Journal article
Prompt neutrinos and intrinsic charm at SHiP
The journal of high energy physics, Vol.2019(2), pp.1-40
02/2019
DOI: 10.1007/JHEP02(2019)077
Abstract
We present a new evaluation of the far-forward neutrino plus antineutrino flux and number of events from charm hadron decays in a 400 GeV proton beam dump experiment like the Search for Hidden Particles (SHiP). Using next-to-leading order perturbative QCD and a model for intrinsic charm, we include intrinsic transverse momentum effects and other kinematic angular corrections. We compare this flux to a far-forward flux evaluated with next-to-leading order perturbative QCD, without intrinsic transverse momentum, that used the angular distribution of charm quarks rather than the neutrinos from their decays. The tau neutrino plus antineutrino number of events in the perturbative QCD evaluation is reduced by a factor of about three when intrinsic transverse momentum and the full decay kinematics are included. We show that intrinsic charm contributions can significantly enhance the number of events from neutrinos from charm hadron decays. Measurements of the number of events from tau neutrino plus antineutrino interactions and of the muon charge asymmetry as a function of energy can be used to constrain intrinsic charm models.
Details
- Title: Subtitle
- Prompt neutrinos and intrinsic charm at SHiP
- Creators
- Weidong Bai - University of IowaMary Reno - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The journal of high energy physics, Vol.2019(2), pp.1-40
- DOI
- 10.1007/JHEP02(2019)077
- ISSN
- 1126-6708
- eISSN
- 1029-8479
- Publisher
- Springer Berlin Heidelberg
- Language
- English
- Date published
- 02/2019
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199672002771
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