Wilson coefficients and four-quark condensates in QCD sum rules for medium modifications of D mesons

被引：19
作者：
Buchheim, T. [1 ,2 ]
Hilger, T. [3 ]
Kaempfer, B. [1 ,2 ]
机构：
[1] Helmholtz Zentrum Dresden Rossendorf, D-01314 Dresden, Germany
[2] Tech Univ Dresden, Inst Theoret Phys, D-01062 Dresden, Germany
[3] Graz Univ, Inst Phys, NAWI Graz, A-8010 Graz, Austria
来源：
PHYSICAL REVIEW C | 2015年 / 91卷 / 01期
基金：
奥地利科学基金会;
关键词：
FINITE-TEMPERATURE; CHIRAL-SYMMETRY; DECAY CONSTANTS; NUCLEAR-MATTER; VECTOR-MESONS; QUARK MASSES; HEAVY QUARK; RHO-MESON; RESTORATION; HADRONS;
D O I：
10.1103/PhysRevC.91.015205
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Wilson coefficients of light four-quark condensates in QCD sum rules are evaluated for pseudoscalar D mesons, thus pushing the sum rules toward mass dimension 6. In contrast to the situation for (q) over barq mesons, the impact of the four-quark condensates for vacuum as well as in-medium situations is found to be rather small within the Borel window used in previous analyses. The complete four-quark condensate contributions enable us to identify candidates for an order parameter of spontaneous chiral symmetry breaking and/or restoration as well as to evaluate stability criteria of operator product expansions.
引用
收藏
页数：13
相关论文
共 54 条
  • [1] ALIEV TM, 1983, SOV J NUCL PHYS+, V38, P936
  • [2] D mesons at finite temperature and density in the Polyakov-Nambu-Jona-Lasinio model
    Blaschke, D.
    Costa, P.
    Kalinovsky, Yu. L.
    [J]. PHYSICAL REVIEW D, 2012, 85 (03):
  • [3] Confinement contains condensates
    Brodsky, Stanley J.
    Roberts, Craig D.
    Shrock, Robert
    Tandy, Peter C.
    [J]. PHYSICAL REVIEW C, 2012, 85 (06):
  • [4] In-medium QCD sum rules for D mesons: A projection method for higher order contributions
    Buchheim, T.
    Hilger, T.
    Kaempfer, B.
    [J]. FAIRNESS 2013: FAIR NEXT GENERATION OF SCIENTISTS 2013, 2014, 503
  • [5] Buchheim T., P QCD 14 17 HIGH EN
  • [6] QCD sum rules and applications to nuclear physics
    Cohen, TD
    Furnstahl, RJ
    Griegel, DK
    Jin, XM
    [J]. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 35, 1995, 35 : 221 - 298
  • [7] Friman B, 2011, LECT NOTES PHYS, V814, P1, DOI 10.1007/978-3-642-13293-3
  • [8] QCD SUM-RULES FOR NUCLEONS IN NUCLEAR-MATTER
    FURNSTAHL, RJ
    GRIEGEL, DK
    COHEN, TD
    [J]. PHYSICAL REVIEW C, 1992, 46 (04): : 1507 - 1527
  • [9] FINITE-TEMPERATURE QCD SUM-RULES REEXAMINED - RHO-MESONS, OMEGA-MESONS AND A(1)-MESONS
    HATSUDA, T
    KOIKE, Y
    LEE, SH
    [J]. NUCLEAR PHYSICS B, 1993, 394 (01) : 221 - 264
  • [10] QCD SUM-RULES FOR VECTOR-MESONS IN THE NUCLEAR MEDIUM
    HATSUDA, T
    LEE, SH
    [J]. PHYSICAL REVIEW C, 1992, 46 (01): : R34 - R38
123456