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A correct modelling of the underlying event in proton-proton collisions is important for the proper simulation of kinematic distributions of high-energy collisions. The ATLAS collaboration extended previous studies at 7 TeV with a leading…

High Energy Physics - Experiment · Physics 2016-08-18 Yuri Kulchitsky

This note presents constraints on Standard Model parameters using published and preliminary precision electroweak results obtained at the electron-positron colliders LEP and SLC. The results are compared with precise electroweak…

We study the electroweak phase transition in three scalar extension models beyond the Standard Model. Assuming new scalars are decoupled at some heavy scale, we use the covariant derivative expansion method to derive all of the dimension-6…

High Energy Physics - Phenomenology · Physics 2018-04-10 Qing-Hong Cao , Fa Peng Huang , Ke-Pan Xie , Xinmin Zhang

We investigate the Drell-Yan transverse momentum distribution in the framework of the color dipole approach. Special attention is paid to parton saturation effects at high energies. Predictions at LHC energies ($\sqrt{s}=14$ TeV) are given…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. A. Betemps , M. B. Gay Ducati , M. V. T. Machado , J. Raufeisen

Moments of the leptonic angular distribution in the Drell-Yan process have recently been shown to be sensitive probes of a specific class of dimension-8, four-fermion operators in the Standard Model Effective Field Theory, involving a pair…

High Energy Physics - Phenomenology · Physics 2022-10-19 Xu Li , Ken Mimasu , Kimiko Yamashita , Chengjie Yang , Cen Zhang , Shuang-Yong Zhou

Differential cross sections for the Drell-Yan process, including Z boson production, using the dimuon decay channel are measured in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of 8.16 TeV. A data sample recorded…

High Energy Physics - Experiment · Physics 2021-06-01 CMS Collaboration

We suggest the measurement of Drell-Yan (DY) lepton pairs in p-Pb collisions at the LHC (sqrt(s)=5.02 TeV) in order to disentangle the relative contributions of shadowing and coherent energy loss in quarkonium production off nuclei. The…

High Energy Physics - Phenomenology · Physics 2017-02-01 François Arleo , Stéphane Peigné

A measurement is presented of the effective leptonic weak mixing angle ($\sin^2\theta^{\ell}_{\text{eff}}$) using the forward-backward asymmetry of Drell-Yan lepton pairs ($\mu\mu$ and ee) produced in proton-proton collisions at $\sqrt{s}=$…

High Energy Physics - Experiment · Physics 2018-09-06 CMS Collaboration

Measurement at Hadron colliders of neutral- and charged-current Drell-Yan production provide essential constraints in the determination of parton distribution functions. Experimentally, they have reached percent level precision, challenging…

The Large Hadron Collider (LHC) is sensitive to new heavy gauge bosons that produce narrow peaks in the dilepton invariant mass spectrum up to about $m_{Z'}\sim 5$ TeV. $Z'$s that are too heavy to produce directly can reveal their presence…

High Energy Physics - Phenomenology · Physics 2018-03-14 Simone Alioli , Marco Farina , Duccio Pappadopulo , Joshua T. Ruderman

We explore the search sensitivity for signals of large extra dimensions at hadron colliders via the Drell-Yan process pp -> l+ l- + E_T(miss) X (l = e,mu) where the missing transverse energy is the result of escaping Kaluza-Klein gravitons.…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. Han , D. Rainwater , D. Zeppenfeld

Continuing with our investigations of the expected sizes of multiple photon radiative effects in heavy gauge boson production with decay to charged lepton pairs in the context of the precision physics of the LHC, using \KK{MC}-hh 4.22 we…

High Energy Physics - Phenomenology · Physics 2021-08-02 S. Jadach , B. F. L. Ward , S. A. Yost , Z. A. Was

We consider neutral- and charged-current Drell Yan lepton-pair production at hadron colliders, and include dominant classes of electroweak and mixed QCD-electroweak corrections to all orders in perturbation theory. The accurate description…

High Energy Physics - Phenomenology · Physics 2024-04-24 Luca Buonocore , Luca Rottoli , Paolo Torrielli

The measurements of electroweak sector of the Standard Model are presented, including most recent results from LEP, Tevatron and HERA colliders. The robustness of the Standard Model is illustrated with the precision measurements, the…

High Energy Physics - Experiment · Physics 2009-11-11 Cristinel Diaconu

The prospects for electroweak measurements at the Large Hadron Collider (LHC) are discussed. In addition to high-luminosity results, special emphasis is placed on early start-up measurements with a total luminosity ranging from 10/pb to…

High Energy Physics - Experiment · Physics 2019-08-14 Martin W. Grunewald

We apply the leading and sub-leading electroweak (EW) corrections to the Drell-Yan process of the neutralino pair production at proton-proton collision, in order to calculate the effects of the these corrections on the neutralino pair…

High Energy Physics - Phenomenology · Physics 2013-07-16 A. I. Ahmadov , M. Demirci

This report was prepared in the context of the LPCC "Electroweak Precision Measurements at the LHC WG" and summarizes the activity of a subgroup dedicated to the systematic comparison of public Monte Carlo codes, which describe the…

There are many models beyond the standard model which include electroweakly interacting massive particles (EWIMPs), often in the context of the dark matter. In this paper, we study the indirect search of EWIMPs using a precise measurement…

High Energy Physics - Phenomenology · Physics 2019-02-19 So Chigusa , Yohei Ema , Takeo Moroi

Many extensions of the standard model (SM) involve new massive particles charged under the electroweak gauge symmetry. The electroweakly interacting new particles affect various SM processes through radiative corrections. We discuss the…

High Energy Physics - Phenomenology · Physics 2018-07-04 Shigeki Matsumoto , Satoshi Shirai , Michihisa Takeuchi

We present a detailed study of the production of a high transverse-momentum lepton pair at hadron colliders, which includes the exact O(alpha) electroweak corrections properly matched with leading logarithmic effects due to multiple photon…

High Energy Physics - Phenomenology · Physics 2009-04-17 C. M. Carloni Calame , G. Montagna , O. Nicrosini , A. Vicini
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