Extrapolating W-Associated Jet-Production Ratios at the LHC - Archive ouverte HAL Access content directly
Journal Articles Physical Review D Year : 2015

Extrapolating W-Associated Jet-Production Ratios at the LHC

(1) , (2) , (3, 4) , (2) , (5) , (4) , (6)
1
2
3
4
5
6

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, $H_T^{\rm jets}$; 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 $H_T^{\rm jets}$ 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.
Fichier principal
Vignette du fichier
1412.4775v1.pdf (999.79 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-01297656 , version 1 (04-04-2016)

Identifiers

Cite

Z. Bern, L. j. Dixon, F. Febres Cordero, S. Höche, D. a. Kosower, et al.. Extrapolating W-Associated Jet-Production Ratios at the LHC. Physical Review D, 2015, 92 (1), ⟨10.1103/PhysRevD.92.014008⟩. ⟨cea-01297656⟩
87 View
77 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More