Zeeshan Ahmed, Yuri Alexeev, Giorgio Apollinari, Asimina Arvanitaki, David Awschalom, Karl K. Berggren, Karl Van Bibber, Przemyslaw Bienias, Geoffrey Bodwin, Malcolm Boshier, Daniel Bowring, Davide Braga, Karen Byrum, Gustavo Cancelo, Gianpaolo Carosi, Tom Cecil, Clarence Chang, Mattia Checchin, Sergei Chekanov, Aaron Chou, Aashish Clerk, Ian Cloet, Michael Crisler, Marcel Demarteau, Ranjan Dharmapalan, Matthew Dietrich, Junjia Ding, Zelimir Djurcic, John Doyle, James Fast, Michael Fazio, Peter Fierlinger, Hal Finkel, Patrick Fox, Gerald Gabrielse, Andrei Gaponenko, Maurice Garcia-Sciveres, Andrew Geraci, Jeffrey Guest, Supratik Guha, Salman Habib, Ron Harnik, Amr Helmy, Yuekun Heng, Jason Henning, Joseph Heremans, Phay Ho, Jason Hogan, Johannes Hubmayr, David Hume, Kent Irwin, Cynthia Jenks, Nick Karonis, Raj Kettimuthu, Derek Kimball, Jonathan King, Eve Kovacs, Richard Kriske, Donna Kubik, Akito Kusaka, Benjamin Lawrie, Konrad Lehnert, Paul Lett, Jonathan Lewis, Pavel Lougovski, Larry Lurio, Xuedan Ma, Edward May, Petra Merkel, Jessica Metcalfe, Antonino Miceli, Misun Min, Sandeep Miryala, John Mitchell, Vesna Mitrovic, Holger Mueller, Sae Woo Nam, Hogan Nguyen, Howard Nicholson, Andrei Nomerotski, Michael Norman, Kevin O'Brien, Roger O'Brient, Umeshkumar Patel, Bjoern Penning, Sergey Perverzev, Nicholas Peters, Raphael Pooser, Chrystian Posada, James Proudfoot, Tenzin Rabga, Tijana Rajh, Sergio Rescia, Alexander Romanenko, Roger Rusack, Monika Schleier-Smith, Keith Schwab, Julie Segal, Ian Shipsey, Erik Shirokoff, Andrew Sonnenschein, Valerie Taylor, Robert Tschirhart, Chris Tully, David Underwood, Vladan Vuletic, Robert Wagner, Gensheng Wang, Harry Weerts, Nathan Woollett, Junqi Xie, Volodymyr Yefremenko, John Zasadzinski, Jinlong Zhang, Xufeng Zhang, Vishnu Zutshi
Report of the first workshop to identify approaches and techniques in the domain of quantum sensing that can be utilized by future High Energy Physics applications to further the scientific goals of High Energy Physics.
Juliette Alimena, James Beacham, Freya Blekman, Adrián Casais Vidal, Xabier Cid Vidal, Matthew Citron, David Curtin, Albert De Roeck, Nishita Desai, Karri Folan Di Petrillo, Yuri Gershtein, Louis Henry, Tova Holmes, Brij Jashal, Philip James Ilten, Sascha Mehlhase, Javier Montejo Berlingen, Arantza Oyanguren, Giovanni Punzi, Murilo Santana Rangel, Federico Leo Redi, Lorenzo Sestini, Emma Torro, Carlos Vázquez Sierra, Maarten van Veghel, Mike Williams, José Zurita, Darin Acosta, Christina Agapopoulou, Sara Alderweireldt, Artur Apresyan, Aurélien Bailly-Reyre, Carla Marín Benito, Alessandro Bertolin, Lukas Calefice, Daniel Hugo Cámpora Pérez, Andrea Coccaro, Sven Dildick, Caterina Doglioni, Sinead Farrington, Jack Gargan, Stefano Giagu, Jason Gilmore, Vladimir Gligorov, Giulia Gonella, Guillermo Hamity, Arthur Hennequin, Tao Huang, Sergo Jindariani, Daniel Johnson, Georgia Karapostoli, Aaron Kilgallon, Gillian Kopp, Martin Kwok, Owen Long, Jia Fu Low, Steven Lowette, Jingyu Luo, Nik Menendez, Titus Mombächer, Paul Padley, Victoria Parrish, Cristián Peña, Lorenzo Pica, Vladimir Rekovic, Suzanne Rosenzweig, Alexei Safonov, Jakob Salfeld-Nebgen, María Spiropúlu, Giulia Tuci, Chris Tully, Andrii Usachov, David Vannerom, Akanksha Vishwakarma, Christina Wang, Si Xie, Efe Yiğitbaşı, Estifa'a Zaid
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.
Hind Al Ali, Nima Arkani-Hamed, Ian Banta, Sean Benevedes, Dario Buttazzo, Tianji Cai, Junyi Cheng, Timothy Cohen, Nathaniel Craig, Majid Ekhterachian, JiJi Fan, Matthew Forslund, Isabel Garcia Garcia, Samuel Homiller, Seth Koren, Giacomo Koszegi, Zhen Liu, Qianshu Lu, Kun-Feng Lyu, Alberto Mariotti, Amara McCune, Patrick Meade, Isobel Ojalvo, Umut Oktem, Diego Redigolo, Matthew Reece, Filippo Sala, Raman Sundrum, Dave Sutherland, Andrea Tesi, Timothy Trott, Chris Tully, Lian-Tao Wang, Menghang Wang
We lay out a comprehensive physics case for a future high-energy muon collider, exploring a range of collision energies (from 1 to 100 TeV) and luminosities. We highlight the advantages of such a collider over proposed alternatives. We show how one can leverage both the point-like nature of the muons themselves as well as the cloud of electroweak radiation that surrounds the beam to blur the dichotomy between energy and precision in the search for new physics. The physics case is buttressed by a range of studies with applications to electroweak symmetry breaking, dark matter, and the naturalness of the weak scale. Furthermore, we make sharp connections with complementary experiments that are probing new physics effects using electric dipole moments, flavor violation, and gravitational waves. An extensive appendix provides cross section predictions as a function of the center-of-mass energy for many canonical simplified models.