Role of scalar mesons in the beam asymmetry of pp¯ and ΛΛ¯ photoproduction at JLab

Thomas Gutsche, Serguei Kuleshov, Valery E. Lyubovitskij, and Igor T. Obukhovsky
Phys. Rev. D 96, 054024 – Published 25 September 2017

Abstract

We suggest a description of the beam asymmetry in pp¯ and ΛΛ¯ photoproduction off the proton γ+ppp¯+p and γ+pΛΛ¯+p, which takes into account the contribution of the scalar mesons f0(1370), f0(1500), and f0(1710). These scalars are considered as mixed states of a glueball and nonstrange and strange quarkonia in the framework based on the use of effective hadronic Lagrangians. Present results can be used to guide the possible search for this reaction by the GlueX Collaboration at JLab. Also, we did an estimate of contribution of heavier scalar meson states f0(2020), f0(2100), and f0(2200).

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  • Received 22 May 2017

DOI:https://doi.org/10.1103/PhysRevD.96.054024

© 2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Particles & Fields

Authors & Affiliations

Thomas Gutsche1, Serguei Kuleshov2, Valery E. Lyubovitskij1,2,3,4, and Igor T. Obukhovsky5

  • 1Institut für Theoretische Physik, Universität Tübingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
  • 2Departamento de Física y Centro Científico Tecnológico de Valparaíso (CCTVal), Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
  • 3Department of Physics, Tomsk State University, 634050 Tomsk, Russia
  • 4Laboratory of Particle Physics, Tomsk Polytechnic University, 634050 Tomsk, Russia
  • 5Institute of Nuclear Physics, Moscow State University, 119991 Moscow, Russia

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Issue

Vol. 96, Iss. 5 — 1 September 2017

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