The effects of coloured quark entropy on the bag pressure

Miller D, Tawfik AN (2004)
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 30(6): 731-738.

Journal Article | Published | English

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We study the effects of the ground state entropy of coloured quarks upon the bag pressure at low temperatures. The vacuum expectation values of the quark and gluon fields are used to express the interactions in the QCD ground state in the limit of low temperatures and chemical potentials. Apparently, the inclusion of this entropy in the equation of state provides the hadron constituents with an additional heat which causes a decrease in the effective latent heat inside the hadronic bag and consequently decreases the non-perturbative bag pressure. We have considered two types of baryonic bags, Delta and Omega(-). In both cases we have found that the bag pressure decreases with the temperature. On the other hand, when the coloured quark ground state entropy is not considered, the bag pressure as conventionally believed remains constant for finite temperature.
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Miller D, Tawfik AN. The effects of coloured quark entropy on the bag pressure. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS. 2004;30(6):731-738.
Miller, D., & Tawfik, A. N. (2004). The effects of coloured quark entropy on the bag pressure. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 30(6), 731-738.
Miller, D., and Tawfik, A. N. (2004). The effects of coloured quark entropy on the bag pressure. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 30, 731-738.
Miller, D., & Tawfik, A.N., 2004. The effects of coloured quark entropy on the bag pressure. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 30(6), p 731-738.
D. Miller and A.N. Tawfik, “The effects of coloured quark entropy on the bag pressure”, JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, vol. 30, 2004, pp. 731-738.
Miller, D., Tawfik, A.N.: The effects of coloured quark entropy on the bag pressure. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS. 30, 731-738 (2004).
Miller, David, and Tawfik, AN. “The effects of coloured quark entropy on the bag pressure”. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 30.6 (2004): 731-738.
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