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9 papers · 2 filters
Chiral Symmetry Breaking in 2+1 dimensions due to Sphalerons
Indranil Dasgupta, L. C. R. Wijewardhana
In 2+1 dimensional gauge thories with color and flavors of quarks in the fundamental representation, sphalerons, if present may lead to quark condensation and chir…
The Phenomenology of Enhanced b->sg
Alexander L. Kagan
Potential hints for New Physics enhanced b -> sg dipole operators are reviewed. Implications for inclusive kaon spectra, and corrresponding search strategies are discussed. Remarka…
The Phase Structure of an SU(N) Gauge Theory with N_f Flavors
Thomas Appelquist, Anuradha Ratnaweera, John Terning +1
We investigate the chiral phase transition in SU(N) gauge theories as the number of quark flavors, , is varied. We argue that the transition takes place at a large enough valu…
QCD Anatomy of B -> X_s gamma Decays
A. L. Kagan, M. Neubert
We present an updated next-to-leading order analysis of the B -> X_s gamma branching ratio and photon spectrum, including consistently the effects of Fermi motion in the heavy-quar…
Phase transition induced by a magnetic field
G. W. Semenoff, I. A. Shovkovy, L. C. R. Wijewardhana
The magnetic catalysis of discrete chiral symmetry breaking in the 2+1 dimensional Nambu-Jona-Lasinio model is analyzed. A particular attention is paid to a possible application of…
The next to leading order effective potential in the 2+1 dimensional Nambu-Jona-Lasinio model at finite temperature
E. P. Esposito, I. A. Shovkovy, L. C. R. Wijewardhana
The finite temperature effective potential in the 2+1 dimensional Nambu-Jona-Lasinio model is constructed up to the next to leading order in the large expansion, where is t…