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A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The decay angle…

高能物理 - 实验 · 物理学 2012-08-27 the CMS Collaboration

Measurements of four-lepton differential and integrated fiducial cross-sections in events with two same-flavour, opposite-charge electron or muon pairs are presented. The data correspond to 139 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton-proton…

高能物理 - 实验 · 物理学 2021-07-14 ATLAS Collaboration

High-energy diboson processes at the LHC are potentially powerful indirect probes of heavy new physics, whose effects can be encapsulated in higher-dimensional operators or in modified Standard Model couplings. An obstruction however comes…

高能物理 - 唯象学 · 物理学 2020-07-21 Giuliano Panico , Francesco Riva , Andrea Wulzer

We predict the triple differential cross section of the Drell-Yan process (pbar p -> l^+l^-X) in the kinematical regimes relevant for the upcoming PANDA experiment, using a model that accounts for quark virtuality as well as primordial…

高能物理 - 唯象学 · 物理学 2008-11-26 O. Linnyk , K. Gallmeister , S. Leupold , U. Mosel

We consider the diffractive Drell-Yan process in proton-(anti)proton collisions at high energies in the color dipole approach. The calculations are performed at forward rapidities of the leptonic pair. Effect of eikonalization of the…

高能物理 - 唯象学 · 物理学 2015-05-30 R. S. Pasechnik , B. Z. Kopeliovich

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…

高能物理 - 实验 · 物理学 2016-08-18 Yuri Kulchitsky

Measurements of normalized differential cross sections for top quark pair production are performed in the dilepton decay channels in proton-proton collisions at a center-of-mass energy of 13 TeV. The differential cross sections are measured…

高能物理 - 实验 · 物理学 2018-01-12 Youn Jung Roh

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…

高能物理 - 唯象学 · 物理学 2022-10-19 Xu Li , Ken Mimasu , Kimiko Yamashita , Chengjie Yang , Cen Zhang , Shuang-Yong Zhou

We study Drell-Yan (DY) dilepton production in proton(deuterium)-nucleus and in nucleus-nucleus collisions within the light-cone color dipole formalism. This approach is especially suitable for predicting nuclear effects in the DY cross…

高能物理 - 唯象学 · 物理学 2008-11-26 B. Z. Kopeliovich , J. Raufeisen , A. V. Tarasov , M. B. Johnson

We analyze the potential of future high-energy deep-inelastic scattering (DIS) experiments to probe new physics within the framework of the Standard Model Effective Field Theory (SMEFT). We perform a detailed study of SMEFT probes at a…

高能物理 - 唯象学 · 物理学 2023-06-12 Chiara Bissolotti , Radja Boughezal , Kaan Simsek

We propose a new experimental method to probe the photon parton distribution function inside the proton (photon PDF) at LHC energies. The method is based on the measurement of dilepton production from the $\gamma p\rightarrow\ell^+\ell^-+X$…

高能物理 - 唯象学 · 物理学 2019-06-19 Mateusz Dyndal , Alexander Glazov , Marta Luszczak , Renat Sadykov

A prospective measurement of the differential cross section of \tWZ production with respect to the transverse momentum of the \PZ boson using a general-purpose detector at the High-Luminosity Large Hadron Collider (HL-LHC) is described. The…

高能物理 - 唯象学 · 物理学 2023-06-14 James Keaveney

An analysis is presented based on models of the intrinsic transverse momentum (intrinsic $k_\mathrm{T}$) of partons in nucleons by studying the dilepton transverse momentum in Drell-Yan events. Using parameter tuning in event generators and…

高能物理 - 唯象学 · 物理学 2025-04-10 CMS Collaboration

Measurements of the di- and multiboson production cross sections at the LHC constitute stringent tests of the electroweak sector of the Standard Model and provide a model-independent means to search for new physics at the TeV scale. The…

高能物理 - 实验 · 物理学 2017-08-23 Elena Yatsenko

In scenarios beyond the Standard Model (BSM) characterized by charged ($W^\prime$) or neutral ($Z^\prime$) massive gauge bosons with large width, resonant mass searches are not very effective, so that one has to exploit the tails of the…

高能物理 - 唯象学 · 物理学 2022-02-25 Juri Fiaschi , Francesco Giuli , Francesco Hautmann , Stefano Moretti

The electric dipole moment (EDM) of elementary particles, arising from flavor-diagonal $CP$ violation, serves as a powerful probe for new physics beyond the Standard Model and holds the potential to provide novel insights in unraveling the…

高能物理 - 实验 · 物理学 2023-12-29 Jinlin Fu , Hai-Bo Li , Jian-Peng Wang , Fu-Sheng Yu , Jianyu Zhang

We study the electroweak dilepton production with two forward jets at the LHC, aiming to measure the anomalous triple gauge couplings in the Effective Field Theory (EFT) approach. This process exhibits a distinctive feature, namely, the…

高能物理 - 唯象学 · 物理学 2023-05-23 Haeyun Hwang , Ui Min , Junghyeon Park , Minho Son , Jae Hyeok Yoo

Results are presented from a search for large, extra spatial dimensions in events with either two isolated muons or two isolated electrons. The data are from proton-proton interactions at sqrt(s) = 7 TeV collected with the CMS detector at…

高能物理 - 实验 · 物理学 2013-01-23 CMS Collaboration

A search for signatures of extra dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard model expectation is observed using a data sample collected in…

高能物理 - 实验 · 物理学 2013-01-23 CMS Collaboration

A measurement of the forward-backward asymmetry of pairs of oppositely charged leptons (dimuons and dielectrons) produced by the Drell-Yan process in proton-proton collisions is presented. The data sample corresponds to an integrated…

高能物理 - 实验 · 物理学 2022-08-15 CMS Collaboration