Measurement of the doubly Cabibbo suppressed decay D0 K+π- and a search for charm mixing

被引:29
作者
Link, JM [1 ]
Yager, PM
Anjos, JC
Bediaga, I
Göbel, C
Machado, AA
Magnin, J
Massafferri, 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
Zallo, A
Reyes, M
Cawlfield, C
Kim, DY
Rahimi, A
Wiss, J
Gardner, R
Kryemadhi, A
Chung, YS
Kang, JS
Ko, BR
机构
[1] Univ Calif Davis, Davis, CA 95616 USA
[2] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
[3] CINVESTAV, Mexico City 07000, DF, Mexico
[4] Univ Colorado, Boulder, CO 80309 USA
[5] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[6] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[7] Univ Guanajuato, Leon 37150, Guanajuato, Mexico
[8] Univ Illinois, Urbana, IL 61801 USA
[9] Indiana Univ, Bloomington, IN 47405 USA
[10] Korea Univ, Seoul 136701, South Korea
[11] Kyungpook Natl Univ, Taegu 702701, South Korea
[12] Ist Nazl Fis Nucl, I-20133 Milan, Italy
[13] Univ Milan, I-20133 Milan, Italy
[14] Univ N Carolina, Asheville, NC 28804 USA
[15] Dipartimento Fis Teorica & Nucl, Pavia, Italy
[16] Ist Nazl Fis Nucl, I-27100 Pavia, Italy
[17] Univ Puerto Rico, Mayaguez, PR 00681 USA
[18] Univ Tennessee, Knoxville, TN 37996 USA
[19] Vanderbilt Univ, Nashville, TN 37235 USA
[20] Univ Wisconsin, Madison, WI 53706 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/j.physletb.2005.05.020
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present an analysis of the decay D-0 -> K+pi(-) based on FOCUS data. From a sample of 234 signal events, we find a branching ration of Gamma(D-0 -> K+pi(-))/Gamma(D-0 -> K-pi(+)) = (0.429(-0.061)(+0.063) +/- 0.027)% under the assumptions of no mixing and no CP violation. Allowing for CP violation, we find a branching ration of (0.429 +/- 0.063 +/- 0.028)% and a CP asymmetry of 0.18 +/- 0.04. The branching ratio for the case of mixing with no CP violation is (0.381(-0.163)(+0.167) +/- 0.092)%. We also present limits on charm mixing. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:23 / 33
页数:11
相关论文
共 10 条
[1]   Limits on D0-(D)over-bar0 mixing and CP violation from the ratio of lifetimes for decay to K-π+, K-K+, and π-π+ -: art. no. 121801 [J].
Aubert, B ;
Barate, R ;
Boutigny, D ;
Gaillard, JM ;
Hicheur, A ;
Karyotakis, Y ;
Lees, JP ;
Robbe, P ;
Tisserand, V ;
Zghiche, A ;
Palano, A ;
Pompili, A ;
Chen, JC ;
Qi, ND ;
Rong, G ;
Wang, P ;
Zhu, YS ;
Eigen, G ;
Ofte, I ;
Stugu, B ;
Abrams, GS ;
Borgland, AW ;
Breon, AB ;
Brown, DN ;
Button-Shafer, J ;
Cahn, RN ;
Charles, E ;
Day, CT ;
Gill, MS ;
Gritsan, AV ;
Groysman, Y ;
Jacobsen, RG ;
Kadel, RW ;
Kadyk, J ;
Kerth, LT ;
Kolomensky, YG ;
Kral, JF ;
Kukartsev, G ;
LeClerc, C ;
Levi, ME ;
Lynch, G ;
Mir, LM ;
Oddone, PJ ;
Orimoto, TJ ;
Pripstein, M ;
Roe, NA ;
Romosan, A ;
Ronan, MT ;
Shelkov, VG ;
Telnov, AV .
PHYSICAL REVIEW LETTERS, 2003, 91 (12) :1218011-1218017
[2]   PHOTOS - A UNIVERSAL MONTE-CARLO FOR QED RADIATIVE-CORRECTIONS - VERSION 2.0 [J].
BARBERIO, E ;
WAS, Z .
COMPUTER PHYSICS COMMUNICATIONS, 1994, 79 (02) :291-308
[3]   Review of particle physics [J].
