π0 → γγ in dense QCD

Maciej A. Nowak; Mannque Rho; Andreas Wirzba; Ismail Zahed

doi:10.1016/S0370-2693(00)01303-4

π⁰ → γγ in dense QCD

Maciej A. Nowak
, Mannque Rho
, Andreas Wirzba
, Ismail Zahed

Physics and Astronomy

Stony Brook University

Korea Institute for Advanced Study
Jagiellonian University in Kraków
CEA Saclay
Jülich Research Centre

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

QCD superconductors in the color-flavor-locked (CFL) phase support light excitations (generalized pions) in the form of particle-particle or hole-hole excitations. We analyze the generalized process π⁰ → γγ in the weak coupling limit and show that it is related to the recently suggested Wess-Zumino-Witten (WZW) term. In dense QCD, the radiative decay of the generalized pion is constrained by geometry and vanishes at large density.

Original language	English
Pages (from-to)	85-90
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	497
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(00)01303-4
State	Published - Jan 4 2001

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title = "π0 → γγ in dense QCD",

abstract = "QCD superconductors in the color-flavor-locked (CFL) phase support light excitations (generalized pions) in the form of particle-particle or hole-hole excitations. We analyze the generalized process π0 → γγ in the weak coupling limit and show that it is related to the recently suggested Wess-Zumino-Witten (WZW) term. In dense QCD, the radiative decay of the generalized pion is constrained by geometry and vanishes at large density.",

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T1 - π0 → γγ in dense QCD

AU - Nowak, Maciej A.

AU - Rho, Mannque

AU - Wirzba, Andreas

AU - Zahed, Ismail

PY - 2001/1/4

Y1 - 2001/1/4

N2 - QCD superconductors in the color-flavor-locked (CFL) phase support light excitations (generalized pions) in the form of particle-particle or hole-hole excitations. We analyze the generalized process π0 → γγ in the weak coupling limit and show that it is related to the recently suggested Wess-Zumino-Witten (WZW) term. In dense QCD, the radiative decay of the generalized pion is constrained by geometry and vanishes at large density.

AB - QCD superconductors in the color-flavor-locked (CFL) phase support light excitations (generalized pions) in the form of particle-particle or hole-hole excitations. We analyze the generalized process π0 → γγ in the weak coupling limit and show that it is related to the recently suggested Wess-Zumino-Witten (WZW) term. In dense QCD, the radiative decay of the generalized pion is constrained by geometry and vanishes at large density.

UR - https://www.scopus.com/pages/publications/0035804325

U2 - 10.1016/S0370-2693(00)01303-4

DO - 10.1016/S0370-2693(00)01303-4

M3 - Article

SN - 0370-2693

VL - 497

SP - 85

EP - 90

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

π⁰ → γγ in dense QCD

Abstract

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