An improved measurement of direct CP violation parameters in B± → J/ψK± and B± → J/ψπ± decays

被引：0
|
作者：
Bertram, Iain [1 ]
机构：
[1] Univ Lancaster, Lancaster, England
来源：
14TH INTERNATIONAL CONFERENCE OF B-PHYSICS AT HADRON MACHINES (BEAUTY 2013) | 2013年
关键词：
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present a measurement of the direct CP-violating charge asymmetry in B-+/- mesons decaying to J/psi K-+/- and J/psi pi(+/-) where J/psi decays to mu(+)mu(-), using 10.4 fb(-1) of proton-antiproton collisions collected by the D0 detector during Run II at the Fermilab Tevatron Collider. A difference in the yield of B- and B+ mesons in these decays is found by fitting to the difference between their reconstructed invariant mass distributions resulting in asymmetries of A(J/psi K) = [0.59 +/- 0.36] %, which is the most precise measurement to date, and A(J/psi pi) = [-4.2 +/- 4.8] %. Both measurements are consistent with standard model predictions. These measurements are combined with all previous measurements to form new world averages of A(J/psi K) and A(J/psi pi).
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Study of direct CP violation in B±→J/ψK±(π±) decays
    Abazov, V. M.
    Abbott, B.
    Abolins, M.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Aguilo, E.
    Ahn, S. H.
    Ahsan, M.
    Alexeev, G. D.
    Alkhazov, G.
    Alton, A.
    Alverson, G.
    Alves, G. A.
    Anastasoaie, M.
    Ancu, L. S.
    Andeen, T.
    Anderson, S.
    Andrieu, B.
    Anzelc, M. S.
    Aoki, M.
    Arnoud, Y.
    Arov, M.
    Arthaud, M.
    Askew, A.
    Asman, B.
    Jesus, A. C. S. Assis
    Atramentov, O.
    Avila, C.
    Ay, C.
    Badaud, F.
    Baden, A.
    Bagby, L.
    Baldin, B.
    Bandurin, D. V.
    Banerjee, P.
    Banerjee, S.
    Barberis, E.
    Barfuss, A. -F.
    Bargassa, P.
    Baringer, P.
    Barreto, J.
    Bartlett, J. F.
    Bassler, U.
    Bauer, D.
    Beale, S.
    Bean, A.
    Begalli, M.
    Begel, M.
    Belanger-Champagne, C.
    PHYSICAL REVIEW LETTERS, 2008, 100 (21)
  • [2] Measurement of direct CP violation parameters in B± → J/ψ K± and B± → J/ψπ± decays with 10.4 fb-1 of Tevatron data
    Abazov, V. M.
    Abbott, B.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Agnew, J. P.
    Alexeev, G. D.
    Alkhazov, G.
    Alton, A.
    Askew, A.
    Atkins, S.
    Augsten, K.
    Avila, C.
    Badaud, F.
    Bagby, L.
    Baldin, B.
    Bandurin, D. V.
    Banerjee, S.
    Barberis, E.
    Baringer, P.
    Bartlett, J. F.
    Bassler, U.
    Bazterra, V.
    Bean, A.
    Beattie, M.
    Begalli, M.
    Bellantoni, L.
    Beri, S. B.
    Bernardi, G.
    Bernhard, R.
    Bertram, I.
    Besancon, M.
    Beuselinck, R.
    Bhat, P. C.
    Bhatia, S.
    Bhatnagar, V.
    Blazey, G.
    Blessing, S.
    Bloom, K.
    Boehnlein, A.
    Boline, D.
    Boos, E. E.
    Borissov, G.
    Brandt, A.
    Brandt, O.
    Brock, R.
    Bross, A.
    Brown, D.
    Bu, X. B.
    Buehler, M.
    PHYSICAL REVIEW LETTERS, 2013, 110 (24)
  • [3] Improved Measurement of CP Violation Parameters in B0s → J=ψK plus K - Decays in the Vicinity of the φ(1020) Resonance
    Aaij, R.
    Abdelmotteleb, A. S. W.
    Beteta, C. Abellan
    Abudinen, F.
    Ackernley, T.
    Adeva, B.
    Adinolfi, M.
    Adlarson, P.
    Afsharnia, H.
    Agapopoulou, C.
    Aidala, C. A.
    Ajaltouni, Z.
    Akar, S.
    Akiba, K.
    Albicocco, P.
    Albrecht, J.
    Alessio, F.
    Alexander, M.
    Alfonso Albero, A.
