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相关论文: Transverse-momentum resummation for gaugino-pair p…

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We make use of recently released parton density functions (PDFs) with threshold-resummation improvement to consistently calculate theoretical predictions for neutralino and chargino pair production at next-to-leading order and…

高能物理 - 唯象学 · 物理学 2018-09-19 J. Fiaschi , M. Klasen

We present a precision calculation of the transverse-momentum and invariant-mass distributions for supersymmetric particle pair production at hadron colliders, focusing on Drell-Yan like slepton pair and slepton-sneutrino associated…

高能物理 - 唯象学 · 物理学 2008-11-26 G. Bozzi , B. Fuks , M. Klasen

We study the factorization and resummation of the transverse momentum spectrum of the color sextet and antitriplet scalars produced at the LHC based on soft-collinear effective theory. Compared to Z boson and Higgs production, a soft…

高能物理 - 唯象学 · 物理学 2014-03-04 Ze Long Liu , Chong Sheng Li , Yan Wang , Yong Chuan Zhan , Hai Tao Li

We investigate the QCD effects in the associated production of the chargino and the neutralino, $\tilde\chi^\pm_{1}$ and $\tilde\chi^0_{2}$, in the Minimal Supersymmetric Standard Model (MSSM) at both the Fermilab Tevatron and the CERN…

高能物理 - 唯象学 · 物理学 2008-11-26 Chong Sheng Li , Zhao Li , Robert J. Oakes , Li Lin Yang

The transverse momentum distribution of the $t\bar{t}$ system is of both experimental and theoretical interest. In the presence of the azimuthally asymmetric divergences, pursuing the resummation at the high logarithmic precision is rather…

高能物理 - 唯象学 · 物理学 2023-02-14 Wan-Li Ju , Marek Schönherr

We present an exploratory study of gaugino-pair production in polarized and unpolarized hadron collisions, focusing on the correlation of beam polarization and gaugino/Higgsino mixing in the general Minimal Supersymmetric Standard Model.…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Debove , B. Fuks , M. Klasen

Using invariant-mass threshold resummation, we compute the invariant-mass distribution and the total cross section for $t\bar{t}t\bar{t}$ production at the LHC with centre-of-mass energy of 13.6 TeV at NLL' accuracy. This accuracy includes…

高能物理 - 唯象学 · 物理学 2025-05-16 Melissa van Beekveld , Anna Kulesza , Michele Lupattelli , Tommaso Saracco

We consider the transverse-momentum distribution of colourless high-mass systems (lepton pairs, vector bosons, Higgs particles...) produced in hadronic collisions. We briefly review a formalism for the all-order resummation of the…

高能物理 - 唯象学 · 物理学 2009-08-11 M. Grazzini

I discuss threshold resummation at NNLL accuracy in the standard moment-space approach in perturbative QCD for top-pair and single-top production. For top quark pair production I present new approximate NNLO results for the total cross…

高能物理 - 唯象学 · 物理学 2014-07-04 Nikolaos Kidonakis

Diboson processes are one of the most accessible and stringent probes of the Standard Model's electroweak gauge structure at the LHC. They will be probed at the percent level at the high-luminosity LHC, challenging current theory…

高能物理 - 唯象学 · 物理学 2023-05-03 John M. Campbell , R. Keith Ellis , Tobias Neumann , Satyajit Seth

We study the effect of multiple parton radiation to Higgs boson plus jet production at the LHC, by applying the transverse momentum dependent (TMD) factorization formalism to resum large logarithmic contributions to all orders in the…

高能物理 - 唯象学 · 物理学 2017-03-01 Peng Sun , Joshua Isaacson , C. -P. Yuan , Feng Yuan

We present updated results for the production cross sections of slepton pairs and neutralino-chargino pairs at the LHC with next-to-next-to logarithmic precision matched at approximate QCD next-to-next-to leading order. The explored range…

高能物理 - 唯象学 · 物理学 2020-11-24 Juri Fiaschi , Michael Klasen

A search for charginos and neutralinos, predicted by supersymmetric theories, is performed using a data sample of 182.1 pb-1 taken at a centre-of-mass energy of 189 GeV with the OPAL detector at LEP. No evidence for chargino or neutralino…

高能物理 - 实验 · 物理学 2016-08-31 The OPAL Collaboration , G. Abbiendi

A novel computation of the fully-differential cross section for neutral Higgs-boson production through gluon fusion in the CP-conserving NMSSM is presented. Based on the calculation of NLO corrections to the total cross section [1], we…

高能物理 - 唯象学 · 物理学 2016-08-11 Stefan Liebler , Hendrik Mantler , Marius Wiesemann

The studies of the associated production processes of a top-quark pair with a colour-singlet boson, e.g. Higgs, W or Z, are among the highest priorities of the LHC programme. Correspondingly, improvements in precision of theoretical…

高能物理 - 唯象学 · 物理学 2020-08-26 Anna Kulesza , Leszek Motyka , Daniel Schwartländer , Tomasz Stebel , Vincent Theeuwes

We present a general framework that allows to compute the resummed transverse-momentum distribution of a system of colorless particles. The implementation is fully differential in the degrees of freedom of the final-state system. As a first…

高能物理 - 唯象学 · 物理学 2016-02-11 Marius Wiesemann

The transverse momentum spectra of seven identified hadrons produced in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ and 5.02 TeV at the CERN Large Hadron Collider (LHC) have been investigated in the framework of the recombination model (RM).…

高能物理 - 唯象学 · 物理学 2021-07-16 Lilin Zhu , Hua Zheng , Rudolph C. Hwa

A search for chargino$-$neutralino pair production in three-lepton final states with missing transverse momentum is presented. The study is based on a dataset of $\sqrt{s} = 13$ TeV $pp$ collisions recorded with the ATLAS detector at the…

高能物理 - 实验 · 物理学 2021-12-22 ATLAS Collaboration

We examine resonant slepton production at the LHC with gravitinos in the final state. The slepton undergoes gauge decay into a neutralino and a lepton, the neutralino decays into a photon and a gravitino. By measuring the transverse masses…

高能物理 - 唯象学 · 物理学 2010-04-05 B. C. Allanach , Manoranjan Guchait , K. Sridhar

We develop a framework for a systematic resummation of the transverse momentum distribution of top-quark pairs produced at hadron colliders based on effective field theory. Compared to Drell-Yan and Higgs production, a novel soft function…

高能物理 - 唯象学 · 物理学 2013-03-14 Hua Xing Zhu , Chong Sheng Li , Hai Tao Li , Ding Yu Shao , Li Lin Yang