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Electromagnetic polarisabilities of the proton in an independent particle potential model

Abstract

We consider the electric and magnetic polarisabilities of the proton including the valence quark as well as pion dressing effects in an independent quark model with an effective scalar-vector harmonic potential which renders the solvability of relativistic Dirac equations for confined quarks, and has in fact acted as an alternative to the cloudy bag model (CBM). This model which has been applied successfully to a variety of hadronic problems is also observed here to yield the electromagnetic polarisabilities of the proton satisfactorily without any free parameters. The electric and magnetic polarisabilities, including valence quark core and pion cloud effects, obtained here as anti {alpha}{sub P}=14.074.10{sup -4} fm{sup 3} and anti {beta}{sub P}=3.155.10{sup -4} fm{sup 3}, are well within the uncertainties of their experimental measurements of (10.9{+-}2.2{+-}1.4).10{sup -4} fm{sup 3} and (3.3{+-}2.2{+-}1.4).10{sup -4} fm{sup 3}, respectively and are also in agreement with other model estimations. (orig.).
Authors:
Barik, N; [1]  Dash, B K; [1]  Das, P; [2]  Panda, A R [2] 
  1. Utkal Univ., Bhubaneswer (India). P.G. Dept. of Phys.
  2. Department of Physics, Kendrapara College, Kendrapara-754211 (India)
Publication Date:
Aug 19, 1996
Product Type:
Journal Article
Reference Number:
SCA: 662390; 662410; PA: AIX-27:071544; EDB-96:161144; SN: 96001684874
Resource Relation:
Journal Name: Nuclear Physics, A; Journal Volume: 605; Journal Issue: 4; Other Information: PBD: 19 Aug 1996
Subject:
66 PHYSICS; BAG MODEL; POLARIZABILITY; PROTONS; BOUND STATE; CENTRAL POTENTIAL; DIRAC EQUATION; PARTICLE STRUCTURE; RELATIVISTIC RANGE; THEORETICAL DATA
OSTI ID:
385053
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: NUPABL; ISSN 0375-9474; TRN: NL96FF341071544
Submitting Site:
NLN
Size:
pp. 433-457
Announcement Date:
Nov 12, 1996

Citation Formats

Barik, N, Dash, B K, Das, P, and Panda, A R. Electromagnetic polarisabilities of the proton in an independent particle potential model. Netherlands: N. p., 1996. Web. doi:10.1016/0375-9474(96)00103-0.
Barik, N, Dash, B K, Das, P, & Panda, A R. Electromagnetic polarisabilities of the proton in an independent particle potential model. Netherlands. https://doi.org/10.1016/0375-9474(96)00103-0
Barik, N, Dash, B K, Das, P, and Panda, A R. 1996. "Electromagnetic polarisabilities of the proton in an independent particle potential model." Netherlands. https://doi.org/10.1016/0375-9474(96)00103-0.
@misc{etde_385053,
title = {Electromagnetic polarisabilities of the proton in an independent particle potential model}
author = {Barik, N, Dash, B K, Das, P, and Panda, A R}
abstractNote = {We consider the electric and magnetic polarisabilities of the proton including the valence quark as well as pion dressing effects in an independent quark model with an effective scalar-vector harmonic potential which renders the solvability of relativistic Dirac equations for confined quarks, and has in fact acted as an alternative to the cloudy bag model (CBM). This model which has been applied successfully to a variety of hadronic problems is also observed here to yield the electromagnetic polarisabilities of the proton satisfactorily without any free parameters. The electric and magnetic polarisabilities, including valence quark core and pion cloud effects, obtained here as anti {alpha}{sub P}=14.074.10{sup -4} fm{sup 3} and anti {beta}{sub P}=3.155.10{sup -4} fm{sup 3}, are well within the uncertainties of their experimental measurements of (10.9{+-}2.2{+-}1.4).10{sup -4} fm{sup 3} and (3.3{+-}2.2{+-}1.4).10{sup -4} fm{sup 3}, respectively and are also in agreement with other model estimations. (orig.).}
doi = {10.1016/0375-9474(96)00103-0}
journal = []
issue = {4}
volume = {605}
journal type = {AC}
place = {Netherlands}
year = {1996}
month = {Aug}
}