Comparison of HORACE and PHOTOS Algorithms for Multi-Photon Emission in the Context of the W Boson Mass Measurement
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 ofW boson mass at Tevatron. Mass fits are performed using a simulation of the CDF II detector.
- Duke Univ., Durham, NC (United States)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Scientific Computing Div.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
Journal ID: ISSN 1687-7357; arXiv eprint number arXiv:1510.02458
- Grant/Contract Number:
- AC02-07CH11359; AC02-05CH11231
- Accepted Manuscript
- Journal Name:
- Advances in High Energy Physics
- Additional Journal Information:
- Journal Volume: 2016; Journal ID: ISSN 1687-7357
- Research Org:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Country of Publication:
- United States
- 97 MATHEMATICS AND COMPUTING; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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