Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion
We present the first study of the masses and decay constants of the pseudoscalar D mesons in two flavors lattice QCD with domain-wall fermion. The gauge ensembles are generated on the 243×48 lattice with the extent Ns=16 in the fifth dimension, and the plaquette gauge action at β=6.10, for three sea...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2014-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269314005279 |
| _version_ | 1819205836489097216 |
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| author | Wen-Ping Chen Yu-Chih Chen Ting-Wai Chiu Han-Yi Chou Tian-Shin Guu Tung-Han Hsieh |
| author_facet | Wen-Ping Chen Yu-Chih Chen Ting-Wai Chiu Han-Yi Chou Tian-Shin Guu Tung-Han Hsieh |
| author_sort | Wen-Ping Chen |
| collection | DOAJ |
| description | We present the first study of the masses and decay constants of the pseudoscalar D mesons in two flavors lattice QCD with domain-wall fermion. The gauge ensembles are generated on the 243×48 lattice with the extent Ns=16 in the fifth dimension, and the plaquette gauge action at β=6.10, for three sea-quark masses with corresponding pion masses in the range 260–475 MeV. We compute the point-to-point quark propagators, and measure the time-correlation functions of the pseudoscalar and vector mesons. The inverse lattice spacing is determined by the Wilson flow, while the strange and the charm quark masses by the masses of the vector mesons ϕ(1020) and J/ψ(3097) respectively. Using heavy meson chiral perturbation theory (HMChPT) to extrapolate to the physical pion mass, we obtain fD=202.3(2.2)(2.6) MeV and fDs=258.7(1.1)(2.9) MeV. |
| first_indexed | 2024-12-23T04:58:02Z |
| format | Article |
| id | doaj.art-f0e36282c5b147cc9d034b00a0f02e77 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-23T04:58:02Z |
| publishDate | 2014-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-f0e36282c5b147cc9d034b00a0f02e772022-12-21T17:59:18ZengElsevierPhysics Letters B0370-26931873-24452014-09-01736C23123610.1016/j.physletb.2014.07.025Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermionWen-Ping Chen0Yu-Chih Chen1Ting-Wai Chiu2Han-Yi Chou3Tian-Shin Guu4Tung-Han Hsieh5Physics Department, National Taiwan University, Taipei 10617, TaiwanPhysics Department, National Taiwan University, Taipei 10617, TaiwanPhysics Department, National Taiwan University, Taipei 10617, TaiwanPhysics Department, National Taiwan University, Taipei 10617, TaiwanCenter for Science Education, National Ilan University, I-Lan 260, TaiwanResearch Center for Applied Sciences, Academia Sinica, Taipei 115, TaiwanWe present the first study of the masses and decay constants of the pseudoscalar D mesons in two flavors lattice QCD with domain-wall fermion. The gauge ensembles are generated on the 243×48 lattice with the extent Ns=16 in the fifth dimension, and the plaquette gauge action at β=6.10, for three sea-quark masses with corresponding pion masses in the range 260–475 MeV. We compute the point-to-point quark propagators, and measure the time-correlation functions of the pseudoscalar and vector mesons. The inverse lattice spacing is determined by the Wilson flow, while the strange and the charm quark masses by the masses of the vector mesons ϕ(1020) and J/ψ(3097) respectively. Using heavy meson chiral perturbation theory (HMChPT) to extrapolate to the physical pion mass, we obtain fD=202.3(2.2)(2.6) MeV and fDs=258.7(1.1)(2.9) MeV.http://www.sciencedirect.com/science/article/pii/S0370269314005279 |
| spellingShingle | Wen-Ping Chen Yu-Chih Chen Ting-Wai Chiu Han-Yi Chou Tian-Shin Guu Tung-Han Hsieh Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion Physics Letters B |
| title | Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion |
| title_full | Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion |
| title_fullStr | Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion |
| title_full_unstemmed | Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion |
| title_short | Decay constants of pseudoscalar D-mesons in lattice QCD with domain-wall fermion |
| title_sort | decay constants of pseudoscalar d mesons in lattice qcd with domain wall fermion |
| url | http://www.sciencedirect.com/science/article/pii/S0370269314005279 |
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