Review of opportunities for new long-lived particle triggers in Run 3 of the Large Hadron Collider
Creators: name: Alimena, Juliette
name: Beacham, James
name: Blekman, Freya
name: Vidal, Adrián Casais
name: Vidal, Xabier Cid
name: Citron, Matthew
name: Curtin, David
name: De Roeck, Albert
name: Desai, Nishita
name: Di Petrillo, Karri Folan
name: Gershtein, Yuri
name: Henry, Louis
name: Holmes, Tova
name: Jashal, Brij
name: Ilten, Philip James
name: Mehlhase, Sascha
name: Berlingen, Javier Montejo
name: Oyanguren, Arantza
name: Punzi, Giovanni
name: Rangel, Murilo Santana
name: Redi, Federico Leo
name: Sestini, Lorenzo
name: Torro, Emma
name: Sierra, Carlos Vázquez
name: van Veghel, Maarten
name: Williams, Mike
name: Zurita, José
name: Acosta, Darin
name: Agapopoulou, Christina
name: Alderweireldt, Sara
name: Apresyan, Artur
name: Bailly-Reyre, Aurélien
name: Benito, Carla Marín
name: Bertolin, Alessandro
name: Calefice, Lukas
name: Pérez, Daniel Hugo Cámpora
name: Coccaro, Andrea
name: Dildick, Sven
name: Doglioni, Caterina
name: Farrington, Sinead
name: Gargan, Jack
name: Giagu, Stefano
name: Gilmore, Jason
name: Gligorov, Vladimir
name: Gonella, Giulia
name: Hamity, Guillermo
name: Hennequin, Arthur
name: Huang, Tao
name: Jindariani, Sergo
name: Johnson, Daniel
name: Karapostoli, Georgia
name: Kilgallon, Aaron
name: Kopp, Gillian
name: Kwok, Martin
name: Long, Owen
name: Low, Jia Fu
name: Lowette, Steven
name: Luo, Jingyu
name: Menendez, Nik
name: Mombächer, Titus
name: Padley, Paul
name: Parrish, Victoria
name: Peña, Cristián
name: Pica, Lorenzo
name: Rekovic, Vladimir
name: Rosenzweig, Suzanne
name: Safonov, Alexei
name: Salfeld-Nebgen, Jakob
name: Spiropúlu, María
name: Tuci, Giulia
name: Tully, Chris
name: Usachov, Andrii
name: Vannerom, David
name: Vishwakarma, Akanksha
name: Wang, Christina
name: Xie, Si
name: Yiğitbaşı, Efe
name: Zaid, Estifa'a
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: particle, long-lived
CERN LHC Coll
trigger
new physics

description: Long-lived particles (LLPs) are highly motivated signals of physics Beyond the Standard Model (BSM) with great discovery potential and unique experimental challenges. The LLP search programme made great advances during Run 2 of the Large Hadron Collider (LHC), but many important regions of signal space remain unexplored. Dedicated triggers are crucial to improve the potential of LLP searches, and their development and expansion is necessary for the full exploitation of the new data. The public discussion of triggers has therefore been a relevant theme in the recent LLP literature, in the meetings of the LLP@LHC Community workshop and in the respective experiments. This paper documents the ideas collected during talks and discussions at these Workshops, benefiting as well from the ideas under development by the trigger community within the experimental collaborations. We summarise the theoretical motivations of various LLP scenarios leading to highly elusive signals, reviewing concrete ideas for triggers that could greatly extend the reach of the LHC experiments. We thus expect this document to encourage further thinking for both the phenomenological and experimental communities, as a stepping stone to further develop the LLP@LHC physics programme.