Meson electro-magnetic form factors in an extended Nambu-Jona-Lasinio model including heavy quark flavors

  • Based on an extended NJL model including heavy quark flavors, we calculate the form factors of pseudo-scalar and vector mesons. After taking into account the vector-meson-dominance effect, which introduces a form factor correction to the quark vector coupling vertices, the form factors and electric radii of π+ and K+ pseudo-scalar mesons in the light flavor sector fit the experimental data well. The magnetic moments of the light vector mesons ρ+ and K*+ are comparable with other theoretical calculations. The form factors in the light-heavy flavor sector are presented to compare with future experiments or other theoretical calculations.
      PCAS:
  • 加载中
  • [1] Nambu Y, Jona-Lasinio G. Phys. Rev., 1961, 122: 345
    [2] Nambu Y, Jona-Lasinio G. Phys. Rev., 1961, 124: 246
    [3] Klevansky S. Rev. Mod. Phys., 1992, 64: 649
    [4] Klimt S, Lutz M F, Vogl U, Weise W. Nucl. Phys. A, 1990, 516: 429
    [5] Vogl U, Lutz M F, Klimt S, Weise W. Nucl. Phys. A, 1990, 516: 469
    [6] Vogl U, Weise W. Prog. Part. Nucl. Phys., 1991, 27: 195
    [7] Shifman M A, Voloshin M. Sov. J. Nucl. Phys., 1987, 45: 292
    [8] Politzer H D, Wise M B. Phys. Lett. B, 1988, 208: 504
    [9] Isgur N, Wise M B. Phys. Lett. B, 1989, 232: 113
    [10] Eichten E, Hill B. R. Phys. Lett. B, 1990, 234: 511
    [11] Georgi H. Phys. Lett. B, 1990, 240: 447
    [12] Grinstein B. Nucl. Phys. B, 1990, 339: 253
    [13] Falk A F, Georgi H, Grinstein B, Wise M B. Nucl. Phys. B, 1990, 343: 1
    [14] Mannel T, Roberts W, Ryzak Z. Nucl. Phys. B, 1992, 368: 204
    [15] Ebert D, Feldmann T, Friedrich R, Reinhardt H. Nucl. Phys. B, 1995, 434: 619
    [16] GUO X Y, CHEN X L, DENG W Z. Chin. Phys. C, 2013, 37: 033102
    [17] DENG H B, CHEN X L, DENG W Z. Chin. Phys. C, 2014, 38: 013103
    [18] Amendolia S, Badelek B, Batignani G et al. Phys. Lett. B, 1984, 146: 116
    [19] Amendolia S, Batignani G, Beck G et al. Phys. Lett. B, 1986, 178: 435
    [20] Amendolia S et al. (NA7 collaboration). Nucl. Phys. B, 1986, 277: 168
    [21] Bernard V, Meissner U G. Phys. Rev. Lett., 1988, 61: 2296
    [22] Lutz M F, Weise W. Nucl. Phys. A, 1990, 518: 156
    [23] Schulze H. J. Phys. G, 1994, 20: 531
    [24] Roberts C D. Nucl. Phys. A, 1996, 605: 475
    [25] Chung P, Coester F, Polyzou W. Phys. Lett. B, 1988, 205: 545
    [26] Ito H, Buck W, Gross F. Phys. Lett. B, 1990, 248: 28
    [27] Woloshyn R, Kobos A. Phys. Rev. D, 1986, 33: 222
    [28] Nemoto Y et al. (RBC collaboration). Nucl. Phys. Proc. Suppl., 2004, 129: 299
    [29] Efremov A, Radyushkin A. Phys. Lett. B, 1980, 94: 245
    [30] Lepage G P, Brodsky S J. Phys. Lett. B, 1979, 87: 359
    [31] Rothstein I Z. Phys. Rev. D, 2004, 70: 054024
    [32] Bakulev A, Passek-Kumericki K, Schroers W, Stefanis N. Phys. Rev. D, 2004, 70: 033014
    [33] Bakker B L, Choi H M, Ji C R. Phys. Rev. D, 2002, 65: 116001
    [34] Cardarelli F, Grach I, Narodetsky I, Salme G, Simula S. Phys. Lett. B, 1995, 349: 393
    [35] de Melo J, Frederico T. Phys. Rev. C, 1997, 55: 2043
    [36] Bhagwat M, Maris P. Phys. Rev. C, 2008, 77: 025203
    [37] Lee F X, Moerschbacher S, Wilcox W. Phys. Rev. D, 2008, 78: 094502
    [38] Hedditch J, Kamleh W, Lasscock B et al. Phys. Rev. D, 2007, 75: 094504
    [39] Rubinstein H, Solomon S, Wittlich T. Nucl. Phys. B, 1995, 457: 577
    [40] Badalian A, Simonov Y. Phys. Rev. D, 2013, 87: 074012
    [41] Aliev T, Ozpineci A, Savci M. Phys. Lett. B, 2009, 678: 470
    [42] Gomez-Rocha M, Schweiger W. Phys. Rev. D, 2012, 86: 053010
    [43] Brodsky S J, Hiller J R. Phys. Rev. D, 1992, 46: 2141
    [44] Arnold R, Carlson C E, Gross F. Phys. Rev. C, 1981, 23: 363
  • 加载中

Get Citation
LUAN Yi-Long, CHEN Xiao-Lin and DENG Wei-Zhen. Meson electro-magnetic form factors in an extended Nambu-Jona-Lasinio model including heavy quark flavors[J]. Chinese Physics C, 2015, 39(11): 113103. doi: 10.1088/1674-1137/39/11/113103
LUAN Yi-Long, CHEN Xiao-Lin and DENG Wei-Zhen. Meson electro-magnetic form factors in an extended Nambu-Jona-Lasinio model including heavy quark flavors[J]. Chinese Physics C, 2015, 39(11): 113103.  doi: 10.1088/1674-1137/39/11/113103 shu
Milestone
Received: 2015-04-17
Article Metric

Article Views(762)
PDF Downloads(16)
Cited by(0)
Policy on re-use
To reuse of Open Access content published by CPC, for content published under the terms of the Creative Commons Attribution 3.0 license (“CC CY”), the users don’t need to request permission to copy, distribute and display the final published version of the article and to create derivative works, subject to appropriate attribution.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Meson electro-magnetic form factors in an extended Nambu-Jona-Lasinio model including heavy quark flavors

    Corresponding author: DENG Wei-Zhen,
  • 1. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

Abstract: Based on an extended NJL model including heavy quark flavors, we calculate the form factors of pseudo-scalar and vector mesons. After taking into account the vector-meson-dominance effect, which introduces a form factor correction to the quark vector coupling vertices, the form factors and electric radii of π+ and K+ pseudo-scalar mesons in the light flavor sector fit the experimental data well. The magnetic moments of the light vector mesons ρ+ and K*+ are comparable with other theoretical calculations. The form factors in the light-heavy flavor sector are presented to compare with future experiments or other theoretical calculations.

    HTML

Reference (44)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return