Reaction p¯pΛ¯cΛc+ within an effective Lagrangian model

R. Shyam and H. Lenske
Phys. Rev. D 90, 014017 – Published 10 July 2014

Abstract

We study the charmed baryon production reaction p¯pΛ¯cΛc+ by using the t-channel D0 and D*0 meson-exchange diagrams within an effective Lagrangian model involving the physical hadron masses and the coupling constants determined from SU(4) flavor symmetry. The initial and final state distortion effects are accounted for by using a simple eikonal approximation-based procedure. The vertex parameters of our model have been checked by employing them to calculate the cross sections for the p¯pΛ¯Λ reaction within a similar model. We predict the Λ¯cΛc+ production cross sections in the range of 130μb for antiproton beam momenta varying between threshold and 20GeV/c. The respective roles of D0 and D*0 meson exchanges and also those of the vector and tensor components of the D*0 coupling have been investigated.

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  • Received 27 May 2014

DOI:https://doi.org/10.1103/PhysRevD.90.014017

© 2014 American Physical Society

Authors & Affiliations

R. Shyam1,* and H. Lenske2

  • 1Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700064, India and Physics Department, Indian Institute of Technology, Roorkee 247667, India
  • 2Institut für Theoretische Physik, Universität Gieseen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany

  • *radhey.shyam@saha.ac.in

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Vol. 90, Iss. 1 — 1 July 2014

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