A new mechanism for the electromagnetic transition γ*N→N*(1535)

被引：0
|
作者：
安春生 [1 ,2 ]
邹冰松 [1 ,3 ]
机构：
[1] Institute of High Energy Physics,CAS
[2] Graduate University of Chinese Academy of Sciences
[3] Theoretical Physics Center for Science Facilities,CAS
来源：
中国物理C | 2010年 / 34卷 / 02期
基金：
中国国家自然科学基金;
关键词：
N*(1535); electromagnetic transition; helicity amplitudes;
D O I：
暂无
中图分类号：
O441 [电磁学];
学科分类号：
0809 ;
摘要：
The helicity amplitude Ap1/2 for the electromagnetic transition γ*N→N*(1535) is investigated.It is found that a new mechanism γ*→qq plays an important role in order to improve the description of this transition.On one hand,the A1p/2 is decreased to fall in the data range at the photon point Q2 = 0,while on the other hand,the new mechanism makes the function A1p/2(Q2) to decrease more slowly vs increasing Q2,as required by the data.
引用
收藏
页码：245 / 248
页数：4
相关论文
共 50 条
  • [41] Role of the N*(1535) resonance and the π-p→KY amplitudes in the OZI forbidden πN→φN reaction
    Doering, M.
    Oset, E.
    Zou, B. S.
    PHYSICAL REVIEW C, 2008, 78 (02):
  • [42] Gravitational form factors of N (1535) in QCD
    Azizi, K.
    Ozdem, U.
    NUCLEAR PHYSICS A, 2021, 1015
  • [43] Comment on "Mass and KΛ Coupling of the N*(1535)"
    Ceci, S.
    Svarc, A.
    Zauner, B.
    PHYSICAL REVIEW LETTERS, 2009, 102 (20)
  • [44] Five-quark components in N*(1535)
    An Chun-Sheng
    CHINESE PHYSICS C, 2009, 33 (12) : 1393 - 1396
  • [45] Five-quark components in N*(1535)
    安春生
    中国物理C, 2009, 33 (12) : 1393 - 1396
  • [46] The small axial charge of the N(1535)-resonance
    C. S. An
    D. O. Riska
    The European Physical Journal A, 2008, 37 : 263 - 265
  • [47] Electroproduction of the N* (1535) nucleon resonance in QCD
    Anikin, I. V.
    Braun, V. M.
    Offen, N.
    PHYSICAL REVIEW D, 2015, 92 (01):
  • [48] The small axial charge of the N(1535)-resonance
    An, C. S.
    Riska, D. O.
    EUROPEAN PHYSICAL JOURNAL A, 2008, 37 (03): : 263 - 265
  • [49] N*(1535) excitation in the α(p,p′)ηα reaction
    Yang You-Chang
    Chen Hong
    Jiang Huan-Qing
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2006, 30 : 241 - 243
  • [50] Comment on "Mass and KΛ coupling of the N* (1535)"
    Sibirtsev, A.
    Haidenbauer, J.
    Meissner, Ulf-G.
    PHYSICAL REVIEW LETTERS, 2007, 98 (03)
12345