Event shape analysis of multihadronic final states in deep inelastic rapidity gap events at HERA

Collaboration, Zeus; Derrick, M.; Mattingly, M.C.K.; University, Andrews; Anselmo, F.; Amelung, C.; Campbell-Robson, S.; Arneodo, M.; Caldwell, A.; Borzemski, P.; Adamczyk, L.; Univ, Jagellonian .; Abbiendi, G.; Grabosch, H.J.; Zeuthen, DESY-IfH; Barbagli, G.; University and, Infn; Maccarrone, G.; Infn,; Bamberger, A.; Ibr, Fakulta¨t fu¨ r Physik der Universita¨t Freiburg i.Br.; Dannemann, A.; University, Hamburg; Burow, B.D.; University, Hamburg; Iowa, University of; Cloth, P.; Lich, Forschungszentrum Ju¨; University, Korea; Kartik, S.; University, Louisiana State; Tsurugai, T.; University, Meiji Gakuin; Bashkirov, V.; Institute, Moscow Engineering Physics; Bashindzhagyan, G.L.; Acosta, D.; Bailey, D.S.; Bertolin, A.; Bulmahn, J.; University, Pennsylvania State; Fisica, Dipartimento di; Hart, J.C.; Laboratory, Rutherford Appleton; Barberis, E.; Biltzinger, J.; Siegen, Fachbereich Physik der Universita¨t-Gesamthochschule; Sciences, Raymond and Beverly Sackler Faculty of Exact; Chiba, M.; Cirio, R.; Faculty of Sciences, Ii; Bailey, D.C.; Butterworth, J.M.; University, Virginia Polytechnic Inst. and State; Studies, Institute for Nuclear; Coldewey, C.; Badgett, W.F.; Bhadra, S.; University, York

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A global event shape analysis of the multihadronic final states observed in deep inelastic scattering (DIS) with a large forward rapidity gap (LRG) is performed in the range Q(2) greater than or equal to 5 GeV2, 160 GeV less than or equal to W less than or equal to 250 GeV and eta(max) less than or equal to 1.8. Particular emphasis is paid to the dependence of these variables, measured in the gamma*-pomeron rest frame, upon M-X, the mass of the hadronic final state. With increasing M-X the multihadronic final states become planar. The broadening effects exhibited by the data can be described by including a gluon density in models where the pomeron has a partonic structure or alternatively by considering a direct coupling of the pomeron to quark and gluon pairs.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11590/141333

Titolo:	Event shape analysis of multihadronic final states in deep inelastic rapidity gap events at HERA
Autori interni:	MARI, Stefano Maria
Data di pubblicazione:	1997
Abstract:	A global event shape analysis of the multihadronic final states observed in deep inelastic scattering (DIS) with a large forward rapidity gap (LRG) is performed in the range Q(2) greater than or equal to 5 GeV2, 160 GeV less than or equal to W less than or equal to 250 GeV and eta(max) less than or equal to 1.8. Particular emphasis is paid to the dependence of these variables, measured in the gamma*-pomeron rest frame, upon M-X, the mass of the hadronic final state. With increasing M-X the multihadronic final states become planar. The broadening effects exhibited by the data can be described by including a gluon density in models where the pomeron has a partonic structure or alternatively by considering a direct coupling of the pomeron to quark and gluon pairs.
Handle:	http://hdl.handle.net/11590/141333
Appare nelle tipologie:	1.1 Articolo in rivista

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