We study chiral and UA(1) phase transition in the dilute gas approximation. A comprehensive analysis of the mass and mixing angel of η and η′ reveals that in the transition of the quark-gluon-plasma droplets to the hadrons, besides the chiral phase transition, the UA(1) phase transition also plays a significant and non-trivial role. © 1999 Elsevier Science B.V. All rights reserved.

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University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Chiral and UA(1) phase transitions in QCD: an analysis of the I=0 pseudoscalars

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

We have generalized the Pisarsky-Wilczek model of studying the U A(1) phase transition in π0, η and η′ system by incorporating the chiral phase transition. The mass-squared matrix of the neutral pseudoscalar mesons is revisited explicitly from the chiral effective action which necessitates the mixing among the unmixed states to get the physical states. The derivation of the mass spectra of the neutral pseudoscalar mesons shows that apart from their masses, the mixing angles also become temperature dependent. Based on the dilute instanton gas approximation we show that, the UA(1) phase transition along with the chiral phase transition plays an important role in the process of hadronization of the quark-gluon plasma with the quarks of three flavors. © World Scientific Publishing Company.

Modern Physics Letters A

Chiral and UA(1) phase transitions in Ï€0, Î· and Î·â€² mesons

Acta Physica Polonica B Proceedings Supplement

10.5506/aphyspolbsupp.5.747

Physical Review Letters

Signatures of the Tricritical Point in QCD

Zeitschrift für Physik C Particles and Fields

Axial-vector symmetry breaking and the mass generation of the singlet pseudoscalar meson

Annals of Physics

On the Foundations of Chiral Perturbation Theory

The axial-vector symmetry: its effective restoration at high temperature and the massive pseudoscalar mesons

Chiral and UA(1) phase transitions in QCD: An analysis of the I = 0 pseudoscalars

Journal	Data powered by TypesetPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher	Data powered by TypesetElsevier
ISSN	0370-2693
Open Access	No