scholarly journals Resonant contributions to three-body B(s)→[D(*),D¯(*)]K+K− decays in the perturbative QCD approach

2020 ◽  
Vol 102 (5) ◽  
Author(s):  
Ya Li ◽  
Da-Cheng Yan ◽  
Zhou Rui ◽  
Lan Liu ◽  
Yue-Tong Zhang ◽  
...  
Keyword(s):  
Perturbative Qcd ◽  
Three Body

scholarly journals Resonances ϕ(1020) and ϕ(1680) contributions for the three-body decays B+ → Ds+KK̄

2020 ◽  
Vol 35 (26) ◽  
pp. 2050164
Author(s):  
Ai-Jun Ma
Keyword(s):  
Perturbative Qcd ◽  
Branching Fraction ◽  
Branching Ratios ◽  
Three Body

We study the resonances [Formula: see text] and [Formula: see text] contributions for the three-body decays [Formula: see text] in the perturbative QCD approach. The branching ratios for [Formula: see text] and [Formula: see text] are predicted to be [Formula: see text] and [Formula: see text], respectively. The decay [Formula: see text] with [Formula: see text] decays into [Formula: see text] or [Formula: see text], has the branching fraction [Formula: see text], which is about [Formula: see text] of the result for [Formula: see text].

scholarly journals Three-body nonleptonic B decays in perturbative QCD

2003 ◽  
Vol 561 (3-4) ◽  
pp. 258-265 ◽  
Author(s):  
Chuan-Hung Chen ◽  
Hsiang-Nan Li
Keyword(s):  
Perturbative Qcd ◽  
B Decays ◽  
Three Body

scholarly journals AGK CUTTING RULES AND PERTURBATIVE QCD

1996 ◽  
Vol 11 (04) ◽  
pp. 613-654 ◽  
Author(s):  
D. TRELEANI
Keyword(s):  
Perturbative Qcd ◽  
Cross Section ◽  
Cross Sections ◽  
Parton Model ◽  
Single Scattering ◽  
High Energy ◽  
The Self ◽  
Energy Hadron ◽  
Three Body ◽  
Soft Interactions

The purpose of this article is to describe a few features of semihard interactions, in high energy nuclear collisions, that are better understood with the help of the AGK cutting rules, and of the probabilistic picture of the interaction which follows. In the first part of the article the cutting rules are discussed for the simplest component of the forward three-body parton amplitude in the large s fixed t limit. The case considered corresponds to the term — at the lowest order in the coupling constant and with vacuum quantum number exchange in both t channels — of the amplitude which describes the interaction of a high energy quark with the two target quarks. The different leading cuts of the amplitude are shown to be proportional to one another with the same weights of the cutting rules derived in the context of multi-Pomeron exchange. The probabilistic picture of the multiple interactions, which originates from the cutting rules, and the self-shadowing cross sections are then discussed. The second part of the article deals with the semihard interactions. The semihard cross section in high energy nucleus–nucleus collisions is represented as a self-shadowing cross section, and a feature which is pointed out is that the single scattering factorized expression of the perturbative QCD parton model holds at any order in the multiparton correlations, the relation being the analog of the AGK cancellation for the average number of soft interactions in high energy hadron–nucleus collisions. Finally, an infrared problem which finds a solution within the self-shadowing representation of the semihard cross section is discussed.

scholarly journals Three-body decays B→ϕ(ρ)Kγ in perturbative QCD approach

2018 ◽  
Vol 97 (3) ◽  
Author(s):  
Chao Wang ◽  
Jing-Bin Liu ◽  
Hsiang-nan Li ◽  
Cai-Dian Lü
Keyword(s):  
Perturbative Qcd ◽  
Three Body

scholarly journals Resonance contributions $$\phi (1020, 1680)\rightarrow K\bar{K}$$ for the three-body decays $$B\rightarrow K\bar{K} h$$

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Ying-Ying Fan ◽  
Wen-Fei Wang
Keyword(s):  
Perturbative Qcd ◽  
Intermediate State ◽  
Branching Fractions ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Intermediate States ◽  
Three Body

AbstractWe study the contributions for the $$K^+K^-$$ K + K - and $$K^0\bar{K}^0$$ K 0 K ¯ 0 originating from the intermediate states $$\phi (1020)$$ ϕ ( 1020 ) and $$\phi (1680)$$ ϕ ( 1680 ) in the charmless three-body decays $$B\rightarrow K\bar{K} h$$ B → K K ¯ h , with $$h=(\pi , K)$$ h = ( π , K ) , in the perturbative QCD approach. The subprocesses $$\phi (1020,1680)\rightarrow K\bar{K}$$ ϕ ( 1020 , 1680 ) → K K ¯ are introduced into the distribution amplitudes of $$K\bar{K}$$ K K ¯ system via the kaon electromagnetic form factors with the coefficients taken from the fitted results. The predictions of the branching fractions for the decays $$B\rightarrow \phi (1680)h$$ B → ϕ ( 1680 ) h with the intermediate state $$\phi (1680)$$ ϕ ( 1680 ) decays into $$K^+K^-$$ K + K - or $$K^0\bar{K}^0$$ K 0 K ¯ 0 are about $$6{-}8\%$$ 6 - 8 % of the corresponding results for the quasi-two-body decays $$B\rightarrow \phi (1020)h \rightarrow K^+ K^- h$$ B → ϕ ( 1020 ) h → K + K - h in this work.

The three body decaysB+→π+π−π+in perturbative QCD approach

2014 ◽  
Vol 930 ◽  
pp. 117-130 ◽  
Author(s):  
Hui-sheng Wang ◽  
Shao-min Liu ◽  
Jing Cao ◽  
Xin Liu ◽  
Zhen-jun Xiao
Keyword(s):  
Perturbative Qcd ◽  
Three Body

scholarly journals Global determination of two-meson distribution amplitudes from three-body B decays in the perturbative QCD approach

2021 ◽  
Vol 104 (9) ◽  
Author(s):  
Ya Li ◽  
Da-Cheng Yan ◽  
Jun Hua ◽  
Zhou Rui ◽  
Hsiang-nan Li
Keyword(s):  
Perturbative Qcd ◽  
B Decays ◽  
Three Body

THREE-BODY DECAY FUNCTIONS IN QCD JETS

1986 ◽  
Vol 01 (05) ◽  
pp. 345-353 ◽  
Author(s):  
KIYOSHI KATO ◽  
TOMO MUNEHISA
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Perturbative Qcd ◽  
Order Effect ◽  
Perturbative Expansion ◽  
Leading Order ◽  
Three Body

Jet evolution based on perturbative QCD is studied taking into account the next-to-leading-order effect. The 3-body decay functions are required to be positive to generate the jet evolution in a Monte Carlo simulation and their magnitude is to be small enough to assure the perturbative expansion. We present a description of the angular ordering which enables us to obtain decay functions for gluon→3 gluons and quark→ quark+2 gluons which are positive and of sizable magnitude.

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