Sea quark contributions to nucleon electromagnetic form factors with the nonlocal chiral effective Lagrangian

被引：0
|
作者：
杨明炀 [1 ,2 ]
王平 [1 ,3 ]
机构：
[1] Institute of High Energy Physics CAS
[2] College of Physics Sciences University of Chinese Academy of Sciences
[3] Theoretical Physics Center for Science Facilities CAS
来源：
Chinese Physics C | 2020年 / 05期
关键词：
electromagnetic form factors; nonlocal Lagrangian; chiral symmetry;
D O I：
暂无
中图分类号：
O572.33 [介子];
学科分类号：
摘要：
The sea quark contributions to the nucleon electromagnetic form factors of the up, down and strange quarks are studied with the nonlocal chiral effective Lagrangian. Both octet and decuplet intermediate states are included in the one loop calculations. Compared with the strange quark form factors, although their signs are the same,the absolute value of the light quark form factors are much larger. For both the electric and magnetic form factors, the contribution of the d quark is larger than of the u quark. The current lattice simulations of the light sea quark form factors are in between our results for the u and d quarks.
引用
收藏
页码：4 / 10
页数：7
相关论文
共 50 条
  • [31] Nucleon and pion electromagnetic structure and constituent quark form factors
    Cardarelli, F
    Pace, E
    Salme, G
    Simula, S
    FEW-BODY PROBLEMS IN PHYSICS '95, 1996, : 345 - 349
  • [32] Nucleon electromagnetic form factors in a quark–gluon core model
    Xian-Qiao Yu
    The European Physical Journal C, 2009, 64 : 529 - 532
  • [33] Nucleon electromagnetic form factors in a constituent-quark model
    Demetriou, P
    Boffi, S
    Radici, A
    Wagenbrunn, RF
    CONDENSED MATTER THEORIES, VOL 15, 2000, 15 : 253 - 261
  • [34] Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
    Alvarado, Fernando
    An, Di
    Alvarez-Ruso, Luis
    Leupold, Stefan
    PHYSICAL REVIEW D, 2023, 108 (11)
  • [35] Nucleon form factors in dispersively improved chiral effective field theory. II. Electromagnetic form factors
    Alarcon, J. M.
    Weiss, C.
    PHYSICAL REVIEW C, 2018, 97 (05)
  • [36] Electromagnetic form factors of the nucleon in effective field theory
    Bauer, T.
    Bernauer, J. C.
    Scherer, S.
    PHYSICAL REVIEW C, 2012, 86 (06):
  • [37] Up- and Down-Quark Contributions to the Nucleon Form Factors
    Qattan, I. A.
    Arrington, J.
    INPC 2013 - INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, VOL. 2, 2014, 66
  • [38] Chiral effective Lagrangian and quark masses
    Wittig, H
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2003, 119 : 59 - 70
  • [39] Accurate nucleon electromagnetic form factors from dispersively improved chiral effective field theory
    Alarcon, J. M.
    Weiss, C.
    PHYSICS LETTERS B, 2018, 784 : 373 - 377
  • [40] Strange form factors of the nucleon in the chiral quark-soliton model
    A. Silva
    D. Urbano
    H.-C. Kim
    K. Goeke
    The European Physical Journal A - Hadrons and Nuclei, 2005, 24 : 93 - 96
12345