Evidence for D0-(D)over-bar0 mixing

被引：214

作者：

Staric, M. ^{[1
]}

Golob, B.

Abe, K.

Adachi, I.

Aihara, H.

Arinstein, K.

Aushev, T.

Aziz, T.

Bahinipati, S.

Bakich, A. M.

Balagura, V.

Barberio, E.

Bay, A.

Belous, K.

Bitenc, U.

Bizjak, I.

Blyth, S.

Bondar, A.

Bozek, A.

Bracko, M.

Brodzicka, J.

Browder, T. E.

Chang, P.

Chao, Y.

Chen, A.

Chen, K.-F.

Chen, W. T.

Cheon, B. G.

Chistov, R.

Cho, I.-S.

Choi, S.-K.

Choi, Y.

Cole, S.

Dalseno, J.

Danilov, M.

Dash, M.

Dragic, J.

Drutskoy, A.

Eidelman, S.

Epifanov, D.

Fratina, S.

Gabyshev, N.

Garmash, A.

Gorisek, A.

Ha, H.

Haba, J.

Hara, T.

Hastings, N. C.

Hayasaka, K.

机构：

[1] Jozef Stefan Inst, Ljubljana, Slovenia

[2] Inst Theoret & Expt Phys, Moscow 117259, Russia

[3] Inst High Energy Phys, Protvino, Russia

[4] Inst High Energy Phys, Vienna, Austria

[5] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[6] Univ Illinois, Urbana, IL 61801 USA

[7] Hiroshima Inst Technol, Hiroshima, Japan

[8] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan

[9] Univ Hawaii, Honolulu, HI 96822 USA

[10] Hanyang Univ, Seoul 133791, South Korea

[11] Gyeongsang Natl Univ, Chinju, South Korea

[12] Grad Univ Adv Studies, Hayama, Japan

[13] Univ Giessen, Giessen, Germany

[14] Univ Cincinnati, Cincinnati, OH 45221 USA

[15] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[16] Kanagawa Univ, Yokohama, Kanagawa, Japan

[17] Korea Univ, Seoul 136701, South Korea

[18] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland

[19] Univ Ljubljana, Ljubljana, Slovenia

[20] Univ Maribor, SLO-2000 Maribor, Slovenia

[21] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[22] Nagoya Univ, Nagoya, Aichi, Japan

[23] Nara Womens Univ, Nara 630, Japan

[24] Natl Cent Univ, Chungli 32054, Taiwan

[25] Natl United Univ, Miaoli, Taiwan

[26] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

[27] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[28] Nippon Dent Univ, Niigata, Japan

[29] Niigata Univ, Niigata, Japan

[30] Univ Nova Gorica, Nova Gorica, Slovenia

[31] Osaka City Univ, Osaka 558, Japan

[32] Osaka Univ, Osaka, Japan

[33] Panjab Univ, Chandigarh 160014, India

[34] Peking Univ, Beijing 100871, Peoples R China

[35] Princeton Univ, Princeton, NJ 08544 USA

[36] RIKEN BNL Res Ctr, Upton, NY 11973 USA

[37] Saga Univ, Saga 840, Japan

[38] Univ Sci & Technol China, Hefei 230026, Peoples R China

[39] Seoul Natl Univ, Seoul, South Korea

[40] Shinshu Univ, Nagano, Japan

[41] Sungkyunkwan Univ, Suwon, South Korea

[42] Univ Sydney, Sydney, NSW 2006, Australia

[43] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[44] Toho Univ, Funabashi, Chiba 274, Japan

[45] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan

[46] Tohoku Univ, Sendai, Miyagi 980, Japan

[47] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[48] Tokyo Inst Technol, Tokyo 152, Japan

[49] Tokyo Metropolitan Univ, Tokyo 158, Japan

[50] Tokyo Univ Agr & Technol, Tokyo, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 21期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.98.211803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe evidence for D-0-(D) over bar (0) mixing by measuring the difference in the apparent lifetime when a D-0 meson decays to the CP eigenstates K+K- and pi(+)pi(-) and when it decays to the final state K-pi(+). We find the relative difference of the lifetimes y(CP) to be [1.31 +/- 0.32(stat)+/- 0.25(syst)]%, 3.2 standard deviations from zero. We also search for a CP asymmetry between D-0 and (D) over bar (0) decays; no evidence for CP violation is found. These results are based on 540 fb(-1) of data recorded by the Belle detector at the KEKB e(+)e(-) collider.

