Extra Lepton Pair Emission Corrections to Drell--Yan Processes in PHOTOS and SANC

Antropov, S.; Arbuzov, A. B.; Sadykov, R.; Wa̧s, Z.

doi:10.5506/aphyspolb.48.1469

Cited by 10 publications

(7 citation statements)

References 23 publications

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“…We do not aim at repeating, this what was already documented in Ref. [23] and in references therein, but we concentrate on recent changes, introduced for Belle II applications.…”

Section: Status Of Tauola Monte Carlo Initializationsmentioning

confidence: 85%

“…Numerical tests for pair emission algorithm are published [23], and following updates on the program presented in [9]. This update opened up new possibilities, in particular, generation of lepton pairs in the process e − e + → τ − τ + nγ with τ decays and implementation into final state of an exotic particle X motivated by new physics.…”

Section: Photos Monte Carlo For Bremsstrahlung and Lepton Pair Emissionmentioning

confidence: 99%

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Monte Carlo Event Generator updates, for tau pair events at Belle II energies

Banerjee¹,

Biswas²,

Przedzinski³

et al. 2021

Preprint

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The Monte Carlo for lepton pair production and τ decays consist of KKMC for lepton pair production, tauola for τ lepton decays and photos for radiative corrections in decays.An effort for adaptation of the system for precision data to be collected at Belle II experiment lead to extension of phase space generation modules both in photos and tauola to enable decays and/or radiative corrections of additional light lepton pairs. The phase-space and matrix element parts of the programs are separated, that is why extension to processes where lepton pair is produced through narrow resonances, like dark photon, was straight forward.In the present version of tauola, list of τ decay channels is enriched with multitude of exotic ones, useful for searches of new physics. The hadronic currents parametrizations of main decay channels is prepared for basic simulation in the experiment. The basis for future work on precise fits of hadronic currents including Machine Learning is retained, but development of necessary software solutions is left for the forthcoming years.Presented programs versions are available in stand-alone format from gitlab or through the basf2 system of Belle II software. Official distribution web pages, documenting programs tests, are retained but not necessarily up to the date.

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“…We do not aim at repeating, this what was already documented in Ref. [23] and in references therein, but we concentrate on recent changes, introduced for Belle II applications.…”

Section: Status Of Tauola Monte Carlo Initializationsmentioning

confidence: 85%

Section: Photos Monte Carlo For Bremsstrahlung and Lepton Pair Emissionmentioning

confidence: 99%

Monte Carlo Event Generator updates, for tau pair events at Belle II energies

Banerjee¹,

Biswas²,

Przedzinski³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Approximations were introduced, but at the same time framework for tests and extensions beyond soft pair emissions (if needed), was prepared and exploited later in Refs. [23,24].…”

Section: Non Qed Bremsstrahlung Processesmentioning

confidence: 99%

Symmetries of spin amplitudes: applications for factorization and Monte Carlo solutions

Wa̧s¹

2022

Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2021)

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For phenomenology of High Energy Physics experiments, Known Physics and New Physics phenomena, predictions need to be available. One has to take into account results of diverse research activities. On experiments side this includes control of detector acceptance and its response details, also observable definitions and different types of background subtractions. On theoretical side one needs to keep in mind results on: higher order matrix elements calculations, structure functions, evolution kernels, Monte Carlo and/or semi-analytic integration algorithms, algebraic manipulation programs. I will not address foundations of Yennie-Frautchi-Suura exclusive exponentiation, or of factorizations used in QCD. That would be too broad a subject, obscuring the main purpose of my talk. I will concentrate on the investigation of spin amplitude gauge invariant parts and how they were useful in case of my work.

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“…Numerical tests for pair emission algorithm are published [14], and updates on the program necessary due to evolution how event records contents have to be understood are continuously updated, see changelog.txt of Ref. [13].…”

Section: Photos Monte Carlo For Bremsstrahlung: Its Systematic Uncertmentioning

confidence: 99%

Monte Carlo, fitting and Machine Learning for Tau leptons

Cherepanov

Richter-Wąs

Wa̧s

2019

SciPost Phys. Proc.

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Status of τ lepton decay Monte Carlo generator TAUOLA, and its main recent applications are reviewed. It is underlined, that in recent efforts on development of new hadronic currents, the multi-dimensional nature of distributions of the experimental data must be taken with a great care. Studies for H → τ τ ; τ → hadrons indeed demonstrate that multi-dimensional nature of distributions is important and available for evaluation of observables where τ leptons are used to constrain experimental data. For that part of the presentation, use of the TAUOLA program for phenomenology of H and Z decays at LHC is discussed, in particular in the context of the Higgs boson parity measurements with the use of Machine Learning techniques. Some additions, relevant for QED lepton pair emission and electroweak corrections are mentioned as well.

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Extra Lepton Pair Emission Corrections to Drell--Yan Processes in PHOTOS and SANC

Cited by 10 publications

References 23 publications

Monte Carlo Event Generator updates, for tau pair events at Belle II energies

Monte Carlo Event Generator updates, for tau pair events at Belle II energies

Symmetries of spin amplitudes: applications for factorization and Monte Carlo solutions

Monte Carlo, fitting and Machine Learning for Tau leptons

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