Search for violation in D-0 and D+ decays

Authors
Link, JM Paolone, VS Reyes, M Yager, PM Anjos, JC Bediaga, I Gobel, C Magnin, J de Miranda, JM Pepe, IM dos Reis, AC Simao, FRA Carrillo, S Casimiro, E Mendez, H Sanchez-Hernandez, A Uribe, C Vazquez, F Cinquini, L Cumalat, JP Ramirez, JE O'Reilly, B Vaandering, EW Butler, JN Cheung, HWK Gaines, I Garbincius, PH Garren, LA Gottschalk, E Gourlay, SA Kasper, PH Kreymer, AE Kutschke, R Bianco, S Fabbri, FL Sarwar, S Zallo, A Cawlfield, C Kim, DY Park, KS Rahimi, A Wiss, J Gardner, R Chung, YS Kang, JS Ko, BR Kwak, JW Lee, KB Myung, SS Park, H Alimonti, G Boschini, M Brambilla, D Caccianiga, B Calandrino, A 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 Prelz, F Rovere, M Sala, A Sala, S Davenport, TF Arena, V Boca, G Bonomi, G Gianini, G Liguori, G Merlo, M Pantea, D Ratti, SP Riccardi, C Torre, P Viola, L Vitulo, P Hernandez, H Lopez, AM Mendez, L Mirles, A Montiel, E Olaya, D Quinones, J Rivera, C Zhang, Y Copty, N Purohit, M Wilson, JR Cho, K Handler, T Engh, D Johns, WE Hosack, M Nehring, MS Sales, M Sheldon, PD Stenson, K Webster, MS Sheaff, M Kwon, Y
Citation
Jm. Link et al., Search for violation in D-0 and D+ decays, PHYS LETT B, 491(3-4), 2000, pp. 232-239
Citations number
14
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
491
Issue
3-4
Year of publication
2000
Pages
232 - 239
Database
ISI
SICI code
0370-2693(20001019)491:3-4<232:SFVIDA>2.0.ZU;2-U
Abstract
A high statistics sample of photoproduced charm particles from the FOCUS (E 831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ --> K(-)K(+)pi (+), D-0 --> K-K+ and D-0 --> pi (-)pi (+) We have measured the following CP asymmetry parameters: A (CP)(K(-)K(+)pi (+)) = +0.006 +/- 0.011 +/- 0.005, A(CP)(K-Kf) = -0.001 +/- 0.022 +/- 0.015 and A(CP)(pi (-)pi (+)) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These a symmetries are consistent with zero with smaller errors than previous measu rements. (C) 2000 Elsevier Science B.V. All rights reserved.