W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?

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We interpret the reported disagreement between the measured ratio, R_{10}, of the W + 1 jet cross-section to the W + 0 jet cross-section at the Tevatron and the Standard Model (SM) prediction, as the effect of interactions mediated by a colour-octet analogue of the W-boson, the W_8. The presence of...

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Detalles Bibliográficos
Autores principales: Choudhury, Debajyoti, Raychaudhuri, Sreerup, Sridhar, K.
Lenguaje:eng
Publicado: 1997
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(97)01088-5
http://cds.cern.ch/record/329055
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author Choudhury, Debajyoti
Raychaudhuri, Sreerup
Sridhar, K.
author_facet Choudhury, Debajyoti
Raychaudhuri, Sreerup
Sridhar, K.
author_sort Choudhury, Debajyoti
collection CERN
description We interpret the reported disagreement between the measured ratio, R_{10}, of the W + 1 jet cross-section to the W + 0 jet cross-section at the Tevatron and the Standard Model (SM) prediction, as the effect of interactions mediated by a colour-octet analogue of the W-boson, the W_8. The presence of a W_8 with mass O(300) GeV, and with couplings to quarks and gluons of the order of electroweak strength, allows the observations of the D0 collaboration to be reproduced quite accurately. Such an interaction is not in contradiction with the present CDF data on W+ W- or dijet production, though higher luminosities may reveal measurable effects.
id cern-329055
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling cern-3290552023-03-14T19:51:34Zdoi:10.1016/S0370-2693(97)01088-5http://cds.cern.ch/record/329055engChoudhury, DebajyotiRaychaudhuri, SreerupSridhar, K.W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?Particle Physics - PhenomenologyWe interpret the reported disagreement between the measured ratio, R_{10}, of the W + 1 jet cross-section to the W + 0 jet cross-section at the Tevatron and the Standard Model (SM) prediction, as the effect of interactions mediated by a colour-octet analogue of the W-boson, the W_8. The presence of a W_8 with mass O(300) GeV, and with couplings to quarks and gluons of the order of electroweak strength, allows the observations of the D0 collaboration to be reproduced quite accurately. Such an interaction is not in contradiction with the present CDF data on W+ W- or dijet production, though higher luminosities may reveal measurable effects.We interpret the reported disagreement between the measured ratio, R_{10}, of the W + 1 jet cross-section to the W + 0 jet cross-section at the Tevatron and the Standard Model (SM) prediction, as the effect of interactions mediated by a colour-octet analogue of the W-boson, the W_8. The presence of a W_8 with mass O(300) GeV, and with couplings to quarks and gluons of the order of electroweak strength, allows the observations of the D0 collaboration to be reproduced quite accurately. Such an interaction is not in contradiction with the present CDF data on W+ W- or dijet production, though higher luminosities may reveal measurable effects.We interpret the reported disagreement between the measured ratio, R 10 , of the W + 1 jet cross-section to the W + 0 jet cross-section at the Tevatron and the Standard Model (SM) prediction, as the effect of interactions mediated by a colour-octet analogue of the W boson, the W 8 . The presence of a W 8 with mass O (300) GeV, and with couplings to quarks and gluons of the order of electroweak strength, allows the observations of the D0 collaboration to be reproduced quite accurately. The same interaction leads to an enhancement in the dijet production rate which is well within experimental limits; in W + W − production, the enhancement is more significant and could serve as a discriminant as more statistics accumulate.hep-ph/9706536CERN-TH-97-139TIFR-TH-97-28CERN-TH-97-139TIFR-TH-97-28oai:cds.cern.ch:3290551997-07-01
spellingShingle Particle Physics - Phenomenology
Choudhury, Debajyoti
Raychaudhuri, Sreerup
Sridhar, K.
W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?
title W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?
title_full W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?
title_fullStr W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?
title_full_unstemmed W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?
title_short W + 1-jet to W + 0-jet ratio at the Tevatron: a hint of new physics?
title_sort w + 1-jet to w + 0-jet ratio at the tevatron: a hint of new physics?
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(97)01088-5
http://cds.cern.ch/record/329055
work_keys_str_mv AT choudhurydebajyoti w1jettow0jetratioatthetevatronahintofnewphysics
AT raychaudhurisreerup w1jettow0jetratioatthetevatronahintofnewphysics
AT sridhark w1jettow0jetratioatthetevatronahintofnewphysics

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