QCD trace anomaly

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

Journal Article | Published | English

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Abstract
In this brief report we compare the predictions of a recent next-to-next-to-leading order hard-thermal-loop perturbation theory (HTLpt) calculation of the QCD trace anomaly to available lattice data. We focus on the trace anomaly scaled by T(2) in two cases: N(f) = 0 and N(f) = 3. When using the canonical value of mu = 2 pi T for the renormalization scale, we find that for Yang-Mills theory (N(f) = 0) agreement between HTLpt and lattice data for the T(2)-scaled trace anomaly begins at temperatures on the order of 8T(c), while when including quarks (N(f) = 3) agreement begins already at temperatures above 2T(c). In both cases we find that at very high temperatures the T(2)-scaled trace anomaly increases with temperature in accordance with the predictions of HTLpt.
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Cite this

Andersen JO, Leganger LE, Strickland M, Su N. QCD trace anomaly. Physical Review D. 2011;84(8).
Andersen, J. O., Leganger, L. E., Strickland, M., & Su, N. (2011). QCD trace anomaly. Physical Review D, 84(8).
Andersen, J. O., Leganger, L. E., Strickland, M., and Su, N. (2011). QCD trace anomaly. Physical Review D 84.
Andersen, J.O., et al., 2011. QCD trace anomaly. Physical Review D, 84(8).
J.O. Andersen, et al., “QCD trace anomaly”, Physical Review D, vol. 84, 2011.
Andersen, J.O., Leganger, L.E., Strickland, M., Su, N.: QCD trace anomaly. Physical Review D. 84, (2011).
Andersen, Jens O., Leganger, Lars E., Strickland, Michael, and Su, Nan. “QCD trace anomaly”. Physical Review D 84.8 (2011).
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