Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Zhang, Ke Long"'
Publikováno v:
PRD110,074510(2024)
We perform the first lattice calculation on the semileptonic decay of $J/\psi$ using the (2+1)-flavor Wilson-clover gauge ensembles generated by CLQCD collaboration. Three gauge ensembles with different lattice spacings, from 0.0519 fm to 0.1053 fm,
Externí odkaz:
http://arxiv.org/abs/2407.13568
Multigrid solvers are the standard in modern scientific computing simulations. Domain Decomposition Aggregation-Based Algebraic Multigrid, also known as the DD-$\alpha$AMG solver, is a successful realization of an algebraic multigrid solver for latti
Externí odkaz:
http://arxiv.org/abs/2407.08092
Autor:
Meng, Yu, Dang, Jin-Long, Liu, Chuan, Liu, Zhaofeng, Shen, Tinghong, Yan, Haobo, Zhang, Ke-Long
Publikováno v:
Physical Review D 109,074511(2024)
We perform a lattice calculation on the radiative decay of $D_s^*$ using the (2+1)-flavor Wilson-clover gauge ensembles generated by CLQCD collaboration. A method allowing us to calculate the form factor with zero transfer momentum is proposed and ap
Externí odkaz:
http://arxiv.org/abs/2401.13475
Publikováno v:
Phys. Rev. D 102, 034502 (2020)
Using a recently proposed method arXiv:1910.11597 (Yu Meng et al.), we study the two-photon decay rate of $\eta_c$ using two $N_f=2$ twisted mass gauge ensembles with lattice spacings $0.067$fm and $0.085$fm. The results obtained from these two ensem
Externí odkaz:
http://arxiv.org/abs/2004.03907
Autor:
Chen, Ying, Gong, Ming, Li, Ning, Liu, Chuan, Liu, Yu-Bin, Liu, Zhaofeng, Ma, Jian-Ping, Meng, Yu, Xiong, Chao, Zhang, Ke-Long
In this exploratory study, two photon decay widths of pseudo-scalar ($\eta_c$) and scalar ($\chi_{c0}$) charmonium are computed using two ensembles of $N_f=2$ twisted mass lattice QCD gauge configurations. The simulation is performed two lattice ense
Externí odkaz:
http://arxiv.org/abs/2003.09817
Publikováno v:
Phys. Rev. D 101, 054502 (2020)
Within the framework of three-channel Ross-Shaw effective range theory, we derive the constraints among different parameters of the theory in the case of a narrow resonance close to the threshold of the third channel, which is relevant for the resona
Externí odkaz:
http://arxiv.org/abs/1911.08560
Publikováno v:
Phys. Rev. D 102, 054506 (2020)
Three photon decay rate of $J/\psi$ is studied using two $N_f=2$ twisted mass gauge ensembles with lattice spacings $a\simeq 0.085$ fm (I) and $0.067$ fm(II). Using a new method, only the correlation functions directly related to the physical decay w
Externí odkaz:
http://arxiv.org/abs/1910.11597
Autor:
ZHANG, Ke-long, LI, Hui-zhong, LIANG, Xiao-peng *, CHEN, Zhi, ZHAO, Zi-xuan, TAO, Hui, ZHOU, Xiong-wen **
Publikováno v:
In Transactions of Nonferrous Metals Society of China September 2022 32(9):2838-2851
Akademický článek
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Publikováno v:
Physical Review
Using a recently proposed method [Y. Meng, C. Liu, and K. L. Zhang, arXiv:1910.11597v3], we study the two-photon decay rate of ηc using two Nf=2 twisted mass gauge ensembles with lattice spacings 0.067 fm and 0.085 fm. The results obtained from thes