Electromagnetic structure of the {rho} meson in the light-front quark model
- Department of Physics, Kyungpook National University, Daegu, 702-701 (Korea, Republic of)
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States)
We investigate the elastic form factors of the {rho} meson in the light-front quark model (LFQM). With the phenomenologically accessible meson vertices including the one obtained by the Melosh transformation frequently used in the LFQM, we find that only the helicity 0{yields}0 matrix element of the plus current receives the zero-mode contribution. We quantify the zero-mode contribution in the helicity 0{yields}0 amplitude using the angular condition of spin-1 system.After taking care of the zero-mode issue, we obtain the magnetic ({mu})and quadrupole (Q) moments of the {rho} meson as {mu}=1.92 and Q=0.43, respectively, in the LFQM consistent with the Melosh transformation and compare our results with other available theoretical predictions.
- OSTI ID:
- 20705122
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 70, Issue 5; Other Information: DOI: 10.1103/PhysRevD.70.053015; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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