Three- and four-jet final states in photoproduction at HERA

S. Chekanov; P. Kooijman

Three- and four-jet final states in photoproduction at HERA

S. Chekanov
, P. Kooijman

extern

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Three- and four-jet final states have been measured in photoproduction at HERA using the ZEUS detector with an integrated luminosity of 121 pb^-1. The results are presented for jets with transverse energy E_T^jet>6 GeV and pseudorapidity |eta^jet|50 GeV, where M_nj is the invariant mass of the n-jet system. The four-jet photoproduction cross section has been measured for the first time and represents the highest-order process studied at HERA. Both the three- and four-jet cross sections have been compared with leading-logarithmic parton-shower Monte Carlo models, with and without multi-parton interactions. The three-jet cross sections have been compared to an order(alpha alpha_s^2) perturbative QCD calculation.

Original language	Undefined/Unknown
Pages (from-to)	1-47
Number of pages	57
Journal	Nuclear physics. Series B
Volume	792
Publication status	Published - 2008

Bibliographical note

ZEUS Collaboration

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Cite this

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title = "Three- and four-jet final states in photoproduction at HERA",

abstract = "Three- and four-jet final states have been measured in photoproduction at HERA using the ZEUS detector with an integrated luminosity of 121 pb\textasciicircum{}-1. The results are presented for jets with transverse energy E\_T\textasciicircum{}jet>6 GeV and pseudorapidity |eta\textasciicircum{}jet|50 GeV, where M\_nj is the invariant mass of the n-jet system. The four-jet photoproduction cross section has been measured for the first time and represents the highest-order process studied at HERA. Both the three- and four-jet cross sections have been compared with leading-logarithmic parton-shower Monte Carlo models, with and without multi-parton interactions. The three-jet cross sections have been compared to an order(alpha alpha\_s\textasciicircum{}2) perturbative QCD calculation.",

author = "S. Chekanov and P. Kooijman",

note = "ZEUS Collaboration",

year = "2008",

language = "Undefined/Unknown",

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journal = "Nuclear physics. Series B",

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TY - JOUR

T1 - Three- and four-jet final states in photoproduction at HERA

AU - Chekanov, S.

AU - Kooijman, P.

N1 - ZEUS Collaboration

PY - 2008

Y1 - 2008

N2 - Three- and four-jet final states have been measured in photoproduction at HERA using the ZEUS detector with an integrated luminosity of 121 pb^-1. The results are presented for jets with transverse energy E_T^jet>6 GeV and pseudorapidity |eta^jet|50 GeV, where M_nj is the invariant mass of the n-jet system. The four-jet photoproduction cross section has been measured for the first time and represents the highest-order process studied at HERA. Both the three- and four-jet cross sections have been compared with leading-logarithmic parton-shower Monte Carlo models, with and without multi-parton interactions. The three-jet cross sections have been compared to an order(alpha alpha_s^2) perturbative QCD calculation.

AB - Three- and four-jet final states have been measured in photoproduction at HERA using the ZEUS detector with an integrated luminosity of 121 pb^-1. The results are presented for jets with transverse energy E_T^jet>6 GeV and pseudorapidity |eta^jet|50 GeV, where M_nj is the invariant mass of the n-jet system. The four-jet photoproduction cross section has been measured for the first time and represents the highest-order process studied at HERA. Both the three- and four-jet cross sections have been compared with leading-logarithmic parton-shower Monte Carlo models, with and without multi-parton interactions. The three-jet cross sections have been compared to an order(alpha alpha_s^2) perturbative QCD calculation.

M3 - Article

SN - 0550-3213

VL - 792

SP - 1

EP - 47

JO - Nuclear physics. Series B

JF - Nuclear physics. Series B

ER -