We construct the effective Lagrangian describing the light glueballs associated with the unbroken and confining SUc (2) color subgroup for the 2 flavor superconductive phase of QCD. This Lagrangian constitutes a key ingredient for understanding the nonperturbative physics of 2 flavor color superconductivity. We estimate the two photon decay process of the light glueballs using the saturation of the electromagnetic trace anomaly at the effective Lagrangian level. The present results are particularly relevant to our model of Gamma Ray Bursts based on color superconductivity in Quark Stars (R. Ouyed and F. Sannino, astro-ph/0103022). © 2001 Elsevier Science B.V.
The glueball sector of two-flavor color superconductivity / Ouyed, R.; Sannino, F.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 511:1(2001), pp. 66-73. [10.1016/S0370-2693(01)00444-0]
The glueball sector of two-flavor color superconductivity
Sannino F.
2001
Abstract
We construct the effective Lagrangian describing the light glueballs associated with the unbroken and confining SUc (2) color subgroup for the 2 flavor superconductive phase of QCD. This Lagrangian constitutes a key ingredient for understanding the nonperturbative physics of 2 flavor color superconductivity. We estimate the two photon decay process of the light glueballs using the saturation of the electromagnetic trace anomaly at the effective Lagrangian level. The present results are particularly relevant to our model of Gamma Ray Bursts based on color superconductivity in Quark Stars (R. Ouyed and F. Sannino, astro-ph/0103022). © 2001 Elsevier Science B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
