Chiral soliton model vs. pentaquark structure for 𝛩 (1540)

Pramana

R Ramachandran1 2¹ 

[1] The Inter-University Centre for Astronomy and Astrophysics, University of Pune Campus, Pune 411 007, India$$

关键词: Chiral soliton model;    pentaquarks;    QCD;    large 𝑁.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The exotic baryon 𝛩+ (1540 MeV) is visualized as an expected (iso) rotational excitation in the chiral soliton model. It is also argued as a pentaquark baryon state in a constituent quark model with strong diquark correlations. I contrast these two points of view; observe the similarities and differences between the two pictures. Collective excitation, the characteristic of chiral soliton model, points toward small mixing of representations in the wake of 𝑆𝑈 (3) breaking. In contrast, constituent quark models prefer near `ideal' mixing, similar to 𝜔 - 𝜙 mixing.

【 授权许可】

Unknown