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Research PapersNo Access

CAN THE 2-FLAVOR CHIRAL TRANSITION BE OF FIRST ORDER?

SANATAN DIGAL

Department of Physics, University of Tokyo, Tokyo 113-0033, Japan

Radiation Lab., RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan

Institute of Mathematical Sciences, C.I.T. Campus, Taramani, Chennai 600 113, India

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https://doi.org/10.1142/S0217751X0703652XCited by:0 (Source: Crossref)

Abstract

Using an effective model for the quantum chromodynamics we study the color deconfinement effects on the chiral transition. We argue that effects of the color deconfinement are important in the chiral limit. As an example we consider in detail the case of two flavors of massless quarks and find that the corresponding chiral transition can be of first order due to the effects of color deconfinement. This is contrary to the conventional expectations that 2-flavor chiral transition is of second order.

Keywords:

PACS: 12.38.Mh, 25.75.Nq

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Vol. 22, No. 13

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History

Received 22 November 2006

Revised 3 April 2007

Keywords