ITP OpenIR  > SCI期刊论文
Li, Xin; Chen, Ying; Meng, Guo-Zhan; Feng, Xu; Gong, Ming; He, Song; Li, Gang; Liu, Chuan; Liu, Yu-Bin; Ma, Jian-Ping; Meng, Xiang-Fei; Shen, Yan; Zhang, Jian-Bo; Li, X , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Hadron scattering in an asymmetric box
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
KeywordQuantum-field Theories Chiral Perturbation-theory Clover Wilson Action Anisotropic Lattices Volume Dependence Glueball Spectrum Energy-spectrum Particle States Quark Length
AbstractWe propose to study hadron-hadron scattering using lattice QCD in an asymmetric box which allows one to access more non-degenerate low-momentum modes for a given volume. The conventional Luscher's formula applicable in a symmetric box is modified accordingly. To illustrate the feasibility of this approach, pion-pion elastic scattering phase shifts in the I = 2, J = 0 channel are calculated within quenched approximation using improved gauge and Wilson fermion actions on anisotropic lattices in an asymmetric box. After the chiral and continuum extrapolation, we find that our quenched results for the scattering phase shifts in this channel are consistent with the experimental data when the three-momentum of the pion is below 300MeV. Agreement is also found when compared with previous theoretical results from lattice and other means. Moreover, with the usage of asymmetric volume, we are able to compute the scattering phases in the low-momentum range (pion three momentum less than about 350MeV in the center of mass frame) for over a dozen values of the pion three-momenta, much more than using the conventional symmetric box with comparable volume.
2007
ISSN1126-6708
Issue6Pages:-
Subject AreaPhysics
Indexed BySCI
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5728
CollectionSCI期刊论文
Corresponding AuthorLi, X , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Li, Xin,Chen, Ying,Meng, Guo-Zhan,et al. Hadron scattering in an asymmetric box[J]. JOURNAL OF HIGH ENERGY PHYSICS,2007(6):-.
APA Li, Xin.,Chen, Ying.,Meng, Guo-Zhan.,Feng, Xu.,Gong, Ming.,...&Li, X , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.(2007).Hadron scattering in an asymmetric box.JOURNAL OF HIGH ENERGY PHYSICS(6),-.
MLA Li, Xin,et al."Hadron scattering in an asymmetric box".JOURNAL OF HIGH ENERGY PHYSICS .6(2007):-.
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