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Related papers: Six Fermion Production at LC

200 papers

We review the available event generators suited for multi-fermion final state production in the context of physics studies at a future Linear Collider (LC)

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Moretti

I discuss the calculation of cross sections for processes with six and eight fermions in the final state, contributing to single-top production and associated top-Higgs production at a linear collider. I describe the schemes for the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Christian Schwinn

The family of two fermion final states is among the cleanest final states at the International Linear Collider (ILC) project. The package aITALC has been developed for a calculation of their production cross sections, and we present here…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Fleischer , A. Lorca , T. Riemann

We compute several total and differential cross sections relevant to top and WWZ physics at future $e^+e^-$ colliders taking into account the full set of Feynman diagrams for six fermion final states. We also include in our calculations…

High Energy Physics - Phenomenology · Physics 2009-10-30 Elena Accomando , Alessandro Ballestrero , Marco Pizzio

The status of predictions for fermion-pair production at LEP is summarized with emphasis on LEP2 energies and on the physics interest there. Some numerical comparisons with other programs are performed. We also present first results of a…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Ch. Christova , M. Jack , S. Riemann , T. Riemann

We report on the progress in work on improving precision of the standard model theoretical predictions for the top quark pair production and decay into six fermions at a linear collider. Two programs have been combined into a single Monte…

High Energy Physics - Phenomenology · Physics 2016-09-06 Adam Biernacik , Karol Kolodziej , Alejandro Lorca , Tord Riemann

PHASE is a Monte Carlo event generator, under construction, for all Standard Model processes with six fermions in the final state at the LHC. It employs the full set of tree level Feynman diagrams, taking into account fermion masses for b…

High Energy Physics - Phenomenology · Physics 2011-01-27 E. Accomando , A. Ballestrero , E. Maina

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…

High Energy Physics - Phenomenology · Physics 2007-05-23 Karol Kolodziej

We compute several total and differential cross sections relevant to top, WWZ and Higgs physics at future $e^+e^-$ colliders taking into account the full set of Feynman diagrams for six fermion final states. We examine in particular charged…

High Energy Physics - Phenomenology · Physics 2016-09-06 Elena Accomando , Alessandro Ballestrero , Marco Pizzio

The production of a t\bar{t}-pair and its decay into a 6 fermion final state of different flavours in e+e- annihilation at centre of mass energies typical for linear colliders is analyzed in the framework of the Standard Model. The results…

High Energy Physics - Phenomenology · Physics 2011-09-13 Karol Kolodziej

WPHACT 2.0 is the new fully massive version of a MC program and unweighted event generator which computes all Standard Model processes with four fermions in the final state at e^+ e^- colliders. The program can now generate unweighted…

High Energy Physics - Phenomenology · Physics 2014-11-17 E. Accomando , A. Ballestrero , E. Maina

The production of four fermions plus a visible photon in electron-positron collisions is analyzed, with particular emphasis on the LEP2 energy range. The study is based on the calculation of exact matrix elements, including the effect of…

High Energy Physics - Phenomenology · Physics 2011-09-13 G. Montagna , M. Moretti , O. Nicrosini , M. Osmo , F. Piccinini

The six-fermion production processes $e^+e^-\to q\bar q l^+ l^-\nu\bar\nu$, with all the lepton flavours and $q=u,d,c,s$, relevant to the study of the intermediate-mass Higgs boson at future $e^+e^-$ linear colliders, are analysed. A Monte…

High Energy Physics - Phenomenology · Physics 2011-09-13 F. Gangemi , G. Montagna , M. Moretti , O. Nicrosini , F. Piccinini

The production of an intermediate-mass Higgs boson in processes of the kind $e^+ e^- \to 6$ fermions at the energies of future linear colliders is studied. The recently developed and fully automatic algorithm/code ALPHA is used to compute…

High Energy Physics - Phenomenology · Physics 2011-09-13 G. Montagna , M. Moretti , O. Nicrosini , F. Piccinini

The first version of a computer program "eett6f" for calculating cross sections of e+e- -> 6 fermions processes relevant for a t\bar{t}-pair production and decay at centre of mass energies typical for linear colliders is presented. "eett6f…

High Energy Physics - Phenomenology · Physics 2009-11-07 Karol Kolodziej

Three studies on six-fermion production processes are presented, in which the production of an intermediate-mass Higgs boson, the top-quark physics and the analysis of possible anomalous quartic gauge couplings are considered. A Monte Carlo…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Gangemi , G. Montagna , M. Moretti , O. Nicrosini , F. Piccinini

The class of six-fermion production processes at e+e- colliders comprises very interesting particle reactions, such as the production of top-quark pairs and of Higgs bosons in the intermediate Higgs mass range, the scattering of massive…

High Energy Physics - Phenomenology · Physics 2009-11-07 Stefan Dittmaier , Markus Roth

I present a systematic study of all possible four leptons final states from $\gamma\gamma$ collisions. It is given a detailed account of fermion masses effects which are sizable since several collinear and $t$ channel enancements occur. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mauro Moretti

This paper studies the electroweak production of all possible four fermion states in e+ e- collisions. Since the methods employed to evaluate the complete matrix elements and phase space are very general, all four fermion final states in…

High Energy Physics - Phenomenology · Physics 2009-10-28 F. A. Berends , R. Kleiss , R. Pittau

WPHACT (W W and Higgs Physics with PHACT) is a MC program and unweighted event generator which computes all Standard Model processes with four fermion in the final state at $e^+ e^-$ colliders. It is based on an helicity amplitude method…

High Energy Physics - Phenomenology · Physics 2011-01-27 Elena Accomando , Alessandro Ballestrero
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