Journal
PHYSICS LETTERS B
Volume 742, Issue -, Pages 330-334Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2015.01.042
Keywords
COMPASS; Z(c)(3900); Photoproduction; Tetraquark
Funding
- CERN management
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A search for the exclusive production of the Z(c)(+/-)(3900) hadron by virtual photons has been performed in the channel Z(c)(+/-)(3900). J/Psi pi(+/-). The data cover the range from 7GeV to 19GeV in the centre-of- mass energy of the photon-nucleon system. The full set of the COMPASS data set collected with a muon beam between 2002 and 2011 has been used. An upper limit for the ratio BR(Z(c)(+/-)(3900)-> J/Psi pi(+/-)) x sigma(gamma N) -> Z(c)(+/-)(3900) N/sigma gamma N -> J/Psi N 3.7 x10(-3) has been established at the confidence level of90%. (C) 2015 The Authors. Published by Elsevier B.V.
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