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Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case

Curtin, David and Zurek, Kathryn (2018) Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case. . (Unpublished) http://resolver.caltech.edu/CaltechAUTHORS:20190621-073204565

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Abstract

We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of a wide range of theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, and represent a natural and generic possibility for physics beyond the SM (BSM). In most cases the LLP lifetime can be treated as a free parameter from the μm scale up to the Big Bang Nucleosynthesis limit of ∼10^7m. Neutral LLPs with lifetimes above ∼ 100m are particularly difficult to probe, as the sensitivity of the LHC main detectors is limited by challenging backgrounds, triggers, and small acceptances. MATHUSLA is a proposal for a minimally instrumented, large-volume surface detector near ATLAS or CMS. It would search for neutral LLPs produced in HL-LHC collisions by reconstructing displaced vertices (DVs) in a low-background environment, extending the sensitivity of the main detectors by orders of magnitude in the long-lifetime regime. In this white paper we study the LLP physics opportunities afforded by a MATHUSLA-like detector at the HL-LHC. We develop a model-independent approach to describe the sensitivity of MATHUSLA to BSM LLP signals, and compare it to DV and missing energy searches at ATLAS or CMS. We then explore the BSM motivations for LLPs in considerable detail, presenting a large number of new sensitivity studies. While our discussion is especially oriented towards the long-lifetime regime at MATHUSLA, this survey underlines the importance of a varied LLP search program at the LHC in general. By synthesizing these results into a general discussion of the top-down and bottom-up motivations for LLP searches, it is our aim to demonstrate the exceptional strength and breadth of the physics case for the construction of the MATHUSLA detector.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
https://arxiv.org/abs/1806.07396arXivDiscussion Paper
Additional Information:The editors would like to thank David Morrissey for valuable feedback on a draft version of this manuscript. The work of D. Curtin was supported in part by the National Science Foundation under grant PHY-1620074, and by the Maryland Center for Fundamental Physics. The work of M. Drewes was supported by the Collaborative Research Center SFB1258 of the Deutsche Forschungsgemeinschaft and by the DFG cluster of excellence "Origin and Structure of the Universe" (universe-cluster.de). The work of P. Meade was supported in part by the National Science Foundation under grant NSF-PHY-1620628 R. N. Mohapatra, R. Sundrum and Y. Tsai acknowledge the support of NSF grant No.PHY1620074. The work of J. Shelton was supported in part by DOE grant DE-SC0017840. The work of B. Batell is supported in part by the US Department of Energy under grant DE-SC0015634. The work of N. Blinov is supported by the U.S. Department of Energy under Contract No.DE-AC02-76SF00515 The work of A. Fernández Téllez, K. S. Caballero-Mora, M. Rodriguez Cahuantzi and J. C. Arteaga Velazquez is supported in part by CONACyT-México, Grants CB 243290 The work of Jae Hyeok Chang is supported by DoE Grant DE-SC0017938. The work of T. Cohen was supported in part by the U.S. Department of Energy under grant number DE-SC0018191 and DE-SC0011640. The work of P. Cox is supported by the World Premier International Research Center Initiative (WPI), MEXT, Japan. The work of N. Craig is supported in part by the US Department of Energy under the grant DE-SC0014129. Y. Cui is supported in part by the US Department of Energy Grant DE-SC0008541. The research activities of K.. R. Dienes are supported in part by the U.S. Department of Energy under Grant DE-FG02-13ER41976 (DE-SC0009913) and by the U.S. National Science Foundation through its employee IR/D program. The opinions and conclusions expressed herein are those of the authors, and do not represent any funding agencies. J. Dror is supported in part by the DOE under contract DE-AC02-05CH11231. R. Essig acknowledges support from DoE Grant DE-SC0017938. The work of J. A. Evans was supported in part by NSF CAREER grant PHY-1654502 and by DOE grant DE-SC0015655. The work of A. Fernández Téllez, K. S. Caballero Mora, M. Rodriguez