Comparison of HORACE and PHOTOS Algorithms for Multi-Photon Emission in the Context of the W Boson Mass Measurement

Kotwal, Ashutosh V.; Jayatilaka, Bodhitha

doi:10.1155/2016/1615081

Title: Comparison of HORACE and PHOTOS Algorithms for Multi-Photon Emission in the Context of the W Boson Mass Measurement

Journal Article · Fri Jan 01 00:00:00 EST 2016 · Advances in High Energy Physics

DOI:https://doi.org/10.1155/2016/1615081· OSTI ID:1226336

Kotwal, Ashutosh V. ^[1]; Jayatilaka, Bodhitha ^[2]

Duke Univ., Durham, NC (United States)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Scientific Computing Div.

W boson mass measurement is sensitive to QED radiative corrections due to virtual photon loops and real photon emission. The largest shift in the measured mass, which depends on the transverse momentum spectrum of the charged lepton from the boson decay, is caused by the emission of real photons from the final-state lepton. There are a number of calculations and codes available to model the final-state photon emission. We perform a detailed study, comparing the results from HORACE and PHOTOS implementations of the final-state multiphoton emission in the context of a direct measurement of W boson mass at Tevatron. Mass fits are performed using a simulation of the CDF II detector.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-07CH11359; AC02-05CH11231

OSTI ID:: 1226336

Alternate ID(s):: OSTI ID: 1405289

Report Number(s):: FERMILAB-PUB-15-452-CD; arXiv eprint number arXiv:1510.02458

Journal Information:: Advances in High Energy Physics, Vol. 2016; ISSN 1687-7357

Publisher:: HindawiCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 3 works

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Precision Measurement of the W-Boson Mass: Theoretical Contributions and Uncertainties Calame, Carlo Michel Carloni; Chiesa, Mauro; Martinez, Homero arXiv https://doi.org/10.48550/arxiv.1612.02841	text	January 2016

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