Eidelman, S ;
Hayes, KG ;
Olive, KA ;
Aguilar-Benitez, M ;
Amsler, C ;
Asner, D ;
Babu, KS ;
Barnett, RM ;
Beringer, J ;
Burchat, PR ;
Carone, CD ;
Caso, C ;
Conforto, G ;
Dahl, O ;
D'Ambrosio, G ;
Doser, M ;
Feng, JL ;
Gherghetta, T ;
Gibbons, L ;
Goodman, M ;
Grab, C ;
Groom, DE ;
Gurtu, A ;
Hagiwara, K ;
Hernández-Rey, JJ ;
Hikasa, K ;
Honscheid, K ;
Jawahery, H ;
Kolda, C ;
Kwon, Y ;
Mangano, ML ;
Manohar, AV ;
March-Russell, J ;
Masoni, A ;
Miquel, R ;
Mönig, K ;
Murayama, H ;
Nakamura, K ;
Navas, S ;
Pape, L ;
Patrignani, C ;
Piepke, A ;
Raffelt, G ;
Roos, M ;
Tanabashi, M ;
Terning, J ;
Törnqvist, NA ;
Trippe, TG ;
Vogel, P ;
Wohl, CG .
PHYSICS LETTERS B, 2004, 592 (1-4) :1-1109
[4]   Search for D0-0 mixing [J].
Godang, R ;
Kinoshita, K ;
Lai, IC ;
Schrenk, S ;
Bonvicini, G ;
Cinabro, D ;
Perera, LP ;
Zhou, GJ ;
Eigen, G ;
Lipeles, E ;
Schmidtler, M ;
Shapiro, A ;
Sun, WM ;
Weinstein, AJ ;
Würthwein, F ;
Jaffe, DE ;
Masek, G ;
Paar, HP ;
Potter, EM ;
Prell, S ;
Sharma, V ;
Asner, DM ;
Eppich, A ;
Gronberg, J ;
Hill, TS ;
Korte, CM ;
Kutschke, R ;
Lange, DJ ;
Morrison, RJ ;
Nelson, HN ;
Qiao, C ;
Ryd, A ;
Tajima, H ;
Witherell, MS ;
Briere, RA ;
Behrens, BH ;
Ford, WT ;
Gritsan, A ;
Roy, J ;
Smith, JG ;
Alexander, JP ;
Baker, R ;
Bebek, C ;
Berger, BE ;
Berkelman, K ;
Blanc, F ;
Boisvert, V ;
Cassel, DG ;
Dickson, M ;
Drell, PS .
PHYSICAL REVIEW LETTERS, 2000, 84 (22) :5038-5042
[5]  
James F., 1994, CERND506
[6]  
LI J, HEPEX0408125
[7]   A measurement of lifetime differences in the neutral D-meson system [J].
Link, JM ;
Paolone, VS ;
Reyes, M ;
Yager, PM ;
Anjos, JC ;
Bediaga, I ;
Göbel, C ;
Magnin, J ;
de Miranda, JM ;
Pepe, IM ;
dos Reis, AC ;
Simao, FRA ;
Vale, MA ;
Carrillo, S ;
Casimiro, E ;
Mendez, H ;
Sánchez-Hernández, 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 .
PHYSICS LETTERS B, 2000, 485 (1-3) :62-70
[8]   The target silicon detector for the FOCUS spectrometer [J].
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 ;
Cuautle, E ;
Sánchez-Hernández, A ;
Uribe, C ;
Vázquez, F ;
Agostino, L ;
Cinquini, L ;
Cumalat, JP ;
O'Reilly, B ;
Ramirez, JE ;
Segoni, I ;
Butler, JN ;
Cheung, HWK ;
Chiodini, G ;
Gaines, I ;
Garbincius, PH ;
Garren, LA ;
Gottschalk, E ;
Kasper, PH ;
Kreymer, AE ;
Kutschke, R ;
Benussi, L ;
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 ;
Cho, K ;
Park, H .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 516 (2-3) :364-376
[9]   Cherenkov particle identification in FOCUS [J].
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 ;
Cuautle, E ;
Sánchez-Hernández, 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 ;
Sarwar, S ;
Zallo, A ;
Cawlfield, C ;
Kim, DY ;
Park, KS ;
Rahimi, A ;
Wiss, J ;
Gardner, R ;
Kryemadhi, A ;
Chung, YS ;
Kang, JS ;
Ko, BR ;
Kwak, JW ;
Lee, KB ;
Park, H ;
Alimonti, G ;
Boschini, M .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 484 (1-3) :270-286
[10]   Study of the decay D0 → K+π- [J].
Link, JM ;
Reyes, M ;
Yager, PM ;
Anjos, JC ;
Bediaga, I ;
Göbel, C ;
Magnin, J ;
Massafferi, A ;
de Miranda, JM ;
Pepe, IM ;
dos Reis, AC ;
Simao, FRA ;
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, HWK ;
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, C ;
Boschini, M ;
Caccianiga, B ;
D'Angelo, P .
PHYSICAL REVIEW LETTERS, 2001, 86 (14) :2955-2958