scholarly journals Next-to-next-to-leading order N -jettiness soft function for one massive colored particle production at hadron colliders

2017 ◽  
Vol 2017 (2) ◽  
Author(s):  
Hai Tao Li ◽  
Jian Wang
Keyword(s):  
Particle Production ◽  
Leading Order ◽  
Hadron Colliders ◽  
Soft Function ◽  
Colored Particle

scholarly journals Three-loop soft function for energetic electroweak boson production at hadron colliders

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Ze Long Liu ◽  
Maximilian Stahlhofen
Keyword(s):  
Transverse Momentum ◽  
Cross Sections ◽  
Hadron Collider ◽  
Boson Production ◽  
Leading Order ◽  
Large Transverse Momentum ◽  
Hadron Colliders ◽  
Soft Function ◽  
Electroweak Boson ◽  
First Time

Abstract We calculate the three-loop soft function for the production of an electroweak boson (Higgs, γ, W±, Z) with large transverse momentum at a hadron collider. It is the first time a soft function for a three-parton process is computed at next-to-next-to-next-to-leading order (N3LO). As a technical novelty, we perform the calculation in terms of forward-scattering-type loop diagrams rather than evaluating phase space integrals. Our three-loop result contains color-tripole contributions and explicitly confirms predictions on the universal infrared structure of QCD scattering amplitudes with three massless parton legs. The soft function is a central ingredient in the factorized cross section for electroweak boson production near the kinematic endpoint (threshold), where the invariant mass of the recoiling hadronic radiation is small compared to its transverse momentum. Our result is required for predictions of the near-threshold cross sections at N3LO and for the resummation of threshold logarithms at primed next-to-next-to-next-to-leading logarithmic (N3LL′) accuracy.

scholarly journals HIGGS PRODUCTION IN ASSOCIATION WITH BOTTOM QUARKS AT HADRON COLLIDERS

2006 ◽  
Vol 21 (02) ◽  
pp. 89-109 ◽  
Author(s):  
S. DAWSON ◽  
C. B. JACKSON ◽  
L. REINA ◽  
D. WACKEROTH
Keyword(s):  
Standard Model ◽  
Cross Sections ◽  
Hadron Collider ◽  
Distribution Functions ◽  
Bottom Quarks ◽  
Final States ◽  
Leading Order ◽  
Hadron Colliders ◽  
Parton Distribution Functions ◽  
Model Case

We review the present status of the QCD corrected cross-sections and kinematic distributions for the production of a Higgs boson in association with bottom quarks at the Fermilab Tevatron and CERN Large Hadron Collider. Results are presented for the Minimal Supersymmetric Standard Model where, for large tan β, these production modes can be greatly enhanced compared to the Standard Model case. The next-to-leading order QCD results are much less sensitive to the renormalization and factorization scales than the lowest order results, but have a significant dependence on the choice of the renormalization scheme for the bottom quark Yukawa coupling. We also investigate the uncertainties coming from the Parton Distribution Functions and find that these uncertainties can be comparable to the uncertainties from the remaining scale dependence of the next-to-leading order results. We present results separately for the different final states depending on the number of bottom quarks identified.

scholarly journals Central exclusive particle production at high energy hadron colliders

2010 ◽  
Vol 65 (2) ◽  
pp. 149-184 ◽  
Author(s):  
M.G. Albrow ◽  
T.D. Coughlin ◽  
J.R. Forshaw
Keyword(s):  
Particle Production ◽  
High Energy ◽  
Hadron Colliders ◽  
Energy Hadron

scholarly journals N-jettiness soft function at next-to-next-to-leading order

2015 ◽  
Vol 91 (9) ◽  
Author(s):  
Radja Boughezal ◽  
Xiaohui Liu ◽  
Frank Petriello
Keyword(s):  
Leading Order ◽  
Soft Function

scholarly journals NEXT-TO-NEXT-TO-LEADING ORDER SOFT AND VIRTUAL CORRECTIONS FOR QCD, HIGGS AND SUSY PROCESSES

2004 ◽  
Vol 19 (06) ◽  
pp. 405-419 ◽  
Author(s):  
NIKOLAOS KIDONAKIS
Keyword(s):  
Top Quark ◽  
W Boson ◽  
Neutral Current ◽  
Leading Order ◽  
Large Transverse Momentum ◽  
Hadron Colliders ◽  
Unified Approach ◽  
Anomalous Couplings ◽  
Flavor Changing ◽  
Flavor Changing Neutral Current

We review recent advances in the calculation of higher-order soft-gluon corrections for a variety of QCD, Higgs, and SUSY processes in hadron colliders. A unified approach and master formulas for next-to-next-to-leading order soft and virtual corrections are discussed. We present some applications of the formalism to top quark pair production at the Tevatron and the LHC, top production via anomalous couplings in flavor-changing neutral-current processes, W boson hadroproduction at large transverse momentum, and charged Higgs production at the LHC.

scholarly journals Single inclusive particle production in proton-nucleus collisions at next-to-leading order in the hybrid formalism

2015 ◽  
Vol 91 (9) ◽  
Author(s):  
Tolga Altinoluk ◽  
Néstor Armesto ◽  
Guillaume Beuf ◽  
Alex Kovner ◽  
Michael Lublinsky
Keyword(s):  
Particle Production ◽  
Leading Order
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