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Related papers: Moments for positivity: using Drell-Yan data to te…

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According to extensive theoretical studies of the high energy limit of QCD, inelastic interactions are dominated by the multi-Regge final states. The appropriate gauge-invariant objects, which simultaneously incorporate the transverse…

High Energy Physics - Phenomenology · Physics 2013-04-22 M. A. Nefedov , N. N. Nikolaev , V. A. Saleev

Uncertainties in the parametrization of Parton Distribution Functions are a serious limiting systematic uncertainty in Large Hadron Collider searches for Beyond the Standard Model physics. This is especially true for measurements at high…

High Energy Physics - Phenomenology · Physics 2026-01-27 Yao Fu , Raymond Brock , Daniel Hayden , Chien-Peng Yuan

The production of high invariant mass opposite sign lepton pairs in proton-proton collisions at the LHC is dominated by the Drell-Yan process. In addition to this photon or Z exchange mediated mechanism, gamma-gamma collisions, where…

High Energy Physics - Phenomenology · Physics 2016-06-03 Dimitri Bourilkov

Theories with gapped continuum spectra have gotten some attention, either as pure 4D models like unparticles, or in 5D realizations as certain soft walls constructions. In this paper, we derive experimental bounds from Drell-Yan processes…

High Energy Physics - Phenomenology · Physics 2024-01-17 Ernesto Arganda , Antonio Delgado , Adam Martin , Eugenio Megias , Roberto Morales , Mariano Quiros , Torrey Saxton

We discuss Drell-Yan production of dileptons at high energies in forward rapidity region in a hybrid high-energy approach. This approach uses unintegrated gluon distributions in one proton and collinear quark/antiquark distributions in the…

High Energy Physics - Phenomenology · Physics 2016-04-20 Wolfgang Schäfer , Antoni Szczurek

We show that stringent limits on leptoquarks that couple to first-generation quarks and left-handed electrons or muons can be derived from the spectral shape of the charged-current Drell-Yan process ($p p \to \ell^\pm \nu$) at Run 2 of the…

High Energy Physics - Phenomenology · Physics 2018-08-01 Saurabh Bansal , Rodolfo M. Capdevilla , Antonio Delgado , Christopher Kolda , Adam Martin , Nirmal Raj

This paper describes precision measurements of the transverse momentum $p_\mathrm{T}^{\ell\ell}$ ($\ell=e,\mu$) and of the angular variable $\phi^{*}_{\eta}$ distributions of Drell-Yan lepton pairs in a mass range of 66-116 GeV. The…

High Energy Physics - Experiment · Physics 2020-12-16 ATLAS Collaboration

We study the Drell-Yan cross section differential with respect to the transverse momentum of the produced lepton pair. We consider data with moderate invariant mass Q of the lepton pair, between 4.5 GeV and 13.5 GeV, and similar (although…

High Energy Physics - Phenomenology · Physics 2019-07-31 Alessandro Bacchetta , Giuseppe Bozzi , Martin Lambertsen , Fulvio Piacenza , Julius Steiglechner , Werner Vogelsang

The forward-backward asymmetry in Drell-Yan production and the effective leptonic electroweak mixing angle are measured in proton-proton collisions at $\sqrt{s}$ = 13 TeV, collected by the CMS experiment and corresponding to an integrated…

High Energy Physics - Experiment · Physics 2025-05-22 CMS Collaboration

The diphoton channel at lepton colliders, $e^+e^- (\mu^+\mu^-) \to \gamma \gamma$, has a remarkable feature that the leading new physics contribution comes only from dimension-eight operators. This contribution is subject to a set of…

High Energy Physics - Phenomenology · Physics 2022-07-06 Jiayin Gu , Lian-Tao Wang , Cen Zhang

Next-to-leading order electroweak and QCD radiative corrections to the Drell-Yan process with high dimuon masses for experiments CMS LHC at CERN have been studied in fully differential form. The FORTRAN code READY for numerical analysis of…

High Energy Physics - Phenomenology · Physics 2015-06-17 Vladimir Zykunov

We calculate the angular distribution of the lepton produced in the Drell-Yan reaction taking into account pion bound state effects. We work in the kinematic region where one of the pion constituents goes far off-shell, which allows us to…

High Energy Physics - Phenomenology · Physics 2009-09-25 A. Brandenburg , S. J. Brodsky , V. V. Khoze , D. Müller

The high-energy tails of charged- and neutral-current Drell-Yan processes provide important constraints on the light quark and anti-quark parton distribution functions (PDFs) in the large-x region. At the same time, short-distance new…

High Energy Physics - Phenomenology · Physics 2021-08-04 Admir Greljo , Shayan Iranipour , Zahari Kassabov , Maeve Madigan , James Moore , Juan Rojo , Maria Ubiali , Cameron Voisey

We consider the production of $b\bar b$ quarks and Drell-Yan lepton pairs at LHC conditions focusing attention on the total transverse momentum of the produced pair and on the azimuthal angle between the momenta of the outgoing particles.…

High Energy Physics - Phenomenology · Physics 2017-04-25 S. P. Baranov , H. Jung , A. V. Lipatov , M. A. Malyshev

Distributions of transverse momentum $p_T^{ll}$ and the angular variable $\phi^*_\eta$ of Drell--Yan lepton pairs are measured in 20.3 fb$^{-1}$ of proton--proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector at the LHC.…

High Energy Physics - Experiment · Physics 2016-06-02 ATLAS Collaboration

We study the effects of dimension-8 operators on Drell-Yan production of lepton pairs at the Large Hadron Collider (LHC). We identify a class of operators that leads to novel angular dependence not accounted for in current analyses. The…

High Energy Physics - Phenomenology · Physics 2020-08-26 Simone Alioli , Radja Boughezal , Emanuele Mereghetti , Frank Petriello

The dilepton decay channels provide clean signatures and are an ideal hunting ground for high mass resonant, like Z', or non-resonant, like contact interactions or extra dimensions, searches at the LHC. The production of high invariant mass…

High Energy Physics - Phenomenology · Physics 2017-01-24 Dimitri Bourilkov

We investigate the angular distribution of the lepton pair in the process $p \bar{p} \rightarrow \gamma^{\ast} + X \rightarrow \ell^+\ell^- + X$, where the virtual photon is produced at high transverse momentum. The angular distribution of…

High Energy Physics - Phenomenology · Physics 2009-10-28 E. Mirkes , J. Ohnemus

Measurements of the forward-backward asymmetry in neutral-current Drell-Yan di-lepton production have primarily been used for determinations of the weak mixing angle $\theta_W$. We observe that, unlike the case of Run-I of the Large Hadron…

High Energy Physics - Phenomenology · Physics 2019-03-19 Elena Accomando , Juri Fiaschi , Francesco Hautmann , Stefano Moretti

Predictions for Drell--Yan lepton pair production at low dilepton mass and small x at the LHC usually have a large scale dependence. This can be decreased by determining an "optimal factorization scale". In this paper, we reduce this scale…

High Energy Physics - Phenomenology · Physics 2020-04-15 M. Kendi Yamasaki , Emmanuel G. de Oliveira