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Title: SIDIS-RC EvGen: A Monte-Carlo event generator of semi-inclusive deep inelastic scattering with the lowest-order QED radiative corrections

Journal Article · · Computer Physics Communications
 [1]; ORCiD logo [1];  [1];  [2];  [3];  [4];  [5];  [1];  [1]
  1. Duke Univ., Durham, NC (United States). Triangle Universities Nuclear Laboratory
  2. Duke Univ., Durham, NC (United States)
  3. Belarusian State University (Belarus)
  4. Argonne National Lab. (ANL), Lemont, IL (United States)
  5. Pennsylvania State Univ. Berks, Reading, PA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

SIDIS-RC EvGen is a C++ standalone Monte-Carlo event generator for studies of semi-inclusive deep inelastic scattering (SIDIS) processes at medium to high lepton beam energies. In particular, the generator contains binary and library components for generating SIDIS events and calculating cross sections for unpolarized or longitudinally polarized beam and unpolarized, longitudinally or transversely polarized target. The structure of the generator incorporates transverse momentum-dependent parton distribution and fragmentation functions, whereby we obtain multi-dimensional binned simulation results, which will facilitate the extraction of important information about the three-dimensional nucleon structure from SIDIS measurements. In order to build this software, we have used recent elaborate QED calculations of the lowest-order radiative effects, applied to the leading order Born cross section in SIDIS. Here, in this paper, we provide details on the theoretical formalism as well as the construction and operation of SIDIS-RC EvGen, e.g., how we handle the event generation process and perform multi-dimensional integration. We also provide example programs, flowcharts, and numerical results on azimuthal transverse single-spin asymmetries.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357; AC05-06OR23177; FG02-03ER41231; PHY-2012002
OSTI ID:
1971785
Alternate ID(s):
OSTI ID: 1961433
Report Number(s):
JLAB-THY-22-3764; arXiv:2210.03785; DOE/OR/23177-5653; TRN: US2313723
Journal Information:
Computer Physics Communications, Vol. 287; ISSN 0010-4655
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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