    Aliouche, Z.
    Cartelle, P. Alvarez
    Amalric, R.
    Amato, S.
    Amey, J. L.
    Amhis, Y.
    An, L.
    Anderlini, L.
    Andersson, M.
    Andreianov, A.
    Andreola, P.
    Andreotti, M.
    Andreou, D.
    Ao, D.
    Archilli, F.
    Artamonov, A.
    Artuso, M.
    Aslanides, E.
    Atzeni, M.
    Audurier, B.
    Bacher, D.
    Perea, I. Bachiller
    Bachmann, S.
    Bachmayer, M.
    Back, J. J.
    Bailly-Reyre, A.
    Baladron Rodriguez, P.
    Balagura, V.
    Baldini, W.
    Baptista de Souza Leite, J.
    Barbetti, M.
    PHYSICAL REVIEW LETTERS, 2024, 132 (05)
  • [4] Study of B±→J/ψπ± and B±→J/ψK± decays:: Measurement of the ratio of branching fractions and search for direct CP violation -: art. no. 241802
    Aubert, B
    Barate, R
    Boutigny, D
    Couderc, F
    Gaillard, JM
    Hicheur, A
    Karyotakis, Y
    Lees, JP
    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
    Kukartsev, G
    LeClerc, C
    Levi, ME
    Lynch, G
    Mir, LM
    Oddone, PJ
    Orimoto, TJ
    Pripstein, M
    Roe, NA
    Ronan, MT
    Shelkov, VG
    Telnov, AV
    Wenzel, WA
    Ford, K
    PHYSICAL REVIEW LETTERS, 2004, 92 (24) : 241802 - 1
  • [5] Search for CP violation in B±→J/ψK± and B±→ψ(2S)K± decays
    Bonvicini, G
    Cinabro, D
    McGee, S
    Perera, LP
    Zhou, GJ
    Lipeles, E
    Pappas, S
    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
    Hill, TS
    Morrison, RJ
    Nelson, HN
    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
    Ecklund, KM
    Ehrlich, R
    Foland, AD
    Gaidarev, P
    Gibbons, L
    Gittelman, B
    Gray, SW
    Hartill, DL
    Heltsley, BK
    Hopman, PI
    Jones, CD
    PHYSICAL REVIEW LETTERS, 2000, 84 (26) : 5940 - 5944
  • [6] Measurement of CP violation in B -> J/psi K-s(0) decays at LHCb
    Meier, F.
    NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS, 2015, 38 (04):
  • [7] Measurement of the B± production asymmetry and the CP asymmetry in B±→ J/ψK± decays
    Aaij, R.
    Adeva, B.
    Adinolfi, M.
    Ajaltouni, Z.
    Akar, S.
    Albrecht, J.
    Alessio, F.
    Alexander, M.
    Ali, S.
    Alkhazov, G.
    Cartelle, P. Alvarez
    Alves, A. A., Jr.
    Amato, S.
    Amerio, S.
    Amhis, Y.
    An, L.
    Anderlini, L.
    Andreassi, G.
    Andreotti, M.
    Andrews, J. E.
    Appleby, R. B.
    Archilli, F.
    d'Argent, P.
    Romeu, J. Arnau
    Artamonov, A.
    Artuso, M.
    Aslanides, E.
    Auriemma, G.
    Baalouch, M.
    Babuschkin, I.
    Bachmann, S.
    Back, J. J.
    Badalov, A.
    Baesso, C.
    Baker, S.
    Balagura, V.
    Baldini, W.
    Barlow, R. J.
    Barschel, C.
    Barsuk, S.
    Barter, W.
    Baryshnikov, F.
    Baszczyk, M.
    Batozskaya, V.
    Batsukh, B.
    Battista, V.
    Bay, A.
    Beaucourt, L.
    Beddow, J.
    Bedeschi, F.
    PHYSICAL REVIEW D, 2017, 95 (05)
  • [8] Direct CP violation in B → Kπ decays at Belle
    Unno, Yuuji
    SUPERSYMMETRY AND THE UNIFICATION OF FUNDAMENTAL INTERACTIONS, 2008, 1078 : 323 - +
  • [9] CP violation and measurement of the CKM parameters in B decays
    Daussy-Renaudin, Victor
    NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 2021, 312 : 156 - 160
  • [10] Direct CP violation in the angular distribution of B→J/ψK* decays -: art. no. 117502
    He, XG
    Hou, WS
    PHYSICAL REVIEW D, 1998, 58 (11)
12345