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We present the Renormalization Group improvement of the Twin Higgs effective potential at cubic order in logarithmic accuracy. We first introduce a model-independent low-energy effective Lagrangian that captures both the…

高能物理 - 唯象学 · 物理学 2016-11-22 Davide Greco , Kin Mimouni

To calculate the transverse-momentum-dependent parton distribution functions (TMDPDFs) from lattice QCD, an important goal yet to be realized, it is crucial to establish a viable non-perturbative renormalization approach for linear…

高能物理 - 格点 · 物理学 2022-08-31 Kuan Zhang , Xiangdong Ji , Yi-Bo Yang , Fei Yao , Jian-Hui Zhang

The one-dimensional (1D) $t-J$ model is investigated using the density matrix renormalization group (DMRG) method. We report for the first time a generalization of the DMRG method to the case of arbitrary band filling and prove a theorem…

凝聚态物理 · 物理学 2009-10-28 Liang Chen , S. Moukouri

We study by the perturbative Functional Renormalization Group (FRG) the Random Field and Random Anisotropy O(N) models near $d=4$, the lower critical dimension of ferromagnetism. The long-distance physics is controlled by zero-temperature…

统计力学 · 物理学 2009-11-11 Matthieu Tissier , Gilles Tarjus

We present next-to-next-to-leading-order (NNLO) results for an exclusive soft function that appears in a recently developed factorization theorem for transverse momentum distributions. The factorization theorem, derived using the Soft…

高能物理 - 唯象学 · 物理学 2011-12-21 Ye Li , Sonny Mantry , Frank Petriello

Incorporating all recent theoretical advances, we resum soft-gluon corrections to the total $t\bar t$ cross-section at hadron colliders at the next-to-next-to-leading logarithmic (NNLL) order. We perform the resummation in the well…

高能物理 - 唯象学 · 物理学 2015-06-03 Matteo Cacciari , Michal Czakon , Michelangelo L. Mangano , Alexander Mitov , Paolo Nason

The renormalization properties of unintegrated (transverse-momentum dependent) parton distribution functions (TMD PDF's) are used for analyzing their completely gauge-invariant definition. To this end, the UV anomalous dimension is…

高能物理 - 唯象学 · 物理学 2008-11-06 I. O. Cherednikov , N. G. Stefanis

The renormalization-group properties of gauge-invariant transverse-momentum dependent (TMD) parton distribution functions (PDF) in QCD are addressed. We perform an analysis of their leading-order anomalous dimensions, which are local…

高能物理 - 唯象学 · 物理学 2008-11-26 I. O. Cherednikov , N. G. Stefanis

The full-density-matrix numerical renormalization group (NRG) has evolved as a systematic and transparent setting for the cal- culation of thermodynamical quantities at arbitrary temperatures within the NRG framework. It directly evaluates…

强关联电子 · 物理学 2013-05-30 Andreas Weichselbaum

We study a model of Tensorial Group Field Theory (TGFT) on $\mathbb{R}^3$ from the point of view of the Functional Renormalisation Group. This is the first attempt to apply a renormalisation procedure to a TGFT model defined over a…

高能物理 - 理论 · 物理学 2015-12-09 Joseph Ben Geloun , Riccardo Martini , Daniele Oriti

We calculate the soft function for the global event variable 1-jettiness at next-to-next-to-leading order (NNLO) in QCD. We focus specifically on the non-Abelian contribution, which, unlike the Abelian part, is not determined by the…

高能物理 - 唯象学 · 物理学 2018-04-18 John M. Campbell , R. Keith Ellis , Roberto Mondini , Ciaran Williams

I present results for two-loop soft anomalous dimensions for heavy quark production which control soft-gluon resummation at next-to-next-to-leading-logarithm (NNLL) accuracy. I derive an explicit expression for the exact result and study it…

高能物理 - 唯象学 · 物理学 2009-10-08 Nikolaos Kidonakis

We study the power corrections to Transverse Momentum Distributions (TMDs) by analyzing renormalon divergences of the perturbative series. The renomalon divergences arise independently in two constituents of TMDs: the rapidity evolution…

高能物理 - 唯象学 · 物理学 2017-04-05 Ignazio Scimemi , Alexey Vladimirov

We provide a new formulation of Time-Dependent Density Functional Theory (TDDFT) based on the geometric structure of the set of states constrained to have a fixed density. Orbital-free TDDFT is formulated using a hydrodynamics equation…

We show that the Tensor Renormalization Group (TRG) method can be applied to O(N) spin models, principal chiral models and pure gauge theories (Z2, U(1) and SU(2)) on (hyper) cubic lattices. We explain that contrarily to some common belief,…

高能物理 - 格点 · 物理学 2014-12-02 Yannick Meurice , Alan Denbleyker , Yuzhi Liu , Tao Xiang , Zhiyuan Xie , Ji-Feng Yu , Judah Unmuth-Yockey , Haiyuan Zou

We present for the first time time-dependent density-matrix renormalization-group simulations (t-DMRG) at finite temperatures. It is demonstrated how a combination of finite-temperature t-DMRG and time-series prediction allows for an easy…

强关联电子 · 物理学 2009-07-28 Thomas Barthel , Ulrich Schollwöck , Steven R. White

We compute the two-loop renormalization group equations for all soft supersymmetry-breaking couplings in a general softly broken N=1 supersymmetric model. We also specialize these results to the Minimal Supersymmetric Standard Model.

高能物理 - 唯象学 · 物理学 2014-11-17 Stephen P. Martin , Michael T. Vaughn

We study the factorization and resummation prediction on the jet mass spectrum in one-jet inclusive production at the LHC based on soft-collinear effective theory. The soft function with anti-$k_T$ algorithm is calculated at next-to-leading…

高能物理 - 唯象学 · 物理学 2015-04-07 Ze Long Liu , Chong Sheng Li , Jian Wang , Yan Wang

We compute the 1-jettiness soft function for the decay of a heavy quark into a light quark jet plus colorless particles at three-loop order in soft-collinear effective theory. The 1-jettiness measurement fixes the total small light-cone…

高能物理 - 唯象学 · 物理学 2020-03-17 Robin Brüser , Ze Long Liu , Maximilian Stahlhofen

We derive a factorization formula for the production of pairs of heavy coloured particles in hadronic collisions near the production threshold that establishes factorization of soft and Coulomb effects. This forms the basis for a combined…

高能物理 - 唯象学 · 物理学 2011-03-22 Martin Beneke , Pietro Falgari , Christian Schwinn