English
Related papers

Related papers: Automatic Calculation of SUSY-particle Production

200 papers

We study the SUSY flavor problem in the MSSM, we are namely interested in estimating the size of the SUSY flavor problem and its dependence on the MSSM parameters. For that, we made a numerical analysis randomly generating the entries of…

High Energy Physics - Phenomenology · Physics 2010-02-27 J. L. Diaz-Cruz , O. Felix-Beltran , M. Gomez-Bock , R. Noriega-Papaqui , A. Rosado

In this paper we describe the implementation of the SM process $\gamma\gamma\to\gamma\gamma$ through a fermion and boson loops into the framework of SANC system. The computations of this process takes into account non-zero mass of loop…

High Energy Physics - Phenomenology · Physics 2010-12-06 D. Bardin , L. Kalinovskaya , E. Uglov

Recent progress in the calculation of the two-loop on-shell mass counterterms within the electroweak Standard Model (SM) for the massive particles are discussed. We are in progress of developing a package for full two-loop SM calculations…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Jegerlehner , M. Yu. Kalmykov

A new procedure is developed which enables one to start from the quark and lepton mass and mixing data at the low scale and construct mass matrices which exhibit simple SO(10) structure at the SUSY GUT scale. This approach is applied to the…

High Energy Physics - Phenomenology · Physics 2010-11-01 Carl H. Albright , Satyanarayan Nandi

We review recent progress towards automated higher-order calculations in the MSSM with complex parameters (cMSSM). The consistent renormalization of all relevant sectors of the cMSSM and the inclusion into the FeynArts/FormCalc framework…

High Energy Physics - Phenomenology · Physics 2014-07-02 T. Hahn , S. Heinemeyer , F. von der Pahlen , H. Rzehak , C. Schappacher

We propose a viable theory based on the $SU(3)_C\times SU(3)_L\times U(1)_X$ gauge group supplemented by the $S_4$ discrete group together with other various symmetries, whose spontaneous breaking gives rise to the current SM fermion mass…

High Energy Physics - Phenomenology · Physics 2020-03-02 A. E. Cárcamo Hernández , Nicolás A. Pérez-Julve , Yocelyne Hidalgo Velásquez

We present and publish a Mathematica package, which can be used to automatically obtain any numerical MSSM input parameter from SUSY spectrum generators, which follow the SLHA standard, like Spheno, Softsusy, Suseflav or Suspect. The…

High Energy Physics - Phenomenology · Physics 2015-06-17 Peter Marquard , Nikolai Zerf

This article presents a new method to compute matrices from numerical simulations based on the ideas of sparse sampling and compressed sensing. The method is useful for problems where the determination of the entries of a matrix constitutes…

Chemical Physics · Physics 2014-10-21 Jacob N. Sanders , Xavier Andrade , Alán Aspuru-Guzik

We investigate the sparticle production processes $e\gamma\goto \sele\sz1$ and $\gamma\gamma\goto \sfermion\overline{\sfermion}$ at high energy $e\gamma$ and $\gamma\gamma$ colliders in the framework of the minimal supersymmetric standard…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tadashi Kon

We have developed an extended framework, named GR@PPA, of the GRACE system for hadron collisions. The GRACE system is an automatic Feynman diagram calculation system and an event generator based on this diagram calculation. While the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Soushi Tsuno

We develop a simulation-based method for the online updating of Gaussian process regression and classification models. Our method exploits sequential Monte Carlo to produce a fast sequential design algorithm for these models relative to the…

Computation · Statistics 2010-07-07 Robert B. Gramacy , Nicholas G. Polson

We discuss the associated W+/- H-/+ production in p p collision for the Large Hadron Collider. A complete one-loop calculation of the loop-induced subprocess g g -> W+/- H-/+ is presented in the framework of the Minimal Supersymmetric…

High Energy Physics - Phenomenology · Physics 2009-09-25 Oliver Brein , Wolfgang Hollik , Shinya Kanemura

Strategy and results for complete one-loop computations in the Minimal Supersymmetric Standard Model are reviewed, with applications to the calculation of SUSY mass spectra and SUSY-particle processes. Determination of renormalization…

High Energy Physics - Phenomenology · Physics 2009-11-10 T. Fritzsche , W. Hollik

A computer program ee4fgamma for calculating cross sections of any four fermion final state of e+e--annihilation at high energy and the corresponding bremsstrahlung reaction that is possible in the framework of the Standard Model is…

High Energy Physics - Phenomenology · Physics 2008-12-18 Karol Kolodziej , Fred Jegerlehner

This review gives an overview on the research of algorithms for dynamical fermions used in large scale lattice QCD simulations. First a short overview on the state-of-the-art of ensemble generation at the physical point is given. Followed…

High Energy Physics - Lattice · Physics 2024-02-20 Jacob Finkenrath

The computation of higher order processes very often involves a large number of diagrams. In addition, it is in general not possible to solve the occurring integrals explicitly and expansions in small quantities have to be performed. This…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Steinhauser

A full account is given of the procedure used by the authors to construct an SO(10) supersymmetric grand unified model of the fermion mass matrices. Various features of the model which gives remarkably accurate results for the quark and…

High Energy Physics - Phenomenology · Physics 2011-05-12 Carl H. Albright , S. M. Barr

Some algorithms for the numerically exact treatment of fermion determinants are summarised. This is not supposed to be a review, rather a concise handbook. The audience is expected to have a basic understanding of how to put fermions on a…

Computational Physics · Physics 2026-04-03 Johann Ostmeyer

We present an alternative method to calculate cross sections for multi-parton scattering processes in the Standard Model at leading order. The helicity amplitudes are computed using recursion relations in the number of particles, based on…

High Energy Physics - Phenomenology · Physics 2008-11-26 Costas G. Papadopoulos , Malgorzata Worek

We have calculated the leading Yukawa corrections to the chargino, neutralino and gluino pole masses in the DR-bar scheme in the Minimal Supersymmetric Standard Model (MSSM) with the full set of complex parameters. We have performed a…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Schofbeck , H. Eberl