We evaluate the cross sections for charmed hadron production from proton-proton reactions pp→pD̄0Λ c+ and pp→pD̄*0 Λc+ using a hadronic Lagrangian. With empirical coupling constants and cutoff parameters in the form factors, sum of their cross sections at center-of-mass energy of 11.5 GeV is about 1 μb and is comparable to measured inclusive cross section for charmed hadron production from proton-proton reactions. The cross section decreases to about 1 nb at 40 MeV above threshold.
Bibliographical noteFunding Information:
This paper is based on work supported by the National Science Foundation under Grant No. PHY-0098805 and the Welch Foundation under Grant No. A-1358. S.H.L. is also supported in part by the KOSEF under Grant No. 1999-2-111-005-5 and by the Korea Research Foundation under Grant No. KRF-2002-015-CP0074.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics