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<math><mrow><msub><mrow><mi>Λ</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>(</mo><mn>2910</mn><mo>)</mo></mrow></math> and <math><mrow><msub><mrow><mi>Λ</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>(</mo><mn>2940</mn><mo>)</mo></mrow></math> as conventional baryons dressed with the <math><msup><mi>D</mi><mo>*</mo></msup><mi>N</mi></math> channel

Authors :
Zhang, Zi-Le
Liu, Zhan-Wei
Luo, Si-Qiang
Wang, Fu-Lai
Wang, Bo
Xu, Hao
Source :
Physical Review
Publication Year :
2023
Publisher :
APS, 2023.

Abstract

In this work, we treat Λc(2910)+ and Λc(2940)+ as the conventional udc cores dressed with the D*N channel. We provide a possible interpretation to both Λc(2910)+ and Λc(2940)+ within the same framework. In the study, we consider not only the effects between the conventional triquark core and the D*N channel but also the D*N−D*N interactions. The mass of the Λc state with JP=1/2− is larger than that with JP=3/2− in this unquenched picture, which is very different from the prediction of the conventional quenched quark model. Based on the mass spectrum, the spin parity of Λc(2940)+ is more likely to be 1/2−, while Λc(2910)+ prefers 3/2−. We look forward to the future experiments that can test our results with more precise experimental data.

Details

Language :
English
Database :
OpenAIRE
Journal :
Physical Review
Accession number :
edsair.od......3000..541a399dcf8436a04cd32b92b4ee427d