LIGHT-FRONT

作品数：23被引量：7H指数：1
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Spectroscopy of excited quarkonium states in the light-front quark model
《Chinese Physics C》2025年第2期33-46,共14页Ritwik Acharyya Satyajit Puhan Harleen Dahiya Narinder Kumar 
Narinder Kumar and Harleen Dahiya would like to acknowledge the research grant received from the Science and Engineering Research Board,Government of India under Teachers Associateship Research Excellence Award(TAR/2021/000157)。
We investigated the ground state(1S),radially excited states(2S)and(3S),and orbitally excited state(1P)for the heavy charmonia(cc)and bottomonia(bb)mesons in the light-front quark model(LFQM).The light-front wave func...
关键词：decay constants distribution amplitudes form factors parton distribution functions light-front quark model heavy charmonia and bottomonia 
Semileptonic and nonleptonic decays of B_(u,d,s)^(*) in the covariant light-front approach
《Chinese Physics C》2024年第12期20-36,共17页Si-Yang Wang You-Ya Yang Zhi-Jie Sun Hao Yang Peng Li Zhi-Qing Zhang 
partly supported by the National Natural Science Foundation of China(11347030);the Program for Science and Technology Innovation Talents in Universities of Henan Province(14HASTIT037);the Natural Science Foundation of Henan Province,China(232300420116)。
The semileptonic and nonleptonic decays of the b-flavor vector mesons B_(u,d,s)^(*) and B_(c)^(*) are investigated within the covariant light-front quark model(CLFQM).By calculating the form factors of the transitions...
关键词：b-flavor vector mesons B^(*) covariant light-front quark model branchig ratio 
Pion parton distribution function in light-front holographic QCD
《Chinese Physics C》2020年第11期163-167,共5页Lei Chang Khépani Raya Xiaobin Wang 
Supported by the Chinese Government Thousand Talents Plan for Young Professionals。
The valence-quark distribution function of the pion has been of interest for decades;particularly,the profile it should adopt when x→1(the large-x behavior)has been the subject of a long-standing debate.In the light-...
关键词：PION parton distribution function QCD 
Tensor form factors of P→P,S,V and A transitions within standard and covariant light-front approaches
《Chinese Physics C》2020年第8期46-66,共21页Qin Chang Xiao-Lin Wang Li-Ting Wang 
Supported by the National Natural Science Foundation of China(11875122);the Program for Innovative Research Team in University of Henan Province(19IRTSTHN018)。
We investigate the tensor form factors of,and A transitions within the standard light-front(SLF)and the covariant light-front(CLF)quark models(QMs).The self-consistency and Lorentz covariance of CLF QM are analyzed vi...
关键词：weak decay light-front quark model form factor 
■u,d,s*→ Du,d,s*V(V = Dd,s*-, K*-, ρ-) weak decays
《Chinese Physics C》2019年第10期38-45,共8页Qin Chang Yunyun Zhang Xiaonan Li 
Supported by the National Natural Science Foundation of China(11875122 and 11475055);the Program for Innovative Research Team in University of Henan Province(19IRTSTHN018)
Motivated by the rapid development of heavy flavor physics experiments, we study the tree-dominated nonleptonic ■u,d,s*→ Du,d,s*V(V = Dd,s*-, K*-, ρ-) decays within the factorization approach. The relevant transiti...
关键词：weak DECAY LIGHT-FRONT QUARK model heavy FLAVOR physics 
Study of the s → dv■ rare hyperon decays in the Standard Model and new physics
《Chinese Physics C》2019年第9期26-32,共7页Xiao-Hui Hu Zhen-Xing Zhao 
Supported in part by National Natural Science Foundation of China(11575110,11735010,11911530088);Natural Science Foundation of Shanghai(15DZ2272100)and Key Laboratory for Particle Physics,Astrophysics and Cosmology,Ministry of Education
FCNC processes offer important tools to test the Standard Model（SM）and to search for possible new physics.In this work,we investigate the s→dvv rare hyperon decays in SM and beyond.We find that in SM the branching ...
关键词：branching ratios RARE HYPERON DECAYS form factors LIGHT-FRONT approach new PHYSICS 
Weak decays of heavy baryons in the light-front approach
《Chinese Physics C》2018年第9期1-14,共14页Zhen-Xing Zhao 
Supported by National Natural Science Foundation of China(11575110,11655002,11735010);Natural Science Foundation of Shanghai(15DZ2272100)
In this work, we analyse semi-leptonic and non-leptonic weak decays of the heavy baryons： Λ_b,Ξ_b,Ωb and Λ_c,Ξ_c,Ωc. For non-leptonic decay modes, we study only the factorizable channels induced by the external...
关键词：heavy baryons weak decay light-front approach 
Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction被引量：1
《Chinese Physics C》2018年第7期12-23,共12页Qin Chang Xiao-Nan Li Xin-Qiang Li Fang Su 
Supported by National Natural Science Foundation of China(11475055,11675061,11435003);Q.Chang is also supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China(201317);the Program for Science and Technology Innovation Talents in Universities of Henan Province(14HASTIT036);the Excellent Youth Foundation of HNNU.X.L.is also supported in part by the self-determined research funds of CCNU from the colleges’basic research and operation of MOE(CCNU18TS029)
We calculate the decay constants of light and heavy-light pseudoscalar and vector mesons with improved soft-wall holographic wavefuntions, which take into account the effects of both quark masses and dynamical spins. ...
关键词：light-front holographic QCD holographic wavefuntions decay constant dynamical spin effect 
Deuteron electromagnetic form factors with the light-front approach
《Chinese Physics C》2017年第1期51-59,共9页孙保东 董宇兵 
Supported by National Natural Science Foundation of China(10975146,11475192);The fund provided by the Sino-German CRC110 “Symmetries and the Emergence of Structure in QCD”;FAPESP grant 2011/11973-4 for funding his visit to ICTP-SAIFR
The electromagnetic form factors and low-energy observables of the deuteron are studied with the help of the light-front approach, where the deuteron is regarded as a weakly bound state of a proton and a neutron. Both...
关键词：DEUTERON form factor light-front approach 
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