The QCD trace anomaly

Andersen JO, Leganger LE, Strickland M, Su N (2011)
Physical Review D 84(8).

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Abstract
In this brief report we compare the predictions of a recentnext-to-next-to-leading order hard-thermal-loop perturbation theory (HTLpt)calculation of the QCD trace anomaly to available lattice data. We focus on thetrace anomaly scaled by T^2 in two cases: Nf = 0 and Nf = 3. We find that forYang-Mills theory (Nf = 0) agreement between HTLpt and lattice data for theT^2-scaled trace anomaly begins at temperatures above 8 Tc while when includingquarks (Nf = 3) agreement begins already at temperatures above 2 Tc . In bothcases we find that at very high temperatures the T^2-scaled trace anomalyincreases with temperature in accordance with the predictions of HTLpt.
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Andersen JO, Leganger LE, Strickland M, Su N. The QCD trace anomaly. Physical Review D. 2011;84(8).
Andersen, J. O., Leganger, L. E., Strickland, M., & Su, N. (2011). The QCD trace anomaly. Physical Review D, 84(8).
Andersen, J. O., Leganger, L. E., Strickland, M., and Su, N. (2011). The QCD trace anomaly. Physical Review D 84.
Andersen, J.O., et al., 2011. The QCD trace anomaly. Physical Review D, 84(8).
J.O. Andersen, et al., “The QCD trace anomaly”, Physical Review D, vol. 84, 2011.
Andersen, J.O., Leganger, L.E., Strickland, M., Su, N.: The QCD trace anomaly. Physical Review D. 84, (2011).
Andersen, Jens O., Leganger, Lars E., Strickland, Michael, and Su, Nan. “The QCD trace anomaly”. Physical Review D 84.8 (2011).
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