Title

Ξ∗ photoproduction from threshold to W=3.3 GeV

Authors

J. T. Goetz, Ohio University
K. Hicks, Ohio University
M. C. Kunkel, Forschungszentrum Jülich (FZJ)
J. W. Price, CSU Dominguez Hills
D. P. Weygand, Christopher Newport University
S. Adhikari, Florida International University
S. Anefalos Pereira, INFN, Laboratori Nazionali Di Frascati
M. Battaglieri, Istituto Nazionale di Fisica Nucleare, Sezione di Genova
I. Bedlinskiy, Alikhanov Institute for Theoretical and Experimental Physics
A. S. Biselli, Fairfield University
S. Boiarinov, Thomas Jefferson National Accelerator Facility
C. Bookwalter, Florida State University
W. J. Briscoe, The George Washington University
W. K. Brooks, Universidad Técnica Federico Santa María
V. D. Burkert, Thomas Jefferson National Accelerator Facility
F. Cao, University of Connecticut
D. S. Carman, Thomas Jefferson National Accelerator Facility
A. Celentano, Istituto Nazionale di Fisica Nucleare, Sezione di Genova
S. Chandavar, Ohio University
P. Chatagnon, Institut de Physique Nucléaire Orsay
T. Chetry, Ohio University
G. Ciullo, University of Ferrara
P. L. Cole, Idaho State University
M. Contalbrigo, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
V. Crede, Florida State University
A. D'Angelo, Istituto Nazionale di Fisica Nucleare - INFN
N. Dashyan, Yerevan Physics Institute
R. De Vita, Istituto Nazionale di Fisica Nucleare, Sezione di Genova
M. Defurne, Institut de Recherche sur les Lois Fondamentales de l'Univers
A. Deur, Thomas Jefferson National Accelerator Facility
S. Diehl, University of Connecticut
C. Djalali, Ohio University

Document Type

Article

Publication Date

12-27-2018

Abstract

© 2018 American Physical Society. The doubly strange Ξ baryons provide an effective way to study a puzzle called the missing-baryons problem where both quark models and lattice gauge theory predict more baryon excited states than are seen experimentally. However, few of these excited states have been observed with any certainty. Here, high-mass Ξ∗ states have been searched for in photoproduction with the detector of the CLAS Collaboration, and upper limits for the total cross sections have been established from threshold to W=3.3GeV. In addition, the total cross sections of the ground-state Ξ-(1320) and first excited state Ξ-(1530) are presented, extending significantly the center-of-mass energy range of previous data.

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