The fusion of hard and soft Pomerons: 3-jet diffractive production

Abstract We consider the central exclusive production of high $$E_T$$ ET jets $$pp\rightarrow p+(X+\mathrm{dijet})+p$$ pp→p+(X+dijet)+p . In particular we study the possible contamination of the purely exclusive signal by semi-exclusive production where no other secondaries are emitted in one hemisp...

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Main Authors: V. A. Khoze, A. D. Martin, M. G. Ryskin, A. G. Shuvaev, I. V. Surnin
Format: Article
Language:English
Published: SpringerOpen 2019-07-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-019-7120-x
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author V. A. Khoze
A. D. Martin
M. G. Ryskin
A. G. Shuvaev
I. V. Surnin
author_facet V. A. Khoze
A. D. Martin
M. G. Ryskin
A. G. Shuvaev
I. V. Surnin
author_sort V. A. Khoze
collection DOAJ
description Abstract We consider the central exclusive production of high $$E_T$$ ET jets $$pp\rightarrow p+(X+\mathrm{dijet})+p$$ pp→p+(X+dijet)+p . In particular we study the possible contamination of the purely exclusive signal by semi-exclusive production where no other secondaries are emitted in one hemisphere, between the highest $$E_T$$ ET dijet and the recoil proton, while in the other hemisphere a third jet, plus possibly additional hadron activity, is allowed, but still separated from the incoming proton by a large rapidity gap. This process arising from the fusion of a hard and a soft Pomeron has not been considered before. It turns out that it gives a negligible contribution. The calculation involves a careful treatment of the QCD colour structure of the amplitudes.
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spelling doaj.art-d009722625604876a91e89ae217e0b202022-12-21T18:47:38ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-07-017971910.1140/epjc/s10052-019-7120-xThe fusion of hard and soft Pomerons: 3-jet diffractive productionV. A. Khoze0A. D. Martin1M. G. Ryskin2A. G. Shuvaev3I. V. Surnin4Institute for Particle Physics Phenomenology, University of DurhamInstitute for Particle Physics Phenomenology, University of DurhamInstitute for Particle Physics Phenomenology, University of DurhamKurchatov National Research Centre, Petersburg Nuclear Physics InstituteKurchatov National Research Centre, Petersburg Nuclear Physics InstituteAbstract We consider the central exclusive production of high $$E_T$$ ET jets $$pp\rightarrow p+(X+\mathrm{dijet})+p$$ pp→p+(X+dijet)+p . In particular we study the possible contamination of the purely exclusive signal by semi-exclusive production where no other secondaries are emitted in one hemisphere, between the highest $$E_T$$ ET dijet and the recoil proton, while in the other hemisphere a third jet, plus possibly additional hadron activity, is allowed, but still separated from the incoming proton by a large rapidity gap. This process arising from the fusion of a hard and a soft Pomeron has not been considered before. It turns out that it gives a negligible contribution. The calculation involves a careful treatment of the QCD colour structure of the amplitudes.http://link.springer.com/article/10.1140/epjc/s10052-019-7120-x
spellingShingle V. A. Khoze
A. D. Martin
M. G. Ryskin
A. G. Shuvaev
I. V. Surnin
The fusion of hard and soft Pomerons: 3-jet diffractive production
European Physical Journal C: Particles and Fields
title The fusion of hard and soft Pomerons: 3-jet diffractive production
title_full The fusion of hard and soft Pomerons: 3-jet diffractive production
title_fullStr The fusion of hard and soft Pomerons: 3-jet diffractive production
title_full_unstemmed The fusion of hard and soft Pomerons: 3-jet diffractive production
title_short The fusion of hard and soft Pomerons: 3-jet diffractive production
title_sort fusion of hard and soft pomerons 3 jet diffractive production
url http://link.springer.com/article/10.1140/epjc/s10052-019-7120-x
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