Revisiting B- K ∗ π and B- Kρ decays using the modified perturbative QCD approach

被引：0
|
作者：
Wang, Ru-Xuan [1 ]
Yang, Mao-Zhi [1 ]
机构：
[1] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2025年 / 85卷 / 02期
基金：
中国国家自然科学基金;
关键词：
DISTRIBUTION AMPLITUDES; WAVE-FUNCTIONS; MESON; FACTORIZATION; EXTRACTION;
D O I：
10.1140/epjc/s10052-025-13840-8
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 revisit B- K*pi and B- K rho decay processes using the modified perturbative QCD approach, which is developed based on the perturbative QCD approach with a few improvements. A critical infrared cutoff scale mu cis introduced to separate hard and soft contributions in the decay process. Hard contributions with scale mu larger than mu care calculated with perturbative QCD, and soft contributions with mu < mu(c) are described in terms of soft transition and production form factors. In addition, color-octet contributions are considered phenomenologically. The branching fractions and CP violations of B- K*pi, K rho decays are calculated. With appropriate parameter inputs, the theoretical results can be in good agreement with experimental data.
引用
收藏
页数：15
相关论文
共 50 条
  • [1] Study of B-* ρη, ρη0 decays in the modified perturbative QCD approach
    Gui, Yun-Han
    Yang, Mao-Zhi
    PHYSICAL REVIEW D, 2025, 111 (03)
  • [2] Study of CP violation in B- → K - π+π- and B- → K- σ(600) decays in the QCD factorization approach
    Qi, Jing-Juan
    Guo, Xin-Heng
    Wang, Zhen-Yang
    Zhang, Zhen-Hua
    Wang, Chao
    PHYSICAL REVIEW D, 2019, 99 (07)
  • [3] Perturbative QCD study of B->D(*) decays
    Wu, CY
    Yeh, TW
    Li, HN
    PHYSICAL REVIEW D, 1996, 53 (09): : 4982 - 4990
  • [4] Perturbative QCD study of B->D(*) decays
    Phys Rev D, 9 (4982):
  • [5] Applicability of perturbative QCD to B->D decays
    Li, HN
    PHYSICAL REVIEW D, 1995, 52 (07): : 3958 - 3965
  • [6] Search for the highly suppressed decays B- → K+π-π- and B- → K-K-π+
    Aubert, B.
    Bona, M.
    Karyotakis, Y.
    Lees, J. P.
    Poireau, V.
    Prencipe, E.
    Prudent, X.
    Tisserand, V.
    Garra Tico, J.
    Grauges, E.
    Lopez, L.
    Palano, A.
    Pappagallo, M.
    Eigen, G.
    Stugu, B.
    Sun, L.
    Abrams, G. S.
    Battaglia, M.
    Brown, D. N.
    Cahn, R. N.
    Jacobsen, R. G.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Lynch, G.
    Osipenkov, I. L.
    Ronan, M. T.
    Tackmann, K.
    Tanabe, T.
    Hawkes, C. M.
    Soni, N.
    Watson, A. T.
    Koch, H.
    Schroeder, T.
    Walker, D.
    Asgeirsson, D. J.
    Fulsom, B. G.
    Hearty, C.
    Mattison, T. S.
    McKenna, J. A.
    Barrett, M.
    Khan, A.
    Blinov, V. E.
    Bukin, A. D.
    Buzykaev, A. R.
    Druzhinin, V. P.
    Golubev, V. B.
    Onuchin, A. P.
    Serednyakov, S. I.
    Skovpen, Yu. I.
    Solodov, E. P.
    PHYSICAL REVIEW D, 2008, 78 (09):
  • [7] A heavy-to-heavy approach of B->K*gamma via perturbative QCD
    Dariescu, C
    Dariescu, MA
    PHYSICS LETTERS B, 1997, 398 (3-4) : 361 - 364
  • [8] QCD sum rule analysis of the decays B->Kl(+)l(-) and B->K*l(+)l(-)
    Colangelo, P
    De Fazio, F
    Santorelli, P
    Scrimieri, E
    PHYSICAL REVIEW D, 1996, 53 (07) : 3672 - 3686
  • [9] Branching fractions and CP violation in B-→ K+K-π- and B- → π+π-π- decays
    Cheng, Hai-Yang
    Chua, Chun-Khiang
    PHYSICAL REVIEW D, 2020, 102 (05)
  • [10] Perturbative QCD estimation of the B->K-*+gamma branching ratio
    Dariescu, MA
    Dariescu, C
    PHYSICS LETTERS B, 1996, 367 (1-4) : 349 - 352
12345