Cahuantzi and J. C. Arteaga Velazquez is supported in part by CONACyT-México, Grants 243290 The work of E. Fuchs was supported in part by the Minerva Foundation. The work of T. Gherghetta was supported in part by the U.S. Department of Energy under Grant DE-SC0011842. The CP3-Origins centre (C. Hagedorn) is partially funded by the Danish National Research Foundation, grant number DNRF90. J. C. Helo is supported by Chile grants Fondecyt No. 1161463, Conicyt PIA/ACT 1406 and Basal FB0821. M. Hirsch is supported by the Spanish MICINN grants FPA2017-85216-P, SEV-2014-0398 and PROMETEOII/2014/084 (Generalitat Valenciana) Y. Hochberg is supported by the Israel Science Foundation (grant No. 1112/17), by the Binational Science Foundation (grant No. 2016155), by the I-CORE Program of the Planning Budgeting Committee (grant No. 1937/12), by the German Israel Foundation (grant No. I-2487-303.7/2017), and by the Azrieli Foundation. A. Hook. is supported by the NSF under grant NSF-PHY-1620074 and the Maryland Center for Fundamental Physics A. Ibarra is partially supported by the DFG cluster of excellence EXC 153 “Origin and Structure of the Universe” and by the Collaborative Research Center SFB1258 S. Ipek. is supported by the University of California President’s Postdoctoral Fellowship Program and partially supported by NSF Grant No. PHY-1620638. S. Joon is supported by Korea NRF-2017R1D1A1B03030820 and NRF-2015R1A4A1042542. Simon Knapen is supported by the DoE under contract 5DE-AC02-05CH11231, and the National Science Foundation (NSF) under grants No.PHY-1316783 and No. PHY-1002399. The work of E. Kuflik is supported by the I-CORE Program of the Planning Budgeting Committee of the Israel Science Foundation (grant No. 1937/12), by the Binational Science Foundation (grant No. 2016153), and the Israel Science Foundation (grant No. 1111/17). This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. H. J. Lubatti and C. Alpigiani are supported in part by National Science Foundation grant PHY-1509257. The research of D. McKeen is supported in part by the National Research Council of Canada. The work of S. Moretti is supported in part through the NExT Institute, the STFC CG ST/L000296/1 and the H2020-MSCA-RISE-2014 grant n. 645722 (NonMinimalHiggs). The work of N. Nagata was supported in part by the Grant-in-Aid for Scientific Research No. 17K14270 The work of J. M. No was partially supported by the European Research Council under the European Unions Horizon 2020 program (ERC Grant Agreement no.648680 DARKHORIZONS), and by the Programa Atraccion de Talento de la Comunidad de Madrid under grant n. 2017-T1/TIC-5202. The work of G. Perez is supported by grants from the BSF, ERC, ISF, Minerva, and the Weizmann-UK Making Connections Program. Research at Perimeter Institute is supported by the Government of Canada through the Department of Innovation, Science and Economic Development and by the Province of Ontario through the Ministry of Research and Innovation. The work of M. Reece was supported in part by the DOE Grant de-sc0013607. The work of D. J. Robinson was supported in part by NSF grant PHY-1720252. The work of A. Fernández Téllez, K. S. Caballero Mora, M. Rodriguez-Cahuantzi and J. C. Arteaga Velazquez is supported in part by CONACyT-México, Grants 243290. M. Rodíguez Cahuantzi also thankfully acknowledge the computer resources, technical expertise and support provided by the Laboratorio Nacional de Supercómputo del Sureste de México and VIEP-BUAP. Daniel Stolarski is supported in part by the Natural Sciences and Engineering Research Council of Canada (NSERC). The work was supported by the Instituto de Investigaciones Físicas (IIF) and Universidad Mayor de San Andrés (UMSA) in collaboration with Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, México. The research activities of B. Thomas are supported in part by NSF grant PHY-1720430. B. Tweedie was supported by DoE grant No. DE-FG02-95ER40896 and by PITT PACC. This research is supported by the Cluster of Excellence Precision Physics, Fundamental Interactions and Structure of Matter (PRISMA-EXC1098). The work of B. Zaldivar was supported in part by the "Investissements d’ avenir" program of the French ANR, Labex "ENIGMASS", and by the Programa Atraccion de Talento de la Comunidad de Madrid under grant n. 2017-T2/TIC-5455. The work of Yongchao Zhang was partially supported by the IISN and Belgian Science Policy (IAP VII/37).
