Abstract
The Λ c (2940)+ is studied in a constituent quark model. The model describes the deuteron as an NN bound state and the X(3872) as a DD* molecule. We studied the meson baryon sector and found a D*N bound state consistent with the data available for the Λ c (2940)+. The existence of this bound state in this picture implies the existence of a \({\bar B^* N}\) partner that we predict as a Λ b (6248). Different decay channels for this state are also studied.
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References
Aubert B. et al.: Observation of a charmed baryon decaying to D 0 p at a mass near 2.94 GeV/c 2. Phys. Rev. Lett. 98, 012001 (2007)
Mizuk R. et al.: Experimental constraints on the spin and parity of the Λ c (2880)+. Phys. Rev. Lett. 98, 262001 (2007)
Capstick S., Isgur N.: Baryons in a relativized quark model with chromodynamics. Phys. Rev. D 34, 2809 (1986)
Chen C., Chen X.L., Liu X., Deng W.Z., Zhu S.L.: Strong decays of charmed baryons. Phys. Rev. D 75, 094017 (2007)
Zhong X.H., Zhao Q.: Charmed baryon strong decays in a chiral quark model. Phys. Rev. D 77, 074008 (2008)
He, X.G., Li, X.Q., Liu, X., Zeng, X.Q.: Λ c (2940)+: a possible molecular state? Eur. Phys. J. C Part. Fields 51, 883 (2007). doi:10.1140/epjc/s10052-007-0347-y
Dong Y., Faessler A., Gutsche T., Lyubovitskij V.E.: Strong two-body decays of the Λ c (2940)+ in a hadronic molecule picture. Phys. Rev. D 81, 014006 (2010)
García Recio C., Magas V.K., Mizutani T., Nieves J., Ramos A., Salcedo L.L., Tolos L.: s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry. Phys. Rev. D 79, 054004 (2009)
Fernandez F., Valcarce A., Straub U., Faessler A.: The nucleon-nucleon interaction in terms of quark degrees of freedom. J. Phys. G 19, 2013 (1993)
Entem D.R., Fernandez F., Valcarce A.: Chiral quark model of the NN system within a Lippmann-Schwinger resonating group method. Phys. Rev. C 62, 034002 (2000)
Adlarson, P., et al.: Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance? Phys. Rev. Lett. 106, 242302 (2011)
Mota R., Valcarce A., Fernandez F., Entem D., Garcilazo H.: Nonlocal calculation for nonstrange dibaryons and tribaryons. Phys. Rev. C 65, 034006 (2002)
Entem D., Fernandez F.: The \({\bar N}\) interaction in a constituent quark model: Baryonium states and protonium level shifts. Phys. Rev. C 73, 045214 (2006)
Ortega P., Segovia J., Entem D., Fernandez F.: Coupled channel approach to the structure of the X(3872). Phys. Rev. D 81, 054023 (2010)
Vijande J., Fernandez F., Valcarce A.: Constituent quark model study of the meson spectra. J. Phys. G 31, 481 (2005)
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Ortega, P.G., Entem, D.R. & Fernández, F. The Λ c (2940)+ as a D*N Molecule in a Constituent Quark Model and a Possible Λ b (6248). Few-Body Syst 54, 1101–1104 (2013). https://doi.org/10.1007/s00601-012-0569-x
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DOI: https://doi.org/10.1007/s00601-012-0569-x