Results 21 to 30 of about 1,466 (260)
Hard Noncommutative Loops Resummation [PDF]
Physical Review Letters, 2002 The non-commutative version of the euclidean $g^2ϕ^4$ theory is considered. By using Wilsonian flow equations the ultraviolet renormalizability can be proved to all orders in perturbation theory. On the other hand, the infrared sector cannot be treated perturbatively and requires a resummation of the leading divergencies in the two-point function. This
GRIGUOLO, Luca, PIETRONI, MASSIMO
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, 2015 The goal of this section is to discuss renormalization and Renormalization Group (RG) evolution in the effective theory. In the next section, we carry out the full computation of the resummed cross section in the case of Drell-Yan scattering. Here, in order to keep our discussion simple, we first consider the case of the Sudakov form factor in QCD for ...
Becher, T, Broggio, A, Ferroglia, A
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Resummation of Massive Gravity
Physical Review Letters, 2011 We construct four-dimensional covariant non-linear theories of massive gravity which are ghost-free in the decoupling limit to all orders. These theories resum explicitly all the nonlinear terms of an effective field theory of massive gravity. We show that away from the decoupling limit the Hamiltonian constraint is maintained at least up to and ...
de Rham Claudia +2 more
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Phenomenology of combined resummation for Higgs and Drell-Yan
Journal of High Energy Physics, 2020 We study the phenomenological impact of a recently suggested formalism for the combination of threshold and a so-called threshold-improved transverse momentum resummation, by using it to improve the fixed-order results.
Tanjona R. Rabemananjara
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Nonperturbative effect in threshold resummation [PDF]
Journal of High Energy Physics, 2009 JHEP06(2009 ...
Li, Chong Sheng, Li, Zhao, Yuan, C. -P.
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Thermal resummation and phase transitions [PDF]
The European Physical Journal C, 2018 38 pages, 6 figures, plus appendix and ...
David Curtin +2 more
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Multi-loop amplitudes and resummation [PDF]
Physics Letters B, 2003 We explore the relation between resummation and explicit multi-loop calculations for QCD hard-scattering amplitudes. We describe how the factorization properties of amplitudes lead to the exponentiation of double and single poles at each order of perturbation theory. For these amplitudes, previously-observed relations between single and double poles in
Sterman, George +1 more
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How much joint resummation do we need?
Journal of High Energy Physics, 2019 Large logarithms that arise in cross sections due to the collinear and soft singularities of QCD are traditionally treated using parton showers or analytic resummation.
Gillian Lustermans +2 more
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A dispersive approach to Sudakov resummation [PDF]
Nuclear Physics B, 2008 85 ...
Gardi, Einan, Grunberg, Georges
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Resummation for QCD hard scattering [PDF]
Nuclear Physics B, 1997 We resum distributions that are singular at partonic threshold (the elastic limit) in heavy quark production, in terms of logarithmic behavior in moment space. The method may be applied to a variety of cross sections sensitive to the edge of phase space, including transverse momentum distributions.
Kidonakis, Nikolaos, Sterman, George
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