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Single slepton production in association with a top quark at the CERN Large Hadron Collider (LHC) is one of the important processes in probing the R-parity violation couplings. We calculate the QCD next-to-leading order (NLO) corrections to…

高能物理 - 唯象学 · 物理学 2012-03-29 Li Xiao-Peng , Guo Lei , Ma Wen-Gan , Han Liang , Zhang Ren-You , Wang Shao-Ming

We study the threshold effect for neutral and charged Drell-Yan productions, associated production of Higgs boson with a massive vector boson and Higgs production in bottom quark annihilation at LHC to the third order in QCD. Using the…

高能物理 - 唯象学 · 物理学 2023-03-10 Goutam Das , Chinmoy Dey , M. C. Kumar , Kajal Samanta

We present the resummed predictions for inclusive cross-section for Drell-Yan (DY) production as well as onshell $Z,W^\pm$ productions at next-to-next-to-next-to leading logarithmic (N$^{3}$LL) accuracy. Using the standard techniques, we…

高能物理 - 唯象学 · 物理学 2020-01-31 Ajjath A. H. , Goutam Das , M. C. Kumar , Pooja Mukherjee , V. Ravindran , Kajal Samanta

A short summary of a NLO QCD calculation for the top-quark pair production with a jet in the dilepton decay channel is presented. The calculation takes into account all double, single, non-resonant and interference contributions. Thus, NLO…

高能物理 - 唯象学 · 物理学 2016-08-19 Manfred Kraus

We consider higher-order QCD corrections to the production of high-mass systems in hadron collisions within the transverse-momentum (q$_{\rm T}$) subtraction formalism. We present a method to consistently remove the linear power corrections…

高能物理 - 唯象学 · 物理学 2022-07-13 Stefano Camarda , Leandro Cieri , Giancarlo Ferrera

We present a comprehensive comparison of the available experimental data for the Drell-Yan lepton angular coefficients $\lambda$ and $\nu$ to calculations at leading and next-to-leading order of perturbative QCD. To obtain the…

高能物理 - 唯象学 · 物理学 2016-09-13 Martin Lambertsen , Werner Vogelsang

We compute theoretical predictions for the production of a W-boson in association with a bottom-quark pair at hadron colliders at next-to-next-to-leading order (NNLO) in QCD, including the leptonic decay of the W-boson, while treating the…

高能物理 - 唯象学 · 物理学 2022-05-17 Heribertus Bayu Hartanto , Rene Poncelet , Andrei Popescu , Simone Zoia

We analyze the transverse momentum ($p_{T}$) spectra of lepton pairs ($\ell\bar \ell$) generated in the Drell-Yan process, as detected in proton-nucleus (pion-nucleus) and proton-(anti)proton collisions by ten collaborations over a…

高能物理 - 唯象学 · 物理学 2021-06-02 Xu-Hong Zhang , Fu-Hu Liu

We study the Drell-Yan production of heavy vector and axial-vector states of generic Higgsless models at hadron colliders. We analyse in particular the l+l-, WZ, and three SM gauge boson final states. In the l+l- case we show how present…

高能物理 - 唯象学 · 物理学 2009-09-28 Oscar Cata , Gino Isidori , Jernej F. Kamenik

If kinematically accessible, hadron collider experiments provide an ideal laboratory for the direct production of heavy lepton partners in Seesaw models. In the context of the Type III Seesaw Mechanism, the $\mathcal{O}(\alpha_s)$ rate and…

高能物理 - 唯象学 · 物理学 2016-01-07 Richard Ruiz

We present the nuclear transverse momentum broadening for Drell-Yan lepton pair production in p+A collisions at next-to-leading order (NLO) in powers of strong coupling constant $\alpha_s$. We verify that the transverse momentum weighted…

高能物理 - 唯象学 · 物理学 2016-11-02 Zhong-Bo Kang , Jian-Wei Qiu , Xin-Nian Wang , Hongxi Xing

We report on the first fully differential calculation for $W^\pm Z$ production in hadron collisions up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. Leptonic decays of the $W$ and $Z$ bosons are consistently taken into…

高能物理 - 唯象学 · 物理学 2017-09-13 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev , Marius Wiesemann

Precision tests of the Standard Model (SM) require not only accurate experiments, but also precise and reliable theoretical predictions. Triple vector boson production provides a unique opportunity to investigate the quartic gauge couplings…

高能物理 - 唯象学 · 物理学 2016-11-08 Shen Yong-Bai , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Zhang Yu , Guo Lei

Limits are set on the pair production of scalar leptoquarks, where all possible decays of the leptoquark into a quark ($t$, $b$) and a lepton ($\tau$, $\nu$) of the third generation are considered. The limits are presented as a function of…

高能物理 - 实验 · 物理学 2019-08-13 ATLAS Collaboration

We show that the observation of the Drell-Yan production of low-mass lepton-pairs (M < 20 GeV) at high rapidities (Y > 3) at the LHC can make a direct measurement of parton distribution functions (PDFs) in the low x region, x < 10^{-4}. We…

高能物理 - 唯象学 · 物理学 2015-06-12 E. G. de Oliveira , A. D. Martin , M. G. Ryskin

In this talk we discuss the next-to-leading-order electroweak (EW) corrections to W-boson + jet hadroproduction [1] and compare the full result to a simple approximation assuming factorization of EW and QCD corrections for the…

高能物理 - 唯象学 · 物理学 2010-01-15 Ansgar Denner , Stefan Dittmaier , Tobias Kasprzik , Alexander Mück

We comprehensively examine precision predictions for scalar leptoquark pair production at the LHC. In particular, we investigate the impact of lepton $t$-channel exchange diagrams that are potentially relevant in the context of leptoquark…

高能物理 - 唯象学 · 物理学 2022-02-21 Christoph Borschensky , Benjamin Fuks , Anna Kulesza , Daniel Schwartländer

Measuring precisely top-pair-associated processes at hadron colliders will become possible with the upcoming LHC running stages. The increased data statistics will especially enable differential measurements leading to an improved…

高能物理 - 唯象学 · 物理学 2023-09-07 Ansgar Denner , Daniele Lombardi , Giovanni Pelliccioli

We explore the pair production of third-generation scalar leptoquark at the Large Hadron Collider to next-to-leading order accuracy in QCD, matched to parton shower for a precise probing of the stemming model. We propose to tag two boosted…

高能物理 - 唯象学 · 物理学 2024-09-04 Anupam Ghosh , Partha Konar , Debashis Saha , Satyajit Seth

We study higher twist corrections to the perturbative QCD cross sections for ep deep inelastic scattering and the Drell-Yan lepton pair production in pp collision. The corrections arise due to the initial state interaction of the active…

高能物理 - 唯象学 · 物理学 2009-11-10 O. Linnyk , S. Leupold , U. Mosel