Funders:
Funding AgencyGrant Number
NSFPHY-1620074
Maryland Center for Fundamental PhysicsUNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)SFB1258
NSFPHY-1620628
Department of Energy (DOE)DE-SC0017840
Department of Energy (DOE)DE-SC0015634
Department of Energy (DOE)DE-AC02-76SF00515
Consejo Nacional de Ciencia y Tecnología (CONACYT)CB 243290
Department of Energy (DOE)DE-SC0017938
Department of Energy (DOE)DE-SC0018191
Department of Energy (DOE)DE-SC0011640
Ministry of Education, Culture, Sports, Science and Technology (MEXT)UNSPECIFIED
Department of Energy (DOE)DE-SC0014129
Department of Energy (DOE)DE-SC0008541
Department of Energy (DOE)DE-FG02-13ER41976
Department of Energy (DOE)DE-SC0009913
Department of Energy (DOE)DE-AC02-05CH11231
Department of Energy (DOE)DE-SC0017938
NSFPHY-1654502
Department of Energy (DOE)DE-SC0015655
Consejo Nacional de Ciencia y Tecnología (CONACYT)243290
Minerva FoundationUNSPECIFIED
Department of Energy (DOE)DE-SC0011842
Danish National Research FoundationDNRF90
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1161463
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)ACT 1406
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)FB0821
Ministerio de Ciencia e Innovación (MCINN)FPA2017-85216-P
Severo OchoaSEV-2014-0398
Generalitat ValencianaPROMETEOII/2014/084
Israel Science Foundation1112/17
Binational Science Foundation (USA-Israel)2016155
I-CORE Program of the Planning and Budgeting Committee1937/12
German-Israeli Foundation for Research and DevelopmentI-2487-303.7/2017
Azrieli FoundationUNSPECIFIED
NSFPHY-1620074
Deutsche Forschungsgemeinschaft (DFG)EXC 153
Deutsche Forschungsgemeinschaft (DFG)SFB1258
University of CaliforniaUNSPECIFIED
NSFPHY-1620638
National Research Foundation of Korea2017R1D1A1B03030820
National Research Foundation of Korea2015R1A4A1042542
Department of Energy (DOE)5DE-AC02-05CH11231
NSFPHY-1316783
NSFPHY-1002399
Israel Science Foundation1937/12
Binational Science Foundation (USA-Israel)2016153
Israel Science Foundation1111/17
Department of Energy (DOE)DE-AC02-07CH11359
NSFPHY-1509257
National Research Council of CanadaUNSPECIFIED
NExT InstituteUNSPECIFIED
Science and Technology Facilities Council (STFC)CG ST/L000296/1
European Research Council (ERC)645722
Japan Society for the Promotion of Science (JSPS)17K14270
European Research Council (ERC)648680
Programa Atraccion de Talento de la Comunidad de Madrid2017-T1/TIC-5202
MINERVA (Israel)UNSPECIFIED
Weizmann-UKUNSPECIFIED
Department of Innovation, Science and Economic Development (Canada)UNSPECIFIED
Ontario Ministry of Research and InnovationUNSPECIFIED
Department of Energy (DOE)DE-SC0013607
NSFPHY-1720252
Consejo Nacional de Ciencia y Tecnología (CONACYT)243290
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Instituto de Investigaciones FísicasUNSPECIFIED
Universidad Mayor de San AndrésUNSPECIFIED
Benemérita Universidad Autónoma de Puebla (BUAP)UNSPECIFIED
NSFPHY-1720430
Department of Energy (DOE)DE-FG02-95ER40896
University of PittsburghUNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)PRISMA-EXC1098
Agence Nationale pour la Recherche (ANR)UNSPECIFIED
Programa Atraccion de Talento de la Comunidad de Madrid2017-T2/TIC-5455
IISNUNSPECIFIED
Belgian Federal Science Policy Office (BELSPO)IAP VII/37
Record Number:CaltechAUTHORS:20190621-073204565
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190621-073204565
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96615
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Jun 2019 17:48
Last Modified:21 Jun 2019 17:48

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