Abstract
Incorporating chiral-symmetry to the potential model of quarks with confining potentialU(r)=1/2 (1 +γ°)ar 2 with m q =10 MeV anda=2.273 fm−3 that gives a reasonable quark-core contribution to μ p , 〈r 2 〉 1/2 p andg A , the quark-pion coupling constant for quarks in a nucleon is estimated.G 2 qqπ /4π obtained between 0.4 and 0.5 is consistent with those extracted from experimental vector meson decay-width ratios by Suzuki and Bhaduri. The nucleon-pion coupling constantG 2 NNπ /4π comes out to be of the order of 13.1 in reasonable agreement with the experimental value.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Barik N and Das M 1983aPhys. Lett. B120 403
Barik N and Das M 1983bPhys. Rev. D28 2823
Barik N, Dash B K and Das M 1985Phys. Rev. D31
Brown G E, Rho M and Vento V 1979aPhys. Lett. B84 383
Brown G E and Rho M 1979bPhys. Lett. B82 177
Bartelski J, Szymacha A, Mankiewicz L and Tatur S 1983 Warsaw Preprint, IFT/4 183
Brodsky S J and Lepage G P 1981Phys. Scr. 23 945
Brodsky S J 1982Springer Tracts in Mod. Phys. 100 81
Bennard V, Brockmann R, Schaden M, Weise W and Werner E 1984Nucl. Phys. A412 349
Chodos A and Thorn C B 1975Phys. Rev. D12 2733
Chew G F 1954Phys. Rev. 94 1748, 1755
Chew G F and Low F E 1955Phys. Rev. 101 1570
de Kam J and Pirner H J 1982Nucl. Phys. A389 640
Eich E, Rein D and Rodenberg R 1983 PITHA Preprint PITHA-83/21 Aachen, Germany
Ferreira P L 1977Lett. Nuovo Cimento 20 157
Ferreira P L, Helayel J A and Zagury N 1980Nuovo Cimento A55 215
Faiman D and Hendry R W 1983Phys. Rev. 173 1720
Hendry A W 1982Ann. Phys. (NY) 140 65
Oset E, Tegen R and Weise W 1984Nucl. Phys. A
Phatak S C 1985 Preprint, IP/BBSR/83-20
Suzuki A and Bhaduri R K 1983Phys. Lett. B125 347
Theberge S, Thomas A W and Miller G A 1980Phys. Rev. D22 2238
Theberge S, Thomas A W and Miller G A 1981Phys. Rev. D23 2106(E)
Thomas A W, Theberge S and Miller G A 1981Phys. Rev. D24 216
Thomas A W 1983Adv. Nucl. Phys. 13 1
Vento V, Jun J C, Nyman E M, Rho M and Brown G E 1980Nucl. Phys. A345 413
Wick G C 1955Rev. Mod. Phys. 27 339
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Barik, N., Dash, B.K. Quark-pion coupling constant in a chiral quark model. Pramana - J Phys 24, 707–713 (1985). https://doi.org/10.1007/BF02846790
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02846790