48 citations · 524 across the 30 of their papers we have counts for
30 papers
Determination of pion distribution amplitudes from the electromagnetic form factor with the data-driven dispersion relation
Jian Chai, Shan Cheng, Jun Hua
We study the pion electromagnetic form factor in the modulus squared dispersion relation, and do the model independent extraction of the most important nonperturbative parameters i…
Hochschild homology, trace map and -cycles
Alain Connes, Caterina Consani
In this paper we consider two spectral realizations of the zeros of the Riemann zeta function. The first one involves all non-trivial (non-real) zeros and is expressed in terms of…
Charmless two-body meson decays in perturbative QCD factorization approach
Jian Chai, Shan Cheng, Yao-hui Ju +3
The perturbative QCD (PQCD) approach based on factorization has made a great achievement for the QCD calculation of the hadronic B decays. Regulating the endpoint divergence…
helicity form factors and the exclusive weak decays
Shan Cheng, Yao-hui Ju, Qin Qin +1
The decay width of the meson is dominated by the electromagnetic mode , and it is thus the longest-lived charged vector meson. In light of this poi…
Probing isovector scalar mesons in the charmless three-body decays
Jian Chai, Shan Cheng, Ai-Jun Ma
We propose to study the multiparticle configurations of isovector scalar mesons, saying and , in the charmless three-body decays by considering the width…
The role of and their contributions in decays
Jian Chai, Shan Cheng, Wen-Fei Wang
We demonstrate the roles of and their contributions in the quasi-two-body decays () in the perturbative QCD…
The PQCD approach towards to next-to-leading order: a short review
Shan Cheng, Zhen-jun Xiao
In this short review we elaborate the significance of resummation in factorization theorem, and summarize the recent progresses in the calculations of the next-to-leading ord…
The pion light-cone distribution amplitude from the pion electromagnetic form factor
Shan Cheng, Alexander Khodjamirian, Aleksey V. Rusov
We suggest to probe the pion light-cone distribution amplitude, applying a dispersion relation for the pion electromagnetic form factor. Instead of the standard dispersion relation…
form factors and the width effect from light-cone sum rules
Shan Cheng, Jian-Ming Shen
In this paper we calculate the form factors from light-cone sum rules with meson DAs. With adopting the quark-antiquark configuration of light scalar m…
Pion and Kaon form factors in the perturbative QCD approach
Shan Cheng
We present the most accurate calculation for the pion and kaon electromagnetic form factors in the framework of perturbative QCD, where the power corrections up to twist-4 of the m…
Dipion light-cone distribution amplitudes and form factors
Shan Cheng
We suggest to update the expansion coefficients of 2DAs with the distribution amplitudes of light mesons evaluated from lattice QCD, with which we revisit $\overline{B}^0 \to π^…
: A touchstone of the PQCD approach
Shan Cheng, Qin Qin
We study two rare decays, and , in the perturbative QCD approach up to the next-to-leading order of the strong coupling and the leading power of , $m_…
Rho-pion transition form factors in the factorization formulism revisited
Jun Hua, Shan Cheng, Ya-lan Zhang +1
We revisit the evaluations for the spacelike and timelike transition form factors and with the inclusion of the the next-to-leading order (NLO) QCD…
Timelike-helicity form factor from light-cone sum rules with dipion distribution amplitudes
Shan Cheng, Alexander Khodjamirian, Javier Virto
We complete the set of QCD light-cone sum rules for transition form factors, deriving a new sum rule for the timelike-helicity form factor in terms of dipion distri…
Revisiting the factorization theorem for at twist 3
Shan Cheng, Ya-lan Zhang, Jun Hua +2
We revisit the proof of the perturbative QCD factorization for the exclusive processes at the two-parton twist-3 level. It is pointed out that the residual co…
The perturbative QCD factorization of
Ya-lan Zhang, Shan Cheng, Jun Hua +1
In this paper we firstly demonstrate step by step that the factorization hypothesis is valid at the next-to-leading order (NLO) for the exclusive process by empl…
The transition form factors in the Perturbative QCD factorization approach
Ya-Lan Zhang, Shan Cheng, Jun Hua +1
In this paper, we studied the and transition processes and made the calculations for the transition form factor and the meson el…
Time-like pion electromagnetic form factors in factorization with the Next-to-leading-order twist-3 contribution
Shan Cheng, Zhen-Jun Xiao
We calculate the time-like pion electromagnetic form factor in the factorization formalism with the inclusion of the next-to-leading-order(NLO) corrections to the leading-twi…
The NLO contributions to the scalar pion form factors and the annihilation corrections to the decays
Shan Cheng, Ya-Lan Zhang, Zhen-Jun Xiao
In this paper, by employing the factorization theorem, we made the first calculation for the space-like scalar pion form factor at the leading order (LO) and t…
The perturbative QCD factorization of
Shan Cheng, Zhen-Jun Xiao
In this paper, we firstly varify that the factorization hypothesis is valid for the exclusive process at the next-to-leading order (NLO) with the collinear facto…
decays and effects of the next-to-leading order contributions
Ya-Lan Zhang, Xue-Yan Liu, Ying-Ying Fan +2
In this paper we perform a systematic study for the three decays in the perturbative QCD (pQCD) factorization approach with the inclusion of all curr…
decays and effects of the next-to-leading order contribution
Jing-Jing Wang, Dong-Ting Lin, Wen Sun +3
By employing the perturbative QCD(pQCD) factorization approach, we calculate the branching ratios and CP violating asymmetries of the four and decays, w…
The NLO twist-3 contributions to form factors in factorization
Shan Cheng, Ying-Ying Fan, Xin Yu +2
In this paper, we calculate the next-to-leading-order (NLO) twist-3 contribution to the form factors of transitions by employing the factorization theorem. All th…
The NLO twist-3 contribution to the pion electromagnetic form factors in factorization
Shan Cheng, Ying-Ying Fan, Zhen-Jun Xiao
In this paper, by employing the factorization theorem, we calculate firstly the next-to-leading-order (NLO) twist-3 contributions to the pion electromagnetic form factors i…