Mass anomalous dimension in SU(2) with two adjoint fermions

被引:92
|
作者
Bursa, Francis [1 ]
Del Debbio, Luigi [2 ]
Keegan, Liam [2 ]
Pica, Claudio [2 ]
Pickup, Thomas [3 ]
机构
[1] Univ Cambridge Jesus College, Cambridge CB5 8BL, England
[2] Univ Edinburgh, Sch Phys & Astron, SUPA, Edinburgh EH9 3JZ, Midlothian, Scotland
[3] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England
来源
PHYSICAL REVIEW D | 2010年 / 81卷 / 01期
基金
英国工程与自然科学研究理事会;
关键词
RENORMALIZATION; COMPUTATION; PHYSICS; QCD;
D O I
10.1103/PhysRevD.81.014505
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study SU(2) lattice gauge theory with two flavors of Dirac fermions in the adjoint representation. We measure the running of the coupling in the Schrodinger functional scheme and find it is consistent with existing results. We discuss how systematic errors affect the evidence for an infrared fixed point (IRFP). We present the first measurement of the running of the mass in the Schrodinger functional scheme. The anomalous dimension of the chiral condensate, which is relevant for phenomenological applications, can be easily extracted from the running of the mass, under the assumption that the theory has an IRFP. At the current level of accuracy, we can estimate 0.05 < gamma < 0.56 at the IRFP.
引用
收藏
页数:13
相关论文
共 50 条
  • [1] Mass anomalous dimension in SU(2) with six fundamental fermions
    Bursa, Francis
    Del Debbio, Luigi
    Keegan, Liam
    Pica, Claudio
    Pickup, Thomas
    PHYSICS LETTERS B, 2011, 696 (04) : 374 - 379
  • [2] Spectrum and mass anomalous dimension of SU(2) adjoint QCD with two Dirac flavors
    Bergner, Georg
    Giudice, Pietro
    Muenster, Gernot
    Montvay, Istvan
    Piemonte, Stefano
    PHYSICAL REVIEW D, 2017, 96 (03)
  • [3] Running coupling in SU(2) gauge theory with two adjoint fermions
    Rantaharju, Jarno
    Rantalaiho, Teemu
    Rummukainen, Kari
    Tuominen, Kimmo
    PHYSICAL REVIEW D, 2016, 93 (09):
  • [4] Running coupling and mass anomalous dimension of SU(3) gauge theory with two flavors of symmetric-representation fermions
    DeGrand, Thomas
    Shamir, Yigal
    Svetitsky, Benjamin
    PHYSICAL REVIEW D, 2010, 82 (05):
  • [5] Gradient flow coupling in the SU(2) gauge theory with two adjoint fermions
    Rantaharju, Jarno
    PHYSICAL REVIEW D, 2016, 93 (09)
  • [6] Evolution of the coupling constant in SU(2) lattice gauge theory with two adjoint fermions
    Hietanen, Ari J.
    Rummukainen, Kari
    Tuominen, Kimmo
    PHYSICAL REVIEW D, 2009, 80 (09):
  • [7] Conformal versus confining scenario in SU(2) with adjoint fermions
    Del Debbio, L.
    Lucini, B.
    Patella, A.
    Pica, C.
    Rago, A.
    PHYSICAL REVIEW D, 2009, 80 (07):
  • [8] SU(3) gauge theory with adjoint fermions
    Karsch, F
    Lütgemeier, H
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 : 444 - 446
  • [9] Higher representations on the lattice: Numerical simulations, SU(2) with adjoint fermions
    Del Debbio, Luigi
    Patella, Agostino
    Pica, Claudio
    PHYSICAL REVIEW D, 2010, 81 (09):
  • [10] Infrared fixed point in SU(2) gauge theory with adjoint fermions
    DeGrand, Thomas
    Shamir, Yigal
    Svetitsky, Benjamin
    PHYSICAL REVIEW D, 2011, 83 (07):