Λc(2940)+: A possible molecular state?
Journal
European Physical Journal C
Journal Volume
51
Journal Issue
4
Pages
883-889
Date Issued
2007
Author(s)
Abstract
A new baryonic state Λc(2940)+ has recently been discovered by the Babar collaboration in the D0p channel. Later Belle collaboration also observed this state in the ∑c(2455) 0,++π±→Λc +π+π- channel. The mass of Λc(2940)+ is just a few MeV below the sum of D *0 and p masses suggesting a possibility that this state may be a D*0p molecular state. In this paper we study whether such a molecular state can be consistent with data. We find that the molecular structure can explain data and that if Λc(2940)+ is a D*0p molecular state it is likely a 1/2- state. Several other decays modes are also suggested to further test the molecular structure of Λc +(2940). © 2007 Springer-Verlag / Società Italiana di Fisica.
Type
journal article