Results 51 to 60 of about 6,699 (190)
NNLL Resummation for Jet Broadening
, 2012 The resummation for the event-shape variable jet broadening is extended to next-to-next-to-leading logarithmic accuracy by computing the relevant jet and soft functions at one-loop order and the collinear anomaly to two-loop accuracy.
Guido Bell +5 more
core +1 more source
A precise determination of $\alpha_s$ from the heavy jet mass distribution
SciPost PhysicsA global fit for $\alpha_s(m_Z)$ is performed on available $e^+e^-$ data for the heavy jet mass distribution. The state-of-the-art theory prediction includes NNLO fixed-order results, N$^3$LL$^\prime$ dijet resummation, N$^2$LL Sudakov shoulder ...
Miguel A. Benitez, Arindam Bhattacharya, Andre H. Hoang, Vicent Mateu, Matthew D. Schwartz, Iain W. Stewart, Xiaoyuan Zhang
doaj +1 more source
Next-to-leading-logarithm threshold resummation for exclusive B meson decays
European Physical Journal C: Particles and Fields, 2021 We extend the threshold resummation of the large logarithms $$\ln x$$ ln x which appear in factorization formulas for exclusive B meson decays, x being a spectator momentum fraction, to the next-to-leading-logarithm (NLL) accuracy.
Zhi-Qing Zhang, Hsiang-nan Li
doaj +1 more source
HIGH ENERGY RESUMMATION IN PERTURBATIVE QCD [PDF]
, 2010 In this work, we review the general aspects of the high energy resummation technique. Recently derived results for high energy resummation of direct photon production are matched to NLO computations, and their implications at the Tevatron and at the ...
G. Diana
core +1 more source
Threshold resummation and rapidity dependence [PDF]
Journal of High Energy Physics, 2001 We study the effects of threshold resummation on the rapidity dependence of single-particle-inclusive cross sections, using the prompt photon cross section as an example. We make use of the full resummation formula at next-to-leading logarithmic accuracy and develop a new technique for treating rapidity in resummation.
Sterman, George, Vogelsang, Werner
openaire +2 more sources
Factorization and resummation for transverse thrust [PDF]
, 2015 We analyze transverse thrust in the framework of Soft Collinear Effective Theory and obtain a factorized expression for the cross section that permits resummation of terms enhanced in the dijet limit to arbitrary accuracy.
Becher, Thomas +3 more
core +2 more sources
Stop comparing resummation methods [PDF]
, 2023 I argue that the consistency of any resummation method can be established if the method follows a power counting derived from a hierarchy of scales. I.e., whether it encodes a top-down effective field theory.
Johan Löfgren, Löfgren, Johan
core +1 more source
Associated production of a top quark pair with a heavy electroweak gauge boson at NLO+NNLL accuracy
European Physical Journal C: Particles and Fields, 2019 We perform threshold resummation of soft gluon corrections to the total cross sections and the invariant mass distributions for production of a top-antitop quark pair associated with a heavy electroweak boson $$V = W^+$$ V=W+ , $$W^-$$ W- or Z in pp ...
Anna Kulesza +4 more
doaj +1 more source
Resummed Results for Hadron Collider Observables
EPJ Web of Conferences, 2016 Event shapes are invaluable QCD tools for theoretical calculations and experimental measurements. We revise the definition of these observables in e+e− annihilation and in hadron collisions, and give a review of the state-of-the-art results for their ...
McAslan Heather
doaj +1 more source
Small-x phenomenology at the LHC and beyond: HELL 3.0 and the case of the Higgs cross section
European Physical Journal C: Particles and Fields, 2018 Small-x resummation has been proven recently to be a crucial ingredient for describing small-x HERA data, and the inclusion of small-x resummation in parton distribution function (PDF) determination has a sizeable effect on the PDFs even at the ...
Marco Bonvini
doaj +1 more source