Anomalous decay f1(1285)→π+π−γ in the Nambu–Jona-Lasinio model

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

η → π 0 γγ decay in the three - flavor Nambu – Jona - Lasinio model

We study the η → π 0 γγ decay via the quark-box diagram in the three-flavor Nambu–Jona-Lasinio model that includes the U A (1) breaking effect. We find that the η-meson mass, the η → γγ decay width and the η → π 0 γγ decay width are in good agreement with the experimental values when the U A (1) breaking is strong and the flavor SU (3) singlet-octet mixing angle θ is about zero. The photon ener...

متن کامل

Gaugino radiative decay in an anomalous U(1)′ model

We study the neutralino radiative decay into the lightest supersymmetric particle (LSP) in the framework of a minimal anomalous U(1)′ extension of the MSSM. It turns out that in a suitable decoupling limit the axino, which is present in the Stückelberg multiplet, is the LSP. We compute the branching ratio (BR) for the decay of a neutralino into an axino and a photon. We find that in a wide regi...

متن کامل

Tensor Excitations in Nambu – Jona-Lasinio Model

It is shown that in the one-flavour NJL model the vector and axial-vector quasiparticles described by the antisymmetric tensor field are generated. These excitations have tensor interactions with quarks in contrast to usual vector ones. Phenomenological applications are discussed. 1 On leave from Centre for Space Research and Technologies, Faculty of Physics, University of Sofia, 1164 Sofia, Bu...

متن کامل

Regularization in the gauged Nambu-Jona-Lasinio model.

Various prescriptions employed for regulating gauged Nambu–Jona-Lasinio type models such as the top-quark condensate model are discussed. The use of dimensional regularization maintains gauge invariance but destroys the quadratic divergence in the gap equation. If instead a simple ultraviolet momentum cutoff is used to regulate loop integrals, then gauge invariance is destroyed by a quadratical...

متن کامل

Soliton formation in the Nambu – Jona – Lasinio model

The soliton formation is considered in the Nambu-Jona-Lasinio model with local four quark interaction and various schemes to regularize the energy contribution of the polarized vacuum. No additional constraints are admitted in order to stabilize the soliton. While solitons are unstable in the proper–time regularized version the three momentum cut–off regularization apparently is more appropriat...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review D

سال: 2018

ISSN: 2470-0010,2470-0029

DOI: 10.1103/physrevd.97.074020