Pentaquarks in chiral color dielectric model

Pramana ◽  
2006 ◽  
Vol 66 (4) ◽  
pp. 647-655
Author(s):  
S. C. Phatak
Keyword(s):  
Dielectric Model ◽  
Chiral Color Dielectric Model

NUCLEON IN NUCLEAR MEDIUM

2009 ◽  
Vol 18 (05n06) ◽  
pp. 1166-1175
Author(s):  
SHASHIKANT C. PHATAK
Keyword(s):  
Standard Procedure ◽  
Center Of Mass ◽  
Critical Density ◽  
Magnetic Interaction ◽  
Nuclear Medium ◽  
Mass Motion ◽  
Field Equations ◽  
Dielectric Model ◽  
Chiral Color Dielectric Model

The behavior of a nucleon in nuclear medium is discussed in Chiral Color Dielectric Model. It is assumed that the nucleons in nuclear medium produces a background dielectric field and the quark and dielectric field equations are solved self consistantly in presence of the dielectric field. A nucleon in nuclear medium is then constructed by means of standard procedure followed in chiral bag models. The corrections due to center of mass motion, color magnetic interaction and meson interaction are included. The calculations show that the nucleon becomes bigger in the medium but its mass does not change much. It is found that beyond a certian density, bound solutions in which quarks are bound in self-generated dielectric field are not possible. Thus, the calculations indicate that there is a critical density beyond which the matter consists of deconfined quarks.

scholarly journals CHARGE RADII OF HYPERONS

1995 ◽  
Vol 10 (28) ◽  
pp. 2103-2111 ◽  
Author(s):  
SARIRA SAHU
Keyword(s):  
Charge Distribution ◽  
Root Mean Square ◽  
Model Prediction ◽  
Skyrme Model ◽  
Mean Square ◽  
Bag Model ◽  
Charge Radii ◽  
Dielectric Model ◽  
Chiral Color Dielectric Model

The momentum projected SU(3) chiral color dielectric model (CCDM) is employed to calculate the charge root mean square radii and charge distribution of hyperons. The gluonic and pionic contributions are treated perturbatively. We compare our result with that of Skyrme, MIT bag and cloudy bag model. The charge distribution of Λ in CCDM is similar to that of Skyrme model prediction.

scholarly journals Pion-nucleon scattering and the πNNcoupling constant in the chiral color dielectric model

1995 ◽  
Vol 51 (4) ◽  
pp. 2207-2217 ◽  
Author(s):  
Dinghui Lu ◽  
Shashikant C. Phatak ◽  
Rubin H. Landau
Keyword(s):  
Nucleon Scattering ◽  
Dielectric Model ◽  
Pion Nucleon ◽  
Chiral Color Dielectric Model

Applications of the chiral color dielectric model to low energy meson-baryon interactions

1995 ◽  
Vol 585 (1-2) ◽  
pp. 381-382
Author(s):  
Dinghui Lu ◽  
Shashikant C. Phatak ◽  
Rubin H. Landau
Keyword(s):  
Low Energy ◽  
Dielectric Model ◽  
Chiral Color Dielectric Model

scholarly journals Meson-baryon form factors in the chiral color dielectric model

1998 ◽  
Vol 58 (4) ◽  
pp. 2383-2392 ◽  
Author(s):  
S. C. Phatak
Keyword(s):  
Form Factors ◽  
Dielectric Model ◽  
Chiral Color Dielectric Model

Chiral color-dielectric model with perturbative quantum pions and gluons

1993 ◽  
Vol 47 (4) ◽  
pp. 1791-1800 ◽  
Author(s):  
L. R. Dodd ◽  
D. E. Driscoll
Keyword(s):  
Dielectric Model ◽  
Perturbative Quantum ◽  
Chiral Color Dielectric Model

Dihyperons in chiral color dielectric model

Pramana ◽  
2003 ◽  
Vol 61 (5) ◽  
pp. 1009-1013 ◽  
Author(s):  
S. C. Phatak
Keyword(s):  
Dielectric Model ◽  
Chiral Color Dielectric Model

scholarly journals Three-flavor quark matter in the chiral color dielectric model

1995 ◽  
Vol 52 (4) ◽  
pp. 2195-2202 ◽  
Author(s):  
Sanjay K. Ghosh ◽  
S. C. Phatak
Keyword(s):  
Quark Matter ◽  
Dielectric Model ◽  
Chiral Color Dielectric Model

scholarly journals Quark matter in the chiral color-dielectric model

1995 ◽  
Vol 588 (4) ◽  
pp. 801-818 ◽  
Author(s):  
Alessandro Drago ◽  
Manuel Fiolhais ◽  
Ubaldo Tambini
Keyword(s):  
Quark Matter ◽  
Dielectric Model ◽  
Chiral Color Dielectric Model
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