Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Fariborz, Amir H."'
Publikováno v:
Eur. Phys. J. C (2022) 82:1133
The generalized linear sigma model for mixing among two- and four-quark components of scalar (and psedudosclar) mesons below and above 1 GeV is applied to the $\pi\eta$ channel in which the isovector scalars $a_0(980)$ and $a_0(1450)$ are probed. In
Externí odkaz:
http://arxiv.org/abs/2212.12062
Autor:
Fariborz, Amir H.
The fundamental equation describing the rotational dynamics of a rigid body is ${\vec \tau}=d{\vec L} / dt$ which is a straightforward consequence of the Newton's second law of motion and is only valid in an inertial coordinate system. While this equ
Externí odkaz:
http://arxiv.org/abs/2203.05150
Autor:
Fariborz, Amir H., Lyukova, Mars
We present a detailed study of the interactions among scalar and pseudoscalar mesons and glueballs within the framework of the generalized linear sigma model in the SU(3) flavor limit. The basis of our approach is to develop a global understanding of
Externí odkaz:
http://arxiv.org/abs/2107.12266
Chiral Lagrangian mesonic fields can be connected to QCD quark operators via matrix operators containing scale factors. These scale factor matrices are shown to be constrained by chiral symmetry, resulting in a universal scale factor for each Chiral
Externí odkaz:
http://arxiv.org/abs/2012.06520
Publikováno v:
Mod. Phys. Lett. A35 (2020) 2050173
Scale factor matrices relating mesonic fields in chiral Lagrangians and quark-level operators of QCD sum-rules are shown to be constrained by chiral symmetry, resulting in universal scale factors for each chiral nonet. Built upon this interplay betwe
Externí odkaz:
http://arxiv.org/abs/1911.04945
Properties of the scale-factor matrices forming a bridge between the mesonic fields of chiral Lagrangians and quark-level structures of QCD sum-rules are reviewed. The scale-factor matrices combined with mixing angles provide a physical projection of
Externí odkaz:
http://arxiv.org/abs/1909.07243
Akademický článek
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Within the framework of the generalized linear sigma model with glueballs recently proposed [1,2], we study the schematic spectroscopy of scalar and pseudoscalar mesons in the SU(3) flavor limit and explore their quark and glue contents. In this fram
Externí odkaz:
http://arxiv.org/abs/1810.10624
Autor:
Fariborz, Amir H., Jora, Renata
We study the interaction of scalar glueball with quark-antiquark and four-quark spinless meson fields within the framework of a generalized linear sigma model in which the trace anomaly of QCD is exactly realized. To determine the pure scalar gluebal
Externí odkaz:
http://arxiv.org/abs/1807.10928
Autor:
Fariborz, Amir H., Jora, Renata
Publikováno v:
Phys. Rev. D 98, 094032 (2018)
We present a generalized linear sigma model that includes both scalar and pseudoscalar glueballs in addition to a quark-antiquark as well as a four-quark chiral nonet. Utilizing the axial and trace anomalies of QCD (at the effective mesonic level), w
Externí odkaz:
http://arxiv.org/abs/1807.10927