri, A de Miranda, JM Pepe, IM Dos Reis, AC Carrillo, S Casimiro, E Sanchez-Hernandez, A Uribe, C Vazquez, 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 Kryermadhi, A Chung, YS Kang, JS Ko, BR Kwak, JW Lee, KB Park, H Alimonti, G Boschini, M Chiodini, G 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
Citation
Jm. Link et al., A new measurement of the Xi(+)(c) lifetime, PHYS LETT B, 523(1-2), 2001, pp. 53-59
Citations number
15
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
523
Issue
1-2
Year of publication
2001
Pages
53 - 59
Database
ISI
SICI code
0370-2693(200112)523:1-2<53:ANMOTX>2.0.ZU;2-8
Abstract
A precise determination of the charm-strange baryon Xi (+)(c) lifetime is p resented. The data were accumulated by the Fermilab high-energy photoproduc tion experiment FOCUS. The measurement is made with 300 Xi (+)(c) --> Xi (- )pi (+)pi (+) decays, 130 Xi (+)(c) --> Sigma (+)K(-)pi (+) decays, 45 Xi ( +)(c) --> pK(-)pi (+) decays and 58 Xi (+)(c) --> Lambda (0)K(-)pi (+)pi () decays. The Xi (+)(c) lifetime is measured to be 0.439 +/- 0.022 +/- 0.00 9 ps. (C) 2001 Elsevier Science B.V. All rights reserved.