Meson-nucleon form factors in a chiral soliton model

In this talk, we report a recent investigation on the energy-momentum tensor form factors of the nucleon in nuclear medium, based on the framework of the in-medium modified chiral soliton model. The model was constructed by taking into account the influence of the surrounding environment to the mesonic sector (π-, ρ- and ω-meson properties). We briefly discuss the results of the energy-momentum tensor form factors.

Download Full-text

Form factors in the projected chiral soliton model with vector mesons

Physics Letters B ◽

10.1016/0370-2693(90)90883-8 ◽

1990 ◽

Vol 247 (2-3) ◽

pp. 210-214 ◽

Cited By ~ 4

Author(s):

P. Alberto ◽

E. Ruiz Arriola ◽

J.N. Urbano ◽

K. Goeke

Keyword(s):

Form Factors ◽

Vector Mesons ◽

Soliton Model ◽

Chiral Soliton ◽

Chiral Soliton Model

Download Full-text

PROPERTIES OF THE NUCLEON AND THE DELTA(1232) IN THE πρωa1(f1) CHIRAL SOLITON MODEL

Modern Physics Letters A ◽

10.1142/s0217732394000769 ◽

1994 ◽

Vol 09 (10) ◽

pp. 935-943 ◽

Cited By ~ 2

Author(s):

L. ZHANG ◽

NIMAI C. MUKHOPADHYAY

Keyword(s):

Form Factors ◽

Leading Order ◽

Soliton Model ◽

Chiral Soliton ◽

Chiral Soliton Model

We investigate the physics of the nucleon and the Δ(1232), in particular, the diagonal and off-diagonal electroweak form factors, in the framework of a πρω a 1(f1) chiral soliton model, consistent with QCD. The effective meson Lagrangian reproduces known meson properties, and yields phenomenological improvements over the πρω chiral soliton model for all the leading order baryon observables, in the [Formula: see text] expansion.

Download Full-text

Pion mass dependence of the nucleon form factors of the energy-momentum tensor in the chiral quark-soliton model

Physical Review C ◽

10.1103/physrevc.75.055207 ◽

2007 ◽

Vol 75 (5) ◽

Cited By ~ 29

Author(s):

K. Goeke ◽

J. Grabis ◽

J. Ossmann ◽

P. Schweitzer ◽

A. Silva ◽

...

Keyword(s):

Energy Momentum Tensor ◽

Pion Mass ◽

Form Factors ◽

Momentum Tensor ◽

Mass Dependence ◽

Soliton Model ◽

Nucleon Form Factors ◽

Pion Mass Dependence

Download Full-text

NUCLEON STRUCTURE FUNCTIONS FROM A CHIRAL SOLITON IN THE INFINITE MOMENTUM FRAME

International Journal of Modern Physics A ◽

10.1142/s0217751x98002511 ◽

1998 ◽

Vol 13 (32) ◽

pp. 5519-5534 ◽

Cited By ~ 11

Author(s):

L. GAMBERG ◽

H. REINHARDT ◽

H. WEIGEL

Keyword(s):

Valence Quark ◽

Structure Functions ◽

Nucleon Structure ◽

Translational Invariance ◽

Soliton Model ◽

Lorentz Contraction ◽

Collective Coordinates ◽

Chiral Soliton ◽

Chiral Soliton Model ◽

Frame Dependence

We study the frame dependence of nucleon structure functions obtained within a chiral soliton model for the nucleon. Employing light cone coordinates and introducing collective coordinates together with their conjugate momenta, translational invariance of the solitonic quark fields (which describe the nucleon as a localized object) is restored. This formulation allows us to perform a Lorentz boost to the infinite momentum frame of the nucleon. The major result is that the Lorentz contraction associated with this boost causes the leading twist contribution to the structure functions to properly vanish when the Bjorken variable x exceeds unity. Furthermore we demonstrate that for structure functions calculated in the valence quark approximation to the Nambu–Jona-Lasinio chiral soliton model the Lorentz contraction also has significant effects on the structure functions for moderate values of the Bjorken variable x.

Download Full-text