MATHUSLA: An External Long-Lived Particle Detector to Maximize the Discovery Potential of the HL-LHC
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| Format: | Preprint |
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2025
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| author | Aitken, Branden Alpigiani, Cristiano Arteaga-Velázquez, Juan Carlos Baker, Mitchel Balazs, Kincso Barron, Jared Batell, Brian Batz, Austin Benhammou, Yan Bud, Tamara Alice Caballero-Mora, Karen Salomé Chou, John Paul Curtin, David de Roeck, Albert Diamond, Miriam Didenko, Mariia Dienes, Keith R. Dougherty, William Dougherty, Liam Andrew Drewes, Marco Erramilli, Sameer Etzion, Erez Téllez, Arturo Fernández Finlayson, Grace Fischer, Oliver Freeman, Jim Gall, Jonathan Garabaglu, Ali Gomber, Bhawna Greenberg, Stephen Elliott Grewal, Jaipratap Singh Hallman, Zoe Hassan, Bahgat Heng, Yuekun Humphrey, Keegan Humphrey, Trystan Kribs, Graham D. Lau, Alex Liao, Jiahao Liu, Zhen Marsella, Giovanni McCullough, Matthew McKeen, David Meade, Patrick Miller, Caleb Mizrachi, Gilad Morales-Olivares, O. G. Morrissey, David Morsy, Abdulrahman Ahmed Osborn, John Owh, Gabriel Panagiotou, Michalis Proffitt, Mason Ren, Runze Robertson, Steven H. Rodríguez-Cahuantzi, Mario Russell, Heather Sánchez, Victoria Saka, Halil Samra, Mamoksh Schnarr, Rodney Shelton, Jessie Silver, Yiftah Stolarski, Daniel Vasquez, Martin A. Subieta Swain, Sanjay Kumar Thayil, Steffie Ann Thomas, Brooks Torro, Emma Tsai, Yuhsin Winnicky-Lewis, Bennett Zolkin, Igor Zurita, Jose |
| author_facet | Aitken, Branden Alpigiani, Cristiano Arteaga-Velázquez, Juan Carlos Baker, Mitchel Balazs, Kincso Barron, Jared Batell, Brian Batz, Austin Benhammou, Yan Bud, Tamara Alice Caballero-Mora, Karen Salomé Chou, John Paul Curtin, David de Roeck, Albert Diamond, Miriam Didenko, Mariia Dienes, Keith R. Dougherty, William Dougherty, Liam Andrew Drewes, Marco Erramilli, Sameer Etzion, Erez Téllez, Arturo Fernández Finlayson, Grace Fischer, Oliver Freeman, Jim Gall, Jonathan Garabaglu, Ali Gomber, Bhawna Greenberg, Stephen Elliott Grewal, Jaipratap Singh Hallman, Zoe Hassan, Bahgat Heng, Yuekun Humphrey, Keegan Humphrey, Trystan Kribs, Graham D. Lau, Alex Liao, Jiahao Liu, Zhen Marsella, Giovanni McCullough, Matthew McKeen, David Meade, Patrick Miller, Caleb Mizrachi, Gilad Morales-Olivares, O. G. Morrissey, David Morsy, Abdulrahman Ahmed Osborn, John Owh, Gabriel Panagiotou, Michalis Proffitt, Mason Ren, Runze Robertson, Steven H. Rodríguez-Cahuantzi, Mario Russell, Heather Sánchez, Victoria Saka, Halil Samra, Mamoksh Schnarr, Rodney Shelton, Jessie Silver, Yiftah Stolarski, Daniel Vasquez, Martin A. Subieta Swain, Sanjay Kumar Thayil, Steffie Ann Thomas, Brooks Torro, Emma Tsai, Yuhsin Winnicky-Lewis, Bennett Zolkin, Igor Zurita, Jose |
| contents | We present the current status of the MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) long-lived particle (LLP) detector at the HL-LHC, covering the design, fabrication and installation at CERN Point 5. MATHUSLA40 is a 40 m-scale detector with an air-filled decay volume that is instrumented with scintillator tracking detectors, to be located near CMS. Its large size, close proximity to the CMS interaction point and about 100 m of rock shielding from LHC backgrounds allows it to detect LLP production rates and lifetimes that are one to two orders of magnitude beyond the ultimate reach of the LHC main detectors. This provides unique sensitivity to many LLP signals that are highly theoretically motivated, due to their connection to the hierarchy problem, the nature of dark matter, and baryogenesis. Data taking is projected to commence with the start of HL-LHC operations. We summarize the new 40m design for the detector that was recently presented in the MATHUSLA Conceptual Design Report, alongside new realistic background and signal simulations that demonstrate high efficiency for the main target LLP signals in a background-free HL-LHC search. We argue that MATHUSLA's uniquely robust expansion of the HL-LHC physics reach is a crucial ingredient in CERN's mission to search for new physics and characterize the Higgs boson with precision. