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Extrapolating W-associated jet-production ratios at the LHC

Bern, B.; Dixon, L.J.; Febres Cordero, F.; Hoeche, S.; Ita, H.; Maitre, D.

Extrapolating W-associated jet-production ratios at the LHC Thumbnail


Authors

B. Bern

L.J. Dixon

F. Febres Cordero

S. Hoeche

H. Ita



Abstract

Electroweak vector-boson production, accompanied by multiple jets, is an important background to searches for physics beyond the standard model. A precise and quantitative understanding of this process is helpful in constraining deviations from known physics. We study four key ratios in W+n-jet production at the LHC. We compute the ratio of cross sections for W+n- to W+(n−1)-jet production as a function of the minimum jet transverse momentum. We also study the ratio differentially, as a function of the W-boson transverse momentum; as a function of the scalar sum of the jet transverse energy, HjetsT; and as a function of certain jet transverse momenta. We show how to use such ratios to extrapolate differential cross sections to W+6-jet production at next-to-leading order, and we cross-check the method against a direct calculation at leading order. We predict the differential distribution in HjetsT for W+6 jets at next-to-leading order using such an extrapolation. We use the BlackHat software library together with SHERPA to perform the computations.

Citation

Bern, B., Dixon, L., Febres Cordero, F., Hoeche, S., Ita, H., & Maitre, D. (2015). Extrapolating W-associated jet-production ratios at the LHC. Physical Review D, 92(1), Article 014008. https://doi.org/10.1103/physrevd.92.014008

Journal Article Type Article
Acceptance Date Apr 23, 2015
Online Publication Date Jul 7, 2015
Publication Date Jul 7, 2015
Deposit Date Oct 27, 2015
Publicly Available Date Mar 29, 2024
Journal Physical Review D
Print ISSN 1550-7998
Electronic ISSN 1550-2368
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 92
Issue 1
Article Number 014008
DOI https://doi.org/10.1103/physrevd.92.014008
Related Public URLs http://arxiv.org/abs/arXiv:1412.4775

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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review D 92, 014008 © 2015 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.





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