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Title: Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production

Abstract

Many existing or proposed intensity-frontier search experiments look for decay signatures of light longlived particles (LLPs), highly displaced from the interaction point, in a distant detector that is well-shielded from the StandardModel background. This approach is, however, limited to new particles with decay lengths similar to or larger than the baseline of those experiments. In this study, we discuss how this basic constraint can be overcome in non-minimal beyond standard model scenarios. If more than one light new particle is present in the model, an additional secondary production of LLPs may take place right in front of the detector, opening this way a new lifetime regime to be probed.We illustrate the prospects of such searches in the future experiments FASER, MATHUSLA, and SHiP, for representative models, emphasizing possible connections to dark matter or an anomalous magnetic moment of muon. We also analyze additional advantages from employing dedicated neutrino detectors placed in front of the main decay volume.

Authors:
ORCiD logo; ORCiD logo; ; ORCiD logo
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; National Science Centre of Poland (NCN); European Regional Development Fund; National Science Foundation (NSF); Science and Technology Facilities Council (STFC); Ministry of Science and Higher Education
OSTI Identifier:
1619874
Alternate Identifier(s):
OSTI ID: 1632059
Grant/Contract Number:  
AC02-76SF00515; 2015/18/A/ST2/00748; PHY-1607611; ST/P000800/1; 1190/E-78/STYP/14/2019; 39083149
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Jodłowski, Krzysztof, Kling, Felix, Roszkowski, Leszek, and Trojanowski, Sebastian. Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.095020.
Jodłowski, Krzysztof, Kling, Felix, Roszkowski, Leszek, & Trojanowski, Sebastian. Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production. United States. doi:https://doi.org/10.1103/PhysRevD.101.095020
Jodłowski, Krzysztof, Kling, Felix, Roszkowski, Leszek, and Trojanowski, Sebastian. Fri . "Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production". United States. doi:https://doi.org/10.1103/PhysRevD.101.095020.
@article{osti_1619874,
title = {Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production},
author = {Jodłowski, Krzysztof and Kling, Felix and Roszkowski, Leszek and Trojanowski, Sebastian},
abstractNote = {Many existing or proposed intensity-frontier search experiments look for decay signatures of light longlived particles (LLPs), highly displaced from the interaction point, in a distant detector that is well-shielded from the StandardModel background. This approach is, however, limited to new particles with decay lengths similar to or larger than the baseline of those experiments. In this study, we discuss how this basic constraint can be overcome in non-minimal beyond standard model scenarios. If more than one light new particle is present in the model, an additional secondary production of LLPs may take place right in front of the detector, opening this way a new lifetime regime to be probed.We illustrate the prospects of such searches in the future experiments FASER, MATHUSLA, and SHiP, for representative models, emphasizing possible connections to dark matter or an anomalous magnetic moment of muon. We also analyze additional advantages from employing dedicated neutrino detectors placed in front of the main decay volume.},
doi = {10.1103/PhysRevD.101.095020},
journal = {Physical Review D},
number = 9,
volume = 101,
place = {United States},
year = {2020},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
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DOI: https://doi.org/10.1103/PhysRevD.101.095020

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Cited by: 1 work
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