NDLI: Investigation of ΛQ and ΞQ baryons in the heavy quark-light diquark picture

Content Provider	Springer Nature Link
Author	Chen, Bing Wei, Ke Wei Zhang, Ailin
Copyright Year	2015
Abstract	We apply a new mass formula which is derived analytically in the relativistic flux tube model to the mass spectra of Λ Q and Ξ Q (Q = c or b quark) baryons. To this end, the heavy quark-light diquark picture is employed. We find that all masses of the available Λ Q and Ξ Q states can be understood well. The assignments to these states do not appear to contradict the strong decay properties. Λ c (2760)+ and Ξ c (2980) are assigned to the first radial excitations with J P = 1/2+. Λ c (2940)+ and Ξ c (3123) might be the 2P states. The Λ c (2880)+ and Ξ c(3080) are the good 1D candidates with J P = 5/2+. Λ c (3055) is likely to be a 1D state with J P =3/2+. Λ b (5912)0 and Λ b (5920)0 favor the 1P assignments with J P = 1/2− and 3/2−, respectively. We propose a search for the $$\tilde \Lambda _{c2} (5/2^ - )$$ state which can help to distinguish the diquark and three-body schemes.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	14346001
Journal	The European Physical Journal A - Hadrons and Nuclei
Volume Number	51
Issue Number	7
e-ISSN	1434601X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-07-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nuclear Physics, Heavy Ions, Hadrons Particle and Nuclear Physics Nuclear Fusion
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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