High-mass dijet cross sections in photoproduction at HERA

摘要

Dijet differential cross sections for the reaction e(-)p --> e(+) jet + jet + X in the photoproduction regime have been measured with the ZEUS detector at HERA using an integrated luminosity of 42.7 pb(-1), The cross sections are given for photon-proton centre-of-mass energies in the range 134 e+ Z0X) < 5.9 pb. Upper limits on the photoproduction of new heavy resonances decaying into two jets are also presented for masses in the range between 60 GeV and 155 GeV (C) 2002 Elsevier Science B.V. All rights reserved. References: 80