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Parton distributions with QED corrections open new scenarios for high precision physics. We recall the need for accurate and improved predictions which keeps into account higher order QCD corrections together with electroweak effects. We…

High Energy Physics - Phenomenology · Physics 2022-03-02 Stefano Carrazza

The contribution of the sub-process $\gamma q \to q' l_1\bar{l}_2$ in hadron-hadron interactions is considered. It is a part of one-loop electroweak radiative corrections for the Drell-Yan production of lepton pairs at hadron colliders. It…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. B. Arbuzov , R. R. Sadykov

A measurement of the underlying event (UE) activity in proton-proton collisions at a center-of-mass energy of 7 TeV is performed using Drell--Yan events in a data sample corresponding to an integrated luminosity of 2.2 inverse femtobarns,…

High Energy Physics - Experiment · Physics 2013-01-24 CMS Collaboration

Precision determinations of Standard Model (SM) Electro-Weak (EW) parameters at the Large Hadron Collider (LHC) are dominated by uncertainties due to Parton Distribution Functions (PDFs). Reweighting and profiling techniques are routinely…

High Energy Physics - Phenomenology · Physics 2021-05-26 Juri Fiaschi , Francesco Giuli , Francesco Hautmann , Stefano Moretti

The complete set of ${\cal O}(\alpha)$ QED corrections with soft photon exponentiation to the process $ep \rightarrow eX$ in mixed variables ($y=y_h,Q^2=Q_l^2$) is calculated in the quark parton model, including the lepton-quark…

High Energy Physics - Phenomenology · Physics 2009-10-28 D. Bardin , P. Christova , L. Kalinovskaya , T. Riemann

An overview of recent results on electroweak precision measurements from the CMS Collaboration is presented. Studies of the weak boson differential transverse momentum spectra, Z boson angular coefficients, forward-backward asymmetry of…

High Energy Physics - Experiment · Physics 2017-09-01 Milos Dordevic

The description of the Drell-Yan (DY) transverse momentum spectrum requires matching of fixed order QCD calculations with soft gluon resummation up to all orders in the QCD coupling. It has been noticed in the literature that a consistent…

High Energy Physics - Phenomenology · Physics 2022-03-21 Aleksandra Lelek

The electroweak mixing angle is a fundamental parameter of the theory of electroweak interactions. Its value has been measured precisely at the $\mathrm{Z}$-pole at colliders. In this contribution, we propose to exploit measurements of…

High Energy Physics - Phenomenology · Physics 2022-11-17 Federico Vazzoler , Simone Amoroso , Ekaterina Lipka , Clara Lavinia Del Pio , Mauro Chiesa , Fulvio Piccinini , Alessandro Vicini

We present a comparative study of the invariant mass and rapidity distributions in Drell-Yan lepton pair production, with particular emphasis on the role played by the QCD evolution. We focus our study around the Z resonance ($50 <Q < 200$…

High Energy Physics - Phenomenology · Physics 2010-10-27 Alessandro Cafarella , Claudio Coriano , Marco Guzzi

We consider the production of W and Z bosons in hadron collisions. We present a selection of numerical results obtained through a fully exclusive calculation up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. We include…

High Energy Physics - Phenomenology · Physics 2009-08-11 M. Grazzini

We report on the computation of the angle-between-leptons distribution in Drell-Yan processes. More precisely we study the recently introduced variable phi*, which provides us with a more accurate probe of the low Q_T domain of Z boson…

High Energy Physics - Phenomenology · Physics 2011-07-04 Simone Marzani , Andrea Banfi , Mrinal Dasgupta , Lee Tomlinson

The Drell-Yan massive dilepton production in hadron-hadron collisions provides a unique tool, complementary to Deep Inelastic Scattering, for improving our understanding of hadronic substructure and in particular for testing parton…

High Energy Physics - Phenomenology · Physics 2016-03-15 Eduardo Basso , Claude Bourrely , Roman Pasechnik , Jacques Soffer

We consider the transverse-momentum (q_T) distribution of Drell--Yan lepton pairs produced in hadron collisions. At small values of q_T, we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading…

High Energy Physics - Phenomenology · Physics 2011-03-24 G. Bozzi , S. Catani , G. Ferrera , D. de Florian , M. Grazzini

A short summary of results of recent simulations of (un)polarized Drell-Yan experiments is presented here. Dilepton production in $pp$, $\bar{p}p$, $\pi^-p$ and $\pi^+p$ scattering is considered, for several kinematics corresponding to…

High Energy Physics - Phenomenology · Physics 2017-08-23 Andrea Bianconi

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…

High Energy Physics - Phenomenology · Physics 2016-09-13 Martin Lambertsen , Werner Vogelsang

We review the development in the field of lepton pair production since proposing parton-antiparton annihilation as the mechanism of massive lepton pair production. The basic physical picture of the Drell-Yan model has survived the test of…

High Energy Physics - Phenomenology · Physics 2007-05-23 T-M. Yan

Nonperturbative QCD corrections are important to many low-energy electroweak observables, for example the muon magnetic moment. However, hadronic corrections also play a significant role at much higher energies due to their impact on the…

High Energy Physics - Lattice · Physics 2012-06-15 Dru B. Renner , Xu Feng , Karl Jansen , Marcus Petschlies

The Drell-Yan process is a copious source of lepton pairs at high energy and is measured with great precision at the Large Hadron Collider (LHC). Barring any new light particles, beyond the Standard Model effects can be studied in Drell-Yan…

High Energy Physics - Phenomenology · Physics 2019-03-06 S. Dawson , P. P. Giardino , A. Ismail

We compute differential distributions for Drell-Yan processes at the LHC and the Tevatron colliders at next-to-next-to-leading order in perturbative QCD, including fiducial cuts on the decay leptons in the final state. The comparison of…

High Energy Physics - Phenomenology · Physics 2025-04-09 S. Alekhin , S. Amoroso , L. Buonocore , A. Huss , S. Kallweit , A. Kardos , J. Michel , S. Moch , F. Petriello , L. Rottoli , Z. Trócsányi , M. Wiesemann

Drell-Yan pair production is investigated. We reexamine a model where the quark momentum fraction is defined as the ratio of the corresponding light cone components of the quark and parent nucleon in a naive parton-model approach. It is…

High Energy Physics - Phenomenology · Physics 2010-04-06 Fabian Eichstaedt , Stefan Leupold , Ulrich Mosel