Meson loop effects on the pion electromagnetic form factor
作者： F. Carvalho , F. O. Durães , F. S. Navarra , M. Nielsen
DOI: 10.1103/PHYSREVC.69.065202
关键词:
摘要: In this work we calculate the meson loop effects on pion electromagnetic form factor and perform a comparison with experimental data. We show that, even though cloud is not only nonperturbative process to be considered, its contribution significant.
harvard.edu
sci-hub.se 参考文章(37)
A. Szczurek, J. Speth, Perturbative QCD versus pion exchange and hadronic FSI effects in the γγ→π+π− reaction Nuclear Physics. ,vol. 728, pp. 182- 202 ,(2003) , 10.1016/J.NUCLPHYSA.2003.08.018
T. Frederico, H. W. L. Naus, J. P. B. C. de Melo, Pion Eletromagnetic Current in the Ligth-Cone Formalism Physical Review C. ,(1997) , 10.1103/PHYSREVC.59.2278
JPBC De Melo, T Frederico, E Pace, G Salme, Pair term in the Electromagnetic Current within the Front-Form Dynamics: Spin-0 Case Nuclear Physics. ,vol. 707, pp. 399- 424 ,(2002) , 10.1016/S0375-9474(02)00990-9
Anthony William Thomas, Ding-Hui Lu, Shin Nan Yang, Scaling law for the electromagnetic form factors of the proton Journal of Physics G. ,vol. 26, ,(2000) , 10.1088/0954-3899/26/6/101
H. Forkel, F.S. Navarra, M. Nielsen, K∗ and nucleon strangeness Nuclear Physics A. ,vol. 680, pp. 179- 183 ,(2001) , 10.1016/S0375-9474(00)00413-9
F. Carvalho, F. O. Durães, F. S. Navarra, M. Nielsen, Testing the meson cloud model in inclusive meson production Physical Review D. ,vol. 60, pp. 094015- ,(1999) , 10.1103/PHYSREVD.60.094015
P. Faccioli, A. Schwenk, E. V. Shuryak, Instanton contribution to the pion electromagnetic form factor at Q 2 > 1 GeV 2 Physical Review D. ,vol. 67, pp. 113009- ,(2003) , 10.1103/PHYSREVD.67.113009
Hilmar Forkel, Marina Nielsen, The electromagnetic pion form factor and instantons Physics Letters B. ,vol. 345, pp. 55- 60 ,(1995) , 10.1016/0370-2693(94)01596-5
H. C. Dönges, M. Schäfer, U. Mosel, Microscopic model of the timelike electromagnetic form factor of the nucleon. Physical Review C. ,vol. 51, pp. 950- 968 ,(1995) , 10.1103/PHYSREVC.51.950
R. Jacob, P. Kroll, The Pion form-factor: Sudakov suppressions and intrinsic transverse momentum Physics Letters B. ,vol. 315, pp. 463- 470 ,(1993) , 10.1016/0370-2693(93)91642-Z