Production of Soft Dileptons in the Quark - Gluon Plasma

作者: Eric Braaten , Robert D. Pisarski , Tzu Chiang Yuan

DOI: 10.1103/PHYSREVLETT.64.2242

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摘要: The production rate for soft dileptons in a hot quark-gluon plasma is computed to leading order the QCD coupling constant through systematic resummation of perturbation theory. partial from annihilation and decay quarks antiquarks exhibits unexpected structure---sharp peaks due Van Hove singularities. These are overwhelmed by processes involving hard gluons. total larger than naive one-loop prediction orders magnitude.

参考文章(12)
L. D. McLerran, T. Toimela, Photon and dilepton emission from the quark-gluon plasma: Some general considerations Physical Review D. ,vol. 31, pp. 545- 563 ,(1985) , 10.1103/PHYSREVD.31.545
Robert D. Pisarski, Computing finite-temperature loops with ease Nuclear Physics. ,vol. 309, pp. 476- 492 ,(1988) , 10.1016/0550-3213(88)90454-3
Robert D. Pisarski, Scattering amplitudes in hot gauge theories. Physical Review Letters. ,vol. 63, pp. 1129- 1132 ,(1989) , 10.1103/PHYSREVLETT.63.1129
Eric Braaten, Robert D. Pisarski, Resummation and gauge invariance of the gluon damping rate in hot QCD. Physical Review Letters. ,vol. 64, pp. 1338- 1341 ,(1990) , 10.1103/PHYSREVLETT.64.1338
R. Baier, B. Pire, D. Schiff, Dilepton production at finite temperature: Perturbative treatment at order alpha s. Physical Review D. ,vol. 38, pp. 2814- 2832 ,(1988) , 10.1103/PHYSREVD.38.2814
T. Altherr, P. Aurenche, T. Becherrawy, On infrared and mass singularities of perturbative QCD in a quark-gluon plasma Nuclear Physics B. ,vol. 315, pp. 436- 464 ,(1989) , 10.1016/0550-3213(89)90363-5
T. Altherr, P. Aurenche, Finite temperature QCD corrections to lepton-pair formation in a quark-gluon plasma European Physical Journal A. ,vol. 45, pp. 99- 107 ,(1989) , 10.1007/BF01556676
H. Arthur Weldon, Covariant Calculations at Finite Temperature: The Relativistic Plasma Physical Review D. ,vol. 26, pp. 1394- 1407 ,(1982) , 10.1103/PHYSREVD.26.1394
H. Arthur Weldon, Dynamical holes in the quark-gluon plasma. Physical Review D. ,vol. 40, pp. 2410- 2420 ,(1989) , 10.1103/PHYSREVD.40.2410