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相关论文: Distributions in Four-Fermion Processes

200 篇论文

The increase in luminosity and center of mass energy at the FCC-hh will open up new clean channels where BSM contributions are enhanced at high energy. In this paper we study one such channel, $Wh \to \ell\nu\gamma\gamma$. We estimate the…

高能物理 - 唯象学 · 物理学 2020-10-15 Fady Bishara , Philipp Englert , Christophe Grojean , Marc Montull , Giuliano Panico , Alejo N. Rossia

The past ten years of physics with e+e- colliding experiments at LEP and SLAC have shown the success of these experiments on not only impressively proving the theoretical predictions of the Standard Model (SM), but also to help provide…

高能物理 - 唯象学 · 物理学 2007-05-23 P. Christova , M. Jack , S. Riemann , T. Riemann

Processes of electron-positron annihilation into a pair of fermions were considered. Forward-backward and left-right asymmetries were studied, taking into account polarization of initial and final particles. Complete 1-loop electroweak…

高能物理 - 唯象学 · 物理学 2020-07-24 Andrej Arbuzov , Serge Bondarenko , Lidia Kalinovskaya

We present results of the first calculation of next-to-leading-order electroweak corrections to W-boson pair production at the LHC that fully takes into account leptonic W-boson decays and off-shell effects. Employing realistic event…

高能物理 - 唯象学 · 物理学 2016-06-29 Benedikt Biedermann , Marina Billoni , Ansgar Denner , Stefan Dittmaier , Lars Hofer , Barbara Jager , Lukas Salfelder

Searches for the kinematic selection criteria for estimation of multiple parton interaction fraction in 14 TeV pp collisions are presented using the eikonalization of the cross section implemented in the Herwig++ Monte Carlo event…

高能物理 - 唯象学 · 物理学 2012-06-21 Miroslav Myska

We present the Monte Carlo generator RacoonWW that computes cross sections to all processes e^+ e^- -> 4f and e^+ e^- -> 4f + gamma and calculates the complete O(alpha) electroweak radiative corrections to e^+ e^- -> W W -> 4f in the…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Denner , S. Dittmaier , M. Roth , D. Wackeroth

Radiative corrections to processes that involve the production and subsequent decay of unstable particles are complex due to various theoretical and practical problems. The so-called double-pole approximation offers a way out of these…

高能物理 - 唯象学 · 物理学 2009-10-31 W. Beenakker , F. A. Berends , A. P. Chapovsky

The latest CTEQ6.6 parton distributions, obtained by global analysis of hard scattering data in the framework of general-mass perturbative QCD, are employed to study theoretical predictions and their uncertainties for significant processes…

高能物理 - 唯象学 · 物理学 2008-11-26 P. M. Nadolsky , H. -L. Lai , Q. -H. Cao , J. Huston , J. Pumplin , D. Stump , W. -K. Tung , C. -P. Yuan

This paper considers a single-antenna wirelesspowered communication network (WPCN) over a flat-fading channel. We show that, by using our probabilistic harvestand-transmit (PHAT) strategy, which requires the knowledge of instantaneous full…

信息论 · 计算机科学 2018-07-17 Arman Ahmadian , Hyuncheol Park

We study the non-factorizable corrections to W-pair-mediated four-fermion production in ee annihilation in double-pole approximation. We show how these corrections can be combined with the known corrections to the production and the decay…

高能物理 - 唯象学 · 物理学 2009-09-25 A. Denner , S. Dittmaier , M. Roth

We compute the rapidity distributions of W and Z bosons produced at the Tevatron and the LHC through next-to-next-to leading order in QCD. Our results demonstrate remarkable stability with respect to variations of the factorization and…

高能物理 - 唯象学 · 物理学 2010-11-15 Charalampos Anastasiou , Lance Dixon , Kirill Melnikov , Frank Petriello

Four-fermion processes with a particle lost in the beam pipe are studied at LEP to perform precision tests of the electroweak theory. Leading higher-order QED corrections to such processes are analyzed within the framework of the Structure…

高能物理 - 唯象学 · 物理学 2009-01-07 G. Montagna , M. Moretti , O. Nicrosini , A. Pallavicini , F. Piccinini

After the first observations of W bosons in leptonic interactions, about 4000 WW candidate events per experiment have been collected at LEP2. This data allows the measurement of the WW production cross section at different centre-of-mass…

高能物理 - 实验 · 物理学 2014-11-17 M. Campanelli

Some features of a program 'eett6f' for top quark pair production and decay into six fermions at linear colliders are discussed. Lowest order standard model predictions for cross sections of some six fermion channels and for the top quark…

高能物理 - 唯象学 · 物理学 2007-05-23 Karol Kolodziej

In view of the persisting tension between theoretical predictions and the LHC data for the $pp \to t\bar{t}W^\pm$ production process, we present the state-of-the-art full off-shell NLO QCD result for $pp \to t\bar{t}W^+\, j+X$. We…

高能物理 - 唯象学 · 物理学 2023-09-08 Huan-Yu Bi , Manfred Kraus , Minos Reinartz , Malgorzata Worek

We achieve for the first time NNLO QCD + NLO EW accuracy for doubly polarised WZ inclusive production at the LHC, in the case of fully leptonic decays. Additionally, we provide estimates for missing higher-order uncertainties in QCD…

高能物理 - 唯象学 · 物理学 2025-10-31 Giovanni Pelliccioli , Rene Poncelet

We propose a general framework for finding the ground state of many-body fermionic systems by using feed-forward neural networks. The anticommutation relation for fermions is usually implemented to a variational wave function by the Slater…

强关联电子 · 物理学 2021-12-21 Koji Inui , Yasuyuki Kato , Yukitoshi Motome

Numerical results on non-factorizable corrections to e+e- --> WW --> 4fermions with semi-leptonic and hadronic final states, as well as to e+e- --> ZZ --> 4fermions, are presented. The corrections turn out to be small in comparison to the…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Denner , S. Dittmaier , M. Roth

We study the one-loop corrections to Vector Boson Scattering (in particular $W^+W^-$ elastic scattering) within the framework of effective theories. Re-scattering via intermediate electroweak would-be-Goldstone bosons dominate at high…

高能物理 - 唯象学 · 物理学 2022-07-05 Carlos Quezada-Calonge , Antonio Dobado , Juan José Sanz-Cillero

The program TOPAZ0 was developed for computing a variety of physical observables which are related to the e+e- annihilation into fermion pairs and to the large angle Bhabha scattering around the Z resonance. Among them, the Z parameters or…

高能物理 - 唯象学 · 物理学 2009-10-31 G. Montagna , O. Nicrosini , G. Passarino , F. Piccinini