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We summarize calculations of the cross section for top quark production at hadron colliders within the context of perturbative quantum chromodynamics, including resummation of the effects of initial-state soft gluon radiation to all orders…

High Energy Physics - Phenomenology · Physics 2007-05-23 Edmond L. Berger , Harry Contopanagos

The status of the theoretical predictions for the top-anti top production in hadronic collisions is shortly reviewed, paying a articular attention to the analytic calculation of the two-loop QCD corrections to the parton-level matrix…

High Energy Physics - Phenomenology · Physics 2010-12-02 R. Bonciani , A. Ferroglia , T. Gehrmann , A. von Manteuffel , C. Studerus

We present the next-to-leading-order cross sections of the heavy quark-antiquark pair production in polarized photon-photon collision for the general case of photon polarizations. The numerical results for top-antitop production cross…

High Energy Physics - Phenomenology · Physics 2009-10-31 George Jikia , Avto Tkabladze

We calculate the one-loop non-factorizable QCD corrections to the production and decay of pairs of top quarks at various collider experiments. These non-factorizable corrections interconnect the different production and decay stages of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 W. Beenakker , F. A. Berends , A. P. Chapovsky

We calculate the one-loop supersymmetric electroweak-like and QCD-like corrections to the top-quark pair-production cross section at the Tevatron, including the important effects of non-degenerate top-squarks and left-right top-squark…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Kim , J. Lopez , D. Nanopoulos , R. Rangarajan

We present the first calculation of QED radiative corrections to deep-inelastic electron-photon scattering in terms of those variables that are reconstructed in measurements of the photon structure function in electron-positron collisions.…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Laenen , G. A. Schuler

We calculate the electroweak and QCD corrections to W-W+ -> tt and ZZ -> tt. We also consider the interplay of these corrections with the effect of anomalous interactions that affect the massive weak bosons and the top. The results at the…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Bouayed , F. Boudjema

We present the most recent measurements of single top quark production cross section by the CDF and D0 experiments at the Fermilab Tevatron Collider and the ATLAS and CMS experiments at the Large Hadron Collider (LHC). The data were…

High Energy Physics - Experiment · Physics 2014-10-14 Chang-Seong Moon

In this Thesis we have investigated some effects appearing in top quark observables in the framework of the Minimal Supersymmetric Standard Model (MSSM). We have computed the radiative corrections to some top quark observables, using the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jaume Guasch

The production of several vector bosons in $\gamma\gamma$-interactions is the best place to search directly for any anomalous behavior of triple and quartic couplings. A few anomalous quartic boson operators are considered in the paper. A…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. Marfin , V. Mossolov , T. Shishkina

A new method for computing hadronic effects on electroweak radiative corrections to low-energy weak interaction semileptonic processes is described. It employs high order perturbative QCD results originally derived for the Bjorken sum rule…

High Energy Physics - Phenomenology · Physics 2009-11-11 William J. Marciano , Alberto Sirlin

A parton shower method for the photonic radiative correction is applied to the single W-boson production processes. The energy scale for the evolution of the parton shower is determined so that the correct soft-photon emission is…

High Energy Physics - Phenomenology · Physics 2009-01-07 Y. Kurihara , J. Fujimoto , T. Ishikawa , Y. Shimizu , K. Kato , K. Tobimatsu , T. Munehisa

Single production of top quarks at hadron colliders via $gW$ fusion is examined as a probe of possible anomalous chromomagnetic and/or chromoelectric moment type couplings between the top and gluons. We find that this channel is far less…

High Energy Physics - Phenomenology · Physics 2009-10-28 Thomas G. Rizzo

A study of single top quark production via flavor changing neutral current interactions at $tq\gamma$ vertices is performed at future circular hadron electron collider. The signal cross sections for the processes $e^{-}p\to e^{-}W^{\pm}q+X$…

High Energy Physics - Phenomenology · Physics 2017-07-28 H. Denizli , A. Senol , A. Yilmaz , I. T. Cakir , H. Karadeniz , O. Cakir

The radiative corrections of the strong and electroweak interactions are calculated at next-to-leading order for Higgs-boson production in the weak-boson-fusion channel at hadron colliders. Specifically, the calculation includes all…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mariano Ciccolini , Ansgar Denner , Stefan Dittmaier

This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at $\sqrt{s}=7$ and 8 TeV corresponding to integrated…

High Energy Physics - Experiment · Physics 2019-12-03 ATLAS , CMS Collaborations

We calculate the one loop corrections to the chromomagnetic dipole moment of the top quark in the framework of the Standard Model, the two Higgs doublet model and the Minimal Supersymmetric Standard Model. In the Standard Model we consider…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Martinez , J. -Alexis Rodriguez , M. Vargas

Radiative processes, where a photon/neutrino is emitted as a result of a collision or decay of a particle, play a central role in atomic, nuclear and particle physics. Their rate is determined by certain off-diagonal matrix elements with…

Nuclear Theory · Physics 2022-09-22 Paulo F. Bedaque , Ratna Khadka , Gautam Rupak , Muhammad Yusf

Top quark production in association with a photon offers a unique test ground for the standard model predictions, as it is sensitive to the top-photon coupling. These processes are rare when compared to standard top pair production, however…

High Energy Physics - Experiment · Physics 2026-02-04 Beatriz Ribeiro Lopes

This paper discusses relativistic corrections to the thermal Coulomb potential for simple atomic systems. The theoretical description of the revealed thermal corrections is carried out within the framework of relativistic quantum…

Atomic Physics · Physics 2021-05-19 D. Solovyev , T. Zalialiutdinov , A. Anikin