PYTHIA hadronization process tuning in the GENIE neutrino interaction generator - INSPIRE

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PYTHIA hadronization process tuning in the GENIE neutrino interaction generator

Dec 13, 2014

13 pages

Published in:

J.Phys.G 42 (2015) 11, 115004

Published: Oct 15, 2015

e-Print:

1412.4301 [hep-ex]

DOI:

10.1088/0954-3899/42/11/115004

Report number:

CETUP*-PREPRINT-NUMBER:-CETUP2014-007,
CETUP*-PREPRINT-NUMBER:-CETUP2014-008

View in:

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Abstract: (IOP)

Next-generation neutrino oscillation experiments utilize details of hadronic final states to improve the precision of neutrino interaction measurements. The hadronic system was often neglected or poorly modeled in the past, but they have significant effects on high precision neutrino oscillation and cross-section measurements. Among the physics of hadronic systems in neutrino interactions, the hadronization model controls multiplicities and kinematics of final state hadrons from the primary interaction vertex. For relatively high invariant mass events, many neutrino experiments rely on the PYTHIA program. Here, we show a possible improvement of this process in neutrino event generators, by utilizing expertise from the HERMES experiment. Finally, we estimate the impact on the systematics of hadronization models for neutrino mass hierarchy analysis using atmospheric neutrinos such as the PINGU experiment.

Note:

v1: 9 pages, 7 figures, proceedings of the CETUP*-Workshop on Neutrino Interactions, July 22-31, 2014 at Lead/Dead Wood, South Dakota, USA. v2: 15 pages, 8 figures, 1 table, will be published by Journal of Physics G: Nuclear and Particle Physics (IoP)

Hadrons
Neutrino interactions
Neutrinos
Neutrino oscillations
Experiment design
neutrino: interaction
neutrino: oscillation
hadronization: model
neutrino: atmosphere
neutrino: mass: hierarchy

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