引用

页数：6

共 20 条

[1] The Belle detector
Abashian, A
Abe, K
Abe, R
Abe, K
Adachi, I
Ahn, BS
Ahn, HS
Aihara, H
Akatsu, M
Akhmetshin, R
Alexander, JP
Alimonti, G
An, Q
Aoki, K
Asai, M
Asano, Y
Aso, T
Aulchenko, V
Bakich, AM
Banas, E
Behari, S
Behera, PK
Beiline, D
Bondar, A
Bozek, A
Browder, TE
Casey, BCK
Chang, P
Chang, YH
Chao, Y
Chen, HS
Chen, HF
Chen, YQ
Cheon, BG
Chidzik, S
Choi, S
Choi, Y
Dneprovsky, L
Doi, Y
Dong, LY
Dragic, J
Drutskoy, A
Eidelman, S
Enomoto, R
Everton, CW
Fang, F
Fujii, H
Fujimoto, K
Fujita, Y
Fukunaga, C
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 479 (01) : 117 - 232
[2] Direct limits on the Bs0 oscillation frequency
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Agelou, M.
Agram, J. -L.
Ahn, S. H.
Ahsan, M.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Anastasoaie, M.
Andeen, T.
Anderson, S.
Andrieu, B.
Anzelc, M. S.
Arnoud, Y.
Arov, M.
Askew, A.
Asman, B.
Jesus, A. C. S. Assis
Atramentov, O.
Autermann, C.
Avila, C.
Ay, C.
Badaud, F.
Baden, A.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, P.
Banerjee, S.
Barberis, E.
Bargassa, P.
Baringer, P.
Barnes, C.
Barreto, J.
Bartlett, J. F.
Bassler, U.
Bauer, D.
Bean, A.
Begalli, M.
Begel, M.
Belanger-Champagne, C.
Bellavance, A.
Benitez, J. A.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (02)
[3] Abe K, 2002, PHYS REV LETT, V88, DOI [10.1103/PhysRevLett.88.181803, 10.1103/PhysRevLett.88.052002]
[4] Observation of Bs0Bs0 oscillations
Abulencia, A.
Adelman, J.
Affolder, T.
Akimoto, T.
Albrow, M. G.
Ambrose, D.
Amerio, S.
Amidei, D.
Anastassov, A.
Anikeev, K.
Annovi, A.
Antos, J.
Aoki, M.
Apollinari, G.
Arguin, J. -F.
Arisawa, T.
Artikov, A.
Ashmanskas, W.
Attal, A.
Azfar, F.
Azzi-Bacchetta, P.
Azzurri, P.
Bacchetta, N.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Baroiant, S.
Bartsch, V.
Bauer, G.
Bedeschi, F.
Behari, S.
Belforte, S.
Bellettini, G.
Bellinger, J.
Belloni, A.
Benjamin, D.
Beretvas, A.
Beringer, J.
Berry, T.
Bhatti, A.
Binkley, M.
Bisello, D.
Blair, R. E.
Blocker, C.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Boisvert, V.
Bolla, G.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (24)
[5] Measurements of lifetimes and a limit on the lifetime difference in the neutral D-Meson system
Aitala, EM
Amato, S
Anjos, JC
Appel, JA
Ashery, D
Banerjee, S
Bediaga, I
Blaylock, G
Bracker, SB
Burchat, PR
Burnstein, RA
Carter, T
Carvalho, HS
Copty, NK
Cremaldi, LM
Darling, C
Denisenko, K
Fernandez, A
Fox, GF
Gagnon, P
Gobel, C
Gounder, K
Halling, AM
Herrera, G
Hurvits, G
James, C
Kasper, PA
Kwan, S
Langs, DC
Leslie, J
Lundberg, B
MayTal-Beck, S
Meadows, B
Neto, JRTD
Mihalcea, D
Milburn, RH
de Miranda, JM
Napier, A
Nguyen, A
d'Oliveira, AB
O'Shaughnessy, K
Peng, KC
Perera, LP
Purohit, MV
Quinn, B
Radeztsky, S
Rafatian, A
Reay, NW
Reidy, JJ
dos Reis, AC
[J]. PHYSICAL REVIEW LETTERS, 1999, 83 (01) : 32 - 36
[6] Aubert B, 2007, PHYS REV LETT, V98, DOI 10.1103/PhysRevLett.98.211802
[7] 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
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
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (12) : 1218011 - 1218017
[8] Lessons from CLEO and FOCUS measurements of D0-(D0)over-bar mixing parameters
Bergmann, S
Grossman, Y
Ligeti, Z
Nir, Y
Petrov, AA
[J]. PHYSICS LETTERS B, 2000, 486 (3-4) : 418 - 425
[9] D0(D)over-bar-0 oscillations as a probe of quark-hadron duality
Bigi, II
Uraltsev, NG
[J]. NUCLEAR PHYSICS B, 2001, 592 (1-2) : 92 - 106
[10] BIGI II, 2000, CP VIOLATION, P257

← 1 2 →