QCD trace anomaly

被引：35

作者：

Andersen, Jens O. ^{[1
]}

Leganger, Lars E. ^{[1
]}

Strickland, Michael ^{[2
,3
,4
]}

Su, Nan ^{[1
,5
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

[2] Gettysburg Coll, Dept Phys, Gettysburg, PA 17325 USA

[3] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93117 USA

[4] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[5] Univ Bielefeld, Fac Phys, D-33615 Bielefeld, Germany

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 08期

关键词：

QUARK-GLUON PLASMA; 3-LOOP FREE-ENERGY; PERSPECTIVE; CONDENSATE; MATTER;

D O I：

10.1103/PhysRevD.84.087703

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：5

共 60 条

[1] Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC:: Experimental evaluation by the PHENIX Collaboration [J].

Adcox, K ;

Adler, SS ;

Afanasiev, S ;

Aidala, C ;

Ajitanand, NN ;

Akiba, Y ;

Al-Jamel, A ;

Alexander, J ;

Amirikas, R ;

Aoki, K ;

Aphecetche, L ;

Arai, Y ;

Armendariz, R ;

Aronson, SH ;

Averbeck, R ;

Awes, TC ;

Azmoun, R ;

Babintsev, V ;

Baldisseri, A ;

Barish, KN ;

Barnes, PD ;

Barrette, J ;

Bassalleck, B ;

Bathe, S ;

Batsouli, S ;

Baublis, V ;

Bauer, F ;

Bazilevsky, A ;

Belikov, S ;

Bellaiche, FG ;

Belyaev, ST ;

Bennett, MJ ;

Berdnikov, Y ;

Bhagavatula, S ;

Bjorndal, MT ;

Boissevain, JG ;

Borel, H ;

Borenstein, S ;

Botelho, S ;

Brooks, ML ;

Brown, DS ;

Bruner, N ;

Bucher, D ;

Buesching, H ;

Bumazhnov, V ;

Bunce, G ;

Burward-Hoy, JM ;

Butsyk, S ;

Camard, X ;

Carey, TA .

NUCLEAR PHYSICS A, 2005, 757 (1-2) :184-283

[2] A SELF-CONSISTENT INCLUSION OF MAGNETIC SCREENING FOR THE QUARK-GLUON PLASMA [J].

ALEXANIAN, G ;

NAIR, VP .

PHYSICS LETTERS B, 1995, 352 (3-4) :435-439

[3] Three-loop HTL QCD thermodynamics [J].

Andersen, Jens O. ;

Leganger, Lars E. ;

Strickland, Michael ;

Su, Nan .

JOURNAL OF HIGH ENERGY PHYSICS, 2011, (08)

[4] NNLO hard-thermal-loop thermodynamics for QCD [J].

Andersen, Jens O. ;

Leganger, Lars E. ;

Strickland, Michael ;

Su, Nan .

PHYSICS LETTERS B, 2011, 696 (05) :468-472

[5] Three-loop HTL gluon thermodynamics at intermediate coupling [J].

Andersen, Jens O. ;

Strickland, Michael ;

Su, Nan .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (08)

[6] Gluon Thermodynamics at Intermediate Coupling [J].

Andersen, Jens O. ;

Strickland, Michael ;

Su, Nan .

PHYSICAL REVIEW LETTERS, 2010, 104 (12)

[7] Resummation in hot field theories [J].

Andersen, JO ;

Strickland, M .

ANNALS OF PHYSICS, 2005, 317 (02) :281-353

[8] Two-loop hard-thermal-loop thermodynamics with quarks [J].

Andersen, JO ;

Petitgirard, E ;

Strickland, M .

PHYSICAL REVIEW D, 2004, 70 (04)

[9] Hard-thermal-loop perturbation theory to two loops [J].

Andersen, JO ;

Braaten, E ;

Petitgirard, E ;

Strickland, M .

PHYSICAL REVIEW D, 2002, 66 (08)

[10] Screened perturbation theory to three loops [J].

Andersen, JO ;

Braaten, E ;

Strickland, M .

PHYSICAL REVIEW D, 2001, 63 (10)

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