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Limits on quark compositeness from high-energy jets in pp collisions at 1.8 TeV

Limits on quark compositeness from high-energy jets in pp collisions at 1.8 TeV
Limits on quark compositeness from high-energy jets in pp collisions at 1.8 TeV
Events in ¯pp collisions at √s=1.8TeV with total transverse energy exceeding 500GeV are used to set limits on quark substructure. The data are consistent with next-to-leading order QCD calculations. We set a lower limit of 2.0TeV at 95% confidence on the energy scale ΛLL for compositeness in quarks, assuming a model with a left-left isoscalar contact interaction term. The limits on ΛLL are found to be insensitive to the sign of the interference term in the Lagrangian.
2470-0010
Abbott, B.
9d06072e-d002-47e9-a49b-d209a2c79e00
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
DØ collaboration
Abbott, B.
9d06072e-d002-47e9-a49b-d209a2c79e00
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Abbott, B. and Belyaev, Alexander , DØ collaboration (2000) Limits on quark compositeness from high-energy jets in pp collisions at 1.8 TeV. Physical Review D, 62, [031101]. (doi:10.1103/PhysRevD.62.031101).

Record type: Article

Abstract

Events in ¯pp collisions at √s=1.8TeV with total transverse energy exceeding 500GeV are used to set limits on quark substructure. The data are consistent with next-to-leading order QCD calculations. We set a lower limit of 2.0TeV at 95% confidence on the energy scale ΛLL for compositeness in quarks, assuming a model with a left-left isoscalar contact interaction term. The limits on ΛLL are found to be insensitive to the sign of the interference term in the Lagrangian.

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Published date: 27 June 2000
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 410835
URI: http://eprints.soton.ac.uk/id/eprint/410835
ISSN: 2470-0010
PURE UUID: f3ac6bb3-b9b3-4535-b922-8330332f21a7
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 09 Jun 2017 09:44
Last modified: 26 Nov 2019 01:43

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Contributors

Author: B. Abbott

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