Determination of the CP violation angle γ using B→D*V modes

被引:51
作者
Sinha, N [1 ]
Sinha, R [1 ]
机构
[1] Inst Math Sci, Madras 600113, Tamil Nadu, India
关键词
D O I
10.1103/PhysRevLett.80.3706
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We propose a method to determine the angle gamma = arg(V-ub), using the B --> D*V (V = K*,p) modes. The D* is considered to decay to D pi. An interference of the B --> (DV)-V-*0 and B --> (D) over bar(*0)V amplitudes is achieved by looking at a common final state f, in the subsequent decays of D-0/(D) over bar(0). A detailed analysis of the angular distribution allows determination, not only of gamma and \V-ub\ but also of all of the hadronic amplitudes and strong phases involved. No prior knowledge of doubly Cabibbo suppressed branching ratios of D are required. Large CP violating asymmetries (similar to 30% for gamma = 30 degrees) are possible if (D) over bar(0) --> f is doubly Cabibbo suppressed, while D-0 --> f is Cabibbo allowed, for decays of B+ or B-0.
引用
收藏
页码:3706 / 3709
页数:4
相关论文
共 23 条
  • [1] ATWOOD D, 1997, PHYS REV LETT, V78, P3217
  • [2] Particles and field .1. Review of particle physics
    Barnett, RM
    Carone, CD
    Groom, DE
    Trippe, TG
    Wohl, CG
    Armstrong, B
    Gee, PS
    Wagman, GS
    James, F
    Mangano, M
    Monig, K
    Montanet, L
    Feng, JL
    Murayama, H
    Hernandez, JJ
    Manohar, A
    AguilarBenitez, M
    Caso, C
    Crawford, RL
    Roos, M
    Tornqvist, NA
    Hayes, KG
    Hagiwara, K
    Nakamura, K
    Tanabashi, M
    Olive, K
    Honscheid, K
    Burchat, PR
    Shrock, RE
    Eidelman, S
    Schindler, RH
    Gurtu, A
    Hikasa, K
    Conforto, G
    Workman, RL
    Grab, C
    Amsler, C
    [J]. PHYSICAL REVIEW D, 1996, 54 (01) : 1 - +
  • [3] BARNETT RM, 1996, PHYS REV D, V54, P507
  • [4] EXCLUSIVE NONLEPTONIC DECAYS OF D-MESONS, DS-MESONS AND B-MESONS
    BAUER, M
    STECH, B
    WIRBEL, M
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (01): : 103 - 115
  • [5] Nonleptonic decays and lifetimes of charm and beauty particles
    Browder, TE
    Honscheid, K
    Pedrini, D
    [J]. ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1996, 46 : 395 - 469
  • [6] BURAS AJ, IN PRESS HEAVY FLAVO, V2
  • [7] BURAS AJ, HEPPH9704376
  • [8] UNITARY SYMMETRY AND LEPTONIC DECAYS
    CABIBBO, N
    [J]. PHYSICAL REVIEW LETTERS, 1963, 10 (12) : 531 - &
  • [9] NEW APPROACH TO THE SEARCH FOR NEUTRINOLESS DOUBLE BETA-DECAY
    RAGHAVAN, RS
    [J]. PHYSICAL REVIEW LETTERS, 1994, 72 (10) : 1411 - 1414
  • [10] CP VIOLATION WITH BEAUTIFUL BARYONS
    DUNIETZ, I
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1992, 56 (01): : 129 - 143