Results 21 to 30 of about 3,162 (245)
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
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Next-to-leading-logarithm kT resummation for Bc → J/ψ decays
Physics Letters B, 2020 We derive the kT resummation for a transverse-momentum-dependent charmonium wave function, which involves the bottom quark mass mb, the charm quark mass mc, and the charm quark transverse momentum kT, up to the next-to-leading-logarithm (NLL) accuracy ...
Xin Liu, Hsiang-nan Li, Zhen-Jun Xiao
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Analysis of the 3d massive renormalization group perturbative expansions: a delicate case
Condensed Matter Physics, 2010 The effectiveness of the perturbative renormalization group approach at fixed space dimension d in the theory of critical phenomena is analyzed. Three models are considered: the O(N) model, the cubic model and the antiferromagnetic model defined on the ...
B. Delamotte +3 more
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Joint two-dimensional resummation in q T and 0-jettiness at NNLL
Journal of High Energy Physics, 2019 We consider Drell-Yan production pp → Z/γ ∗ → ℓ + ℓ − with the simultaneous measurement of the Z-boson transverse momentum q T and 0-jettiness T 0 $$ {\mathcal{T}}_0 $$ .
Gillian Lustermans +3 more
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Uncovering Hidden Patterns: Approximate Resurgent Resummation from Truncated Series
MathematicsWe analyze truncated series generated as divergent formal solutions of non-linear ordinary differential equations. Motivating the study is a specific non-linear, first-order differential equation, which is the basis of the resurgent formulation of ...
Alessio Maiezza, Juan Carlos Vasquez
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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
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The light MSSM Higgs boson mass for large $$\tan \beta $$ tan β and complex input parameters
European Physical Journal C: Particles and Fields, 2020 We discuss various improvements of the prediction for the light MSSM Higgs boson mass in the hybrid framework of the public code $$\texttt {FeynHiggs}$$ FeynHiggs , which combines fixed-order and effective field theory results.
Henning Bahl +2 more
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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
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Restricted Tweedie stochastic block models
Canadian Journal of Statistics, EarlyView.Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley +1 more source
Rank‐based estimation of propensity score weights via subclassification
Canadian Journal of Statistics, EarlyView.Abstract Propensity score (PS) weighting estimators are widely used for causal effect estimation and enjoy desirable theoretical properties, such as consistency and potential efficiency under correct model specification. However, their performance can degrade in practice due to sensitivity to PS model misspecification.
Linbo Wang +3 more
wiley +1 more source