The Metropolis algorithm for on-shell four-momentum phase space

Kharraziha, Hamid; Moretti, Stefano

doi:10.1016/s0010-4655(99)00504-4

Cited by 14 publications

(12 citation statements)

References 18 publications

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“…: SM, MSSM and/or a general Two-Higgs Doublet Model (2HDM) [16]. integrations over the final state phase space (and photon momentum fractions, see below) have been performed by a variety of methods, for cross-checking purposes: by using VEGAS [19], RAMBO [20] and Metropolis [21]. In the case of process (1), we have found agreement with previous literature.…”

supporting

confidence: 79%

Heavy charged Higgs boson production at next generation $\gamma\gamma$ colliders

Kanemura

Moretti

2003

Eur. Phys. J. C

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supporting

confidence: 79%

Heavy charged Higgs boson production at next generation $\gamma\gamma$ colliders

Kanemura

Moretti

2003

Eur. Phys. J. C

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“…The Matrix Elements (MEs) generated account for all off-shellness effects of the particles involved. Two different phase space implemetations were used, an 'ad-hoc one' (based on Metropolis [28]) and a 'blind one' based on RAMBO [29], checked one against the other. The latter was adopted eventually, as it proved the most unbiased one in sampling the multiple resonances existing in each (neutral and charged current) DY channel.…”

Section: Model Implementationmentioning

confidence: 99%

Exploring Drell-Yan signals from the 4D Composite Higgs Model at the LHC

Barducci

Belyaev

Curtis

et al. 2013

J. High Energ. Phys.

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We study the phenomenology of Drell-Yan processes at the Large Hadron Collider for the case of both the neutral and charged current channels within a recently proposed 4-Dimensional formulation of the Minimal Composite Higgs Model. We estimate the integrated and differential event rates at the CERN machine, assuming 14 TeV and data samples of ${\cal O}(100 {\rm{fb}}^{-1})$, as at lower energy and/or luminosity event rates are prohibitively small. We pay particular attention to the presence of multiple resonances in either channel, by showing that in certain region of parameter space some of these can be distinguishable and experimentally accessible in the invariant and/or transverse mass distribution, sampled in either the cross section, the forward-backward asymmetry or both. At the same time, we assess the indirect impact onto the line-shape of the emerging gauge boson resonances, both neutral and charged, of additional heavy fermionic states present in the spectrum of the model. Finally, we show how to exploit in the kinematic selection the fact that the extra neutral and charged gauge boson resonances in composite Higgs models are correlated in mass. Such results rely on a parton level study including a statystical error analysis.Comment: 42 pages, 19 figures, changes for publication in JHE

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“…Still another very interesing class of GPMCSs for the high energy physics, based of the Metropolis algorith [14], is described in Ref. [15].…”

mentioning

confidence: 99%

Foam: A general-purpose cellular Monte Carlo event generator

Jadach

2003

Computer Physics Communications

129

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A general-purpose, self-adapting Monte Carlo (MC) event generator (simulator) Foam is described. The high efficiency of the MC, that is small maximum weight or variance of the MC weight is achieved by means of dividing the integration domain into small cells. The cells can be n-dimensional simplices, hyperrectangles or a Cartesian product of them. The grid of cells, called "foam", is produced in the process of the binary split of the cells. The choice of the next cell to be divided and the position/direction of the division hyperplane is driven by the algorithm which optimizes the ratio of the maximum weight to the average weight or (optionally) the total variance. The algorithm is able to deal, in principle, with an arbitrary pattern of the singularities in the distribution. As any MC generator, Foam can also be used for the MC integration. With the typical personal computer CPU, the program is able to perform adaptive integration/simulation of a relatively small number of dimensions (≤ 16). With the continuing progress in CPU power, this limit will inevitably get shifted to ever higher dimensions. Foam program is aimed (and already tested) as a component of the MC event generators for the high energy physics experiments. A few simple examples of the related applications are presented. Foam code is written in fully object-oriented style, in the C++ language. Two other versions with a slightly limited functionality, are available in the Fortran77 language.

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The Metropolis algorithm for on-shell four-momentum phase space

Cited by 14 publications

References 18 publications

Heavy charged Higgs boson production at next generation $\gamma\gamma$ colliders

Heavy charged Higgs boson production at next generation $\gamma\gamma$ colliders

Exploring Drell-Yan signals from the 4D Composite Higgs Model at the LHC

Foam: A general-purpose cellular Monte Carlo event generator

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