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_01999 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | MATHUSLA: An External Long-Lived Particle Detector to Maximize the Discovery Potential of the HL-LHC Aitken, Branden Alpigiani, Cristiano Arteaga-Velázquez, Juan Carlos Baker, Mitchel Balazs, Kincso Barron, Jared Batell, Brian Batz, Austin Benhammou, Yan Bud, Tamara Alice Caballero-Mora, Karen Salomé Chou, John Paul Curtin, David de Roeck, Albert Diamond, Miriam Didenko, Mariia Dienes, Keith R. Dougherty, William Dougherty, Liam Andrew Drewes, Marco Erramilli, Sameer Etzion, Erez Téllez, Arturo Fernández Finlayson, Grace Fischer, Oliver Freeman, Jim Gall, Jonathan Garabaglu, Ali Gomber, Bhawna Greenberg, Stephen Elliott Grewal, Jaipratap Singh Hallman, Zoe Hassan, Bahgat Heng, Yuekun Humphrey, Keegan Humphrey, Trystan Kribs, Graham D. Lau, Alex Liao, Jiahao Liu, Zhen Marsella, Giovanni McCullough, Matthew McKeen, David Meade, Patrick Miller, Caleb Mizrachi, Gilad Morales-Olivares, O. G. Morrissey, David Morsy, Abdulrahman Ahmed Osborn, John Owh, Gabriel Panagiotou, Michalis Proffitt, Mason Ren, Runze Robertson, Steven H. Rodríguez-Cahuantzi, Mario Russell, Heather Sánchez, Victoria Saka, Halil Samra, Mamoksh Schnarr, Rodney Shelton, Jessie Silver, Yiftah Stolarski, Daniel Vasquez, Martin A. Subieta Swain, Sanjay Kumar Thayil, Steffie Ann Thomas, Brooks Torro, Emma Tsai, Yuhsin Winnicky-Lewis, Bennett Zolkin, Igor Zurita, Jose Instrumentation and Detectors High Energy Physics - Experiment High Energy Physics - Phenomenology We present the current status of the MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) long-lived particle (LLP) detector at the HL-LHC, covering the design, fabrication and installation at CERN Point 5. MATHUSLA40 is a 40 m-scale detector with an air-filled decay volume that is instrumented with scintillator tracking detectors, to be located near CMS. Its large size, close proximity to the CMS interaction point and about 100 m of rock shielding from LHC backgrounds allows it to detect LLP production rates and lifetimes that are one to two orders of magnitude beyond the ultimate reach of the LHC main detectors. This provides unique sensitivity to many LLP signals that are highly theoretically motivated, due to their connection to the hierarchy problem, the nature of dark matter, and baryogenesis. Data taking is projected to commence with the start of HL-LHC operations. We summarize the new 40m design for the detector that was recently presented in the MATHUSLA Conceptual Design Report, alongside new realistic background and signal simulations that demonstrate high efficiency for the main target LLP signals in a background-free HL-LHC search. We argue that MATHUSLA's uniquely robust expansion of the HL-LHC physics reach is a crucial ingredient in CERN's mission to search for new physics and characterize the Higgs boson with precision. |
| title | MATHUSLA: An External Long-Lived Particle Detector to Maximize the Discovery Potential of the HL-LHC |
| topic | Instrumentation and Detectors High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2504.01999 |