Rapidity gaps between jets in proton-antiproton collisions at √s = 1.8 TeV.

Persistent Link:
http://hdl.handle.net/10150/186974
Title:
Rapidity gaps between jets in proton-antiproton collisions at √s = 1.8 TeV.
Author:
May, Brent Joseph.
Issue Date:
1994
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Experimental results are presented from a search for events with a rapidity gap between high transverse momentum jets produced by the Fermilab Tevatron proton anti-proton Collider at √s = 1.8 TeV. The DO detector is used to obtain a sample of events with no observed particles between the two highest transverse energy jets above 30 GeV using an experimental rapidity gap definition. This sample is used to measure the fraction of events with an observed rapidity gap between the jets as a function of the pseudorapidity separation between the jet cone edges (Δη(c)). The observed rapidity gap fraction is in qualitative agreement with theoretical expectations for color-singlet exchange, but uncertainties in the color-octet contribution and the background from particle detection inefficiencies make this association difficult. The measured gap fraction is used to place an upper limit at the 95% confidence level of 1.1 x 10⁻² on the fraction of events with no particles between the jets for events with Δη(c) > 3. This limit puts a significant constraint on the cross section for rapidity gap production between jets (color-singlet exchange) and the probability of a rapidity gap surviving spectator interactions.
Type:
text; Dissertation-Reproduction (electronic)
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Physics; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Forden, Geoffrey

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleRapidity gaps between jets in proton-antiproton collisions at √s = 1.8 TeV.en_US
dc.creatorMay, Brent Joseph.en_US
dc.contributor.authorMay, Brent Joseph.en_US
dc.date.issued1994en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractExperimental results are presented from a search for events with a rapidity gap between high transverse momentum jets produced by the Fermilab Tevatron proton anti-proton Collider at √s = 1.8 TeV. The DO detector is used to obtain a sample of events with no observed particles between the two highest transverse energy jets above 30 GeV using an experimental rapidity gap definition. This sample is used to measure the fraction of events with an observed rapidity gap between the jets as a function of the pseudorapidity separation between the jet cone edges (Δη(c)). The observed rapidity gap fraction is in qualitative agreement with theoretical expectations for color-singlet exchange, but uncertainties in the color-octet contribution and the background from particle detection inefficiencies make this association difficult. The measured gap fraction is used to place an upper limit at the 95% confidence level of 1.1 x 10⁻² on the fraction of events with no particles between the jets for events with Δη(c) > 3. This limit puts a significant constraint on the cross section for rapidity gap production between jets (color-singlet exchange) and the probability of a rapidity gap surviving spectator interactions.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplinePhysicsen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairForden, Geoffreyen_US
dc.identifier.proquest9517584en_US
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