CP asymmetries in singly-Cabibbo-suppressed D decays to two pseudoscalar mesons

被引：104
|
作者：
Bhattacharya, Bhubanjyoti [1 ]
Gronau, Michael [2 ]
Rosner, Jonathan L. [3 ,4 ]
机构：
[1] Univ Montreal, Montreal, PQ H3C 3J7, Canada
[2] Technion Israel Inst Technol, Dept Phys, IL-3200 Haifa, Israel
[3] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[4] Univ Chicago, Dept Phys, Chicago, IL 60637 USA
来源：
PHYSICAL REVIEW D | 2012年 / 85卷 / 05期
基金：
美国能源部;
关键词：
D O I：
10.1103/PhysRevD.85.054014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The LHCb Collaboration has recently reported evidence for a CP asymmetry approaching the percent level in the difference between D-0 -> pi(+) pi(-) and D-0 -> K+ K-. We analyze this effect as if it is due to a penguin amplitude with the weak phase of the standard model c -> b -> u loop diagram, but with a CP-conserving enhancement as if due to the strong interactions. In such a case the magnitude and strong phase of this amplitude P-b are correlated in order to fit the observed CP asymmetry, and one may predict CP asymmetries for a number of other singly-Cabibbo-suppressed decays of charmed mesons to a pair of pseudoscalar mesons. Nonzero CP asymmetries are expected for D+ -> K+(K) over bar (0)( the most promising channel for which a nonzero CP asymmetry has not yet been reported), as well as D-0 -> pi(0) pi(0), D-s(+) -> pi(+) K-0 and D-s -> pi(0) K+. No CP asymmetry is predicted for D+ -> pi(+) pi(0) or D-0 -> K-0(K) over bar (0) in this framework.
引用
收藏
页数：9
相关论文
共 50 条
  • [1] CP asymmetries in singly-Cabibbo-suppressed D decays to two pseudoscalar mesons (vol 85, 054014, 2012)
    Bhattacharya, Bhubanjyoti
    Gronau, Michael
    Rosner, Jonathan L.
    PHYSICAL REVIEW D, 2012, 85 (07):
  • [2] New physics and CP violation in singly Cabibbo suppressed D decays
    Grossman, Yuval
    Kagan, Alexander L.
    Nir, Yosef
    PHYSICAL REVIEW D, 2007, 75 (03):
  • [3] Shift in weak phase γ due to CP asymmetries in D decays to two pseudoscalar mesons
    Bhattacharya, Bhubanjyoti
    Gronau, Michael
    London, David
    Rosner, Jonathan L.
    PHYSICAL REVIEW D, 2013, 87 (07):
  • [4] Size of direct CP violation in singly Cabibbo-suppressed D decays
    Brod, Joachim
    Kagan, Alexander L.
    Zupan, Jure
    PHYSICAL REVIEW D, 2012, 86 (01):
  • [5] Measurement of singly Cabibbo-suppressed decays D → ωππ
    Ablikim, M.
    Achasov, M. N.
    Adlarson, P.
    Ahmed, S.
    Albrecht, M.
    Amoroso, A.
    An, Q.
    Anita
    Bai, Y.
    Bakina, O.
    Ferroli, R. Baldini
    Balossino, I
    Ban, Y.
    Begzsuren, K.
    Bennett, J., V
    Berger, N.
    Bertani, M.
    Bettoni, D.
    Bianchi, F.
    Biernat, J.
    Bloms, J.
    Bortone, A.
    Boyko, I
    Briere, R. A.
    Cai, H.
    Cai, X.
    Calcaterra, A.
    Cao, G. F.
    Cao, N.
    Cetin, S. A.
    Chang, J. F.
    Chang, W. L.
    Chelkov, G.
    Chen, D. Y.
    Chen, G.
    Chen, H. S.
    Chen, M. L.
    Chen, S. J.
    Chen, X. R.
    Chen, Y. B.
    Cheng, W.
    Cibinetto, G.
    Cossio, F.
    Cui, X. F.
    Dai, H. L.
    Dai, J. P.
    Dai, X. C.
    Dbeyssi, A.
    de Boer, R. B.
    Dedovich, D.
    PHYSICAL REVIEW D, 2020, 102 (05)
  • [6] ON CABIBBO-SUPPRESSED DECAYS OF D-MESONS
    RAIKIN, MS
    URALTSEV, NG
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1981, 34 (03): : 444 - 450
  • [7] Suppressed decays of Ds+ mesons to two pseudoscalar mesons
    Adams, G. S.
    Anderson, M.
    Cummings, J. P.
    Danko, I.
    Hu, D.
    Moziak, B.
    Napolitano, J.
    He, Q.
    Insler, J.
    Muramatsu, H.
    Park, C. S.
    Thorndike, E. H.
    Yang, F.
    Artuso, M.
    Blusk, S.
    Khalil, S.
    Li, J.
    Menaa, N.
    Mountain, R.
    Nisar, S.
    Randrianarivony, K.
    Sia, R.
    Skwarnicki, T.
    Stone, S.
    Wang, J. C.
    Bonvicini, G.
    Cinabro, D.
    Dubrovin, M.
    Lincoln, A.
    Asner, D. M.
    Edwards, K. W.
    Naik, P.
    Briere, R. A.
    Ferguson, T.
    Tatishvili, G.
    Vogel, H.
    Watkins, M. E.
    Rosner, J. L.
    Adam, N. E.
    Alexander, J. P.
    Cassel, D. G.
    Duboscq, J. E.
    Ehrlich, R.
    Fields, L.
    Gibbons, L.
    Gray, R.
    Gray, S. W.
    Hartill, D. L.
    Heltsley, B. K.
    Hertz, D.
    PHYSICAL REVIEW LETTERS, 2007, 99 (19)
  • [8] New physics in singly Cabibbo-suppressed D decays
    Gronau, Michael
    PHYSICS LETTERS B, 2014, 738 : 136 - 139
  • [9] Testing for new physics in singly Cabibbo suppressed D decays
    Grossman, Yuval
    Kagan, Alexander L.
    Zupan, Jure
    PHYSICAL REVIEW D, 2012, 85 (11):
  • [10] Search for direct CP violation in singly Cabibbo-suppressed D± → K+K-π± decays
    Lees, J. P.
    Poireau, V.
    Tisserand, V.
    Garra Tico, J.
    Grauges, E.
    Palano, A.
    Eigen, G.
    Stugu, B.
    Brown, D. N.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Lynch, G.
    Koch, H.
    Schroeder, T.
    Asgeirsson, D. J.
    Hearty, C.
    Mattison, T. S.
    McKenna, J. A.
    So, R. Y.
    Khan, A.
    Blinov, V. E.
    Buzykaev, A. R.
    Druzhinin, V. P.
    Golubev, V. B.
    Kravchenko, E. A.
    Onuchin, A. P.
    Serednyakov, S. I.
    Skovpen, Yu. I.
    Solodov, E. P.
    Todyshev, K. Yu.
    Yushkov, A. N.
    Bondioli, M.
    Kirkby, D.
    Lankford, A. J.
    Mandelkern, M.
    Atmacan, H.
    Gary, J. W.
    Liu, F.
    Long, O.
    Vitug, G. M.
    Campagnari, C.
    Hong, T. M.
    Kovalskyi, D.
    Richman, J. D.
    West, C. A.
    Eisner, A. M.
    Kroseberg, J.
    Lockman, W. S.
    Martinez, A. J.
    Schumm, B. A.
    PHYSICAL REVIEW D, 2013, 87 (05):
12345