Production of exclusive dijets in diffractive deep inelastic e(+/-) p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 372 pb(-1). The measurement was performed for gamma*-p centre-of-mass energies in the range 90 < W < 250 GeV and for photon virtualities Q(2) > 25 GeV2. Energy flows around the jet axis are presented. The cross section is presented as a function of beta and phi, where beta = x/x(P), x is the Bjorken variable and xIP is the proton fractional longitudinal momentum loss. The angle f is defined by the gamma*-dijet plane and the gamma*-e(+/-) plane in the rest frame of the diffractive final state. The f cross section is measured in bins of beta. The results are compared to predictions from models based on different assumptions about the nature of the diffractive exchange.
Production of exclusive dijets in diffractive deep inelastic scattering at HERA
CAPUA, Marcella;SCHIOPPA, Marco;TASSI, Enrico;
2016-01-01
Abstract
Production of exclusive dijets in diffractive deep inelastic e(+/-) p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 372 pb(-1). The measurement was performed for gamma*-p centre-of-mass energies in the range 90 < W < 250 GeV and for photon virtualities Q(2) > 25 GeV2. Energy flows around the jet axis are presented. The cross section is presented as a function of beta and phi, where beta = x/x(P), x is the Bjorken variable and xIP is the proton fractional longitudinal momentum loss. The angle f is defined by the gamma*-dijet plane and the gamma*-e(+/-) plane in the rest frame of the diffractive final state. The f cross section is measured in bins of beta. The results are compared to predictions from models based on different assumptions about the nature of the diffractive exchange.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
