Pseudoscalar-meson octet-baryon coupling constants from two-flavor lattice QCD

Name: Pseudoscalar-meson octet-baryon coupling constants from two-flavor lattice QCD
Author: Takahashi, T. T., Erkol, Güray, Oka, M.

İsim	Pseudoscalar-meson octet-baryon coupling constants from two-flavor lattice QCD
Yazar	Takahashi, T. T., Erkol, Güray, Oka, M.
Basım Tarihi:	2010-04-01
Basım Yeri	- Elsevier
Konu	Meson-baryon coupling constant, Hyperon axial charge, Lattice QCD
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2-s2.0-77749291975
Kayıt Numarası	4252999d-a9d1-4d12-81ec-b2a6ce3df5de
Lokasyon	Natural and Mathematical Sciences
Tarih	2010-04-01
Örnek Metin	We evaluate the pseudoscalar-meson octet-baryon coupling constants and the corresponding axial charges in eight channels (πNN, πΣΣ, πΛΣ, KΛN, KΣN, πΞΞ, KΛΞ and KΣΞ) in lattice QCD with two flavors of dynamical quarks. The parameter α≡F/(F+D) representing the SU(3)-flavor symmetry is computed at each u,d-quark hopping parameter and at the flavor-SU(3) symmetric point where the three quark flavors are degenerate at the physical s-quark mass. In particular, we obtain α=0.395(6) at the SU(3) symmetric limit. The quark-mass dependences of the coupling constants are obtained by changing the u- and the d-quark masses and we find that the SU(3)-flavor symmetry is broken by only a few percent at each quark-mass we employ.
DOI	10.1016/j.nuclphysa.2010.01.215
Cilt	835

Kaynağa git Özyeğin Üniversitesi

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Özyeğin Üniversitesi

Kaynağa git

Pseudoscalar-meson octet-baryon coupling constants from two-flavor lattice QCD

Yazar Takahashi, T. T., Erkol, Güray, Oka, M.

Basım Tarihi 2010-04-01

Basım Yeri - Elsevier

Konu Meson-baryon coupling constant, Hyperon axial charge, Lattice QCD

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2-s2.0-77749291975

Kayıt Numarası 4252999d-a9d1-4d12-81ec-b2a6ce3df5de

Lokasyon Natural and Mathematical Sciences

Tarih 2010-04-01

Örnek Metin We evaluate the pseudoscalar-meson octet-baryon coupling constants and the corresponding axial charges in eight channels (πNN, πΣΣ, πΛΣ, KΛN, KΣN, πΞΞ, KΛΞ and KΣΞ) in lattice QCD with two flavors of dynamical quarks. The parameter α≡F/(F+D) representing the SU(3)-flavor symmetry is computed at each u,d-quark hopping parameter and at the flavor-SU(3) symmetric point where the three quark flavors are degenerate at the physical s-quark mass. In particular, we obtain α=0.395(6) at the SU(3) symmetric limit. The quark-mass dependences of the coupling constants are obtained by changing the u- and the d-quark masses and we find that the SU(3)-flavor symmetry is broken by only a few percent at each quark-mass we employ.

DOI 10.1016/j.nuclphysa.2010.01.215

Cilt 835