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Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider [PDF]

Journal of Physics G: Nuclear and Particle Physics, 2019
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Hadron Collider (LHC) at CERN, these long-lived particles (LLPs) can decay ...
J. Alimena, James Beacham, M. Borsato, Yangyang Cheng, X. C. Vidal, G. Cottin, A. Roeck, N. Desai, D. Curtin, J. Evans, S. Knapen, S. Kraml, A. Lessa, Zhen Liu, S. Mehlhase, M. Ramsey-Musolf, H. Russell, J. Shelton, B. Shuve, M. Verducci, J. Zurita, T. Adams, M. Adersberger, C. Alpigiani, A. Apresyan, R. Bainbridge, V. Batozskaya, H. Beauchesne, L. Benato, S. Berlendis, E. Bhal, F. Blekman, Christina Borovilou, J. Boyd, B. Brau, L. Bryngemark, O. Buchmueller, M. Buschmann, W. Buttinger, M. Campanelli, C. Cesarotti, Chunhui Chen, Hsin-Chia Cheng, S. Cheong, M. Citron, A. Coccaro, V. Coco, É. Conte, F. Cormier, L. Corpe, N. Craig, Yanou Cui, E. Dall’Occo, C. Dallapiccola, M. R. Darwish, A. Davoli, A. Cosa, A. Simone, L. D. Rose, F. Deppisch, B. Dey, M. Diamond, K. Dienes, S. Dildick, Babette Dobrich, M. Drewes, M. Eich, M. Elsawy, A. E. D. Valle, G. Facini, M. Farina, Jonathan L. Feng, O. Fischer, H. Flaecher, P. Foldenauer, M. Freytsis, B. Fuks, I. Galon, Y. Gershtein, S. Giagu, A. Giammanco, V. Gligorov, T. Golling, S. Grancagnolo, G. Gustavino, A. Haas, K. Hahn, Jan Hajer, A. Hammad, Lukas Heinrich, J. Heisig, J. Helo, G. Hesketh, C. Hill, M. Hirsch, M. Hohlmann, W. Hulsbergen, J. Huth, P. Ilten, T. Jacques, B. Jayatilaka, G. Jeng, K. Johns, T. Kaji, G. Kasieczka, Y. Kats, M. Kazana, H. Keller, M. Khlopov, F. Kling, T. Kolberg, I. Kostiuk, E. Kuwertz, A. Kvam, G. Landsberg, G. Lanfranchi, I. Lara, A. Ledovskoy, Dylan Linthorne, Jia Liu, I. Longarini, S. Lowette, H. Lubatti, M. Lutz, Jingyu Luo, Judita Mamuvzi'c, M. Marinangeli, Alberto Mariotti, D. Marlow, M. McCullough, K. Mcdermott, P. Mermod, D. Milstead, V. Mitsou, J. Berlingen, F. Moortgat, A. Morandini, A. Morris, D. Morse, S. Mrenna, B. Nachman, Miha Nemevvsek, F. Nesti, Christian Ohm, S. Pascoli, K. Pedro, C. Peña, K. J. P. Rodriguez, J. Piedra, J. Pinfold, A. Policicchio, Goran Popara, J. Prisciandaro, M. Proffitt, G. Rauco, F. Redi, M. Reece, A. Hall, H. Sfar, S. Renner, A. Roepe, M. Ronzani, E. Salvioni, A. Santra, R. Sawada, J. Scholtz, P. Schuster, P. Schwaller, Cristiano Sebastiani, S. Sekmen, M. Selvaggi, W. Si, L. Soffi, D. Stolarski, D. Stuart, J. Stupak, K. Sung, W. Taylor, S. Templ, B. Thomas, Emma Torr'o-Pastor, D. Trocino, S. Trojanowski, M. Trovato, Yuhsin Tsai, C. Tully, Tam'as 'Almos V'ami, J. Vasquez, C. Sierra, K. Vellidis, B. Vermassen, M. Vit, D. Walker, Xiaoping Wang, G. Watts, S. Xie, M. Yexley, C. Young, Jiang-Hao Yu, P. Zalewski, Yongchao Zhang The Ohio State University, D. University, Ruprecht-Karls-Universitat Heidelberg, Cornell University, U. S. D. Compostela, N. University, Cern, T. I. O. F. Physics, U. Toronto, U. Cincinnati, Institute for Advanced Study, Universit'e Grenoble-Alpes, CNRSIN2p3, Universidade Federal do Abc, U. Maryland, Ludwig-Maximilians-Universitat Munchen, U. Massachusetts, Amherst, M. University, U. I. Urbana-Champaign, Harvey Mudd College, U. California, Riverside, U. Tre, Infn, Karlsruhe Institute of Technology, Florida State University, U. Washington, I. College, N. C. F. N. Research, Warsaw, Poland, Ben-Gurion University, U. Hamburg, U. Arizona, U. Bristol, V. U. Brussel, National, Kapodistrian University of Athens, L. University, U. Michigan, U. London, Harvard University, I. S. University, Davis, S. N. Laboratory, S. University, Santa Barbara, I. Genova, Universit'e de StrasbourgCNRS-IN2P3, The University of British Columbia, Nikhef National Institute for Subatomic Physics, A. University, Sissa, U. Zurich, I. Trieste, University of Florence, U. Southampton, Central China Normal University, Texas A M University, Universit'e catholique de Louvain, The British University in Egypt, Beni Suef University, Austrian Academy of Sciences, Stony Brook University, Irvine, U. Heidelberg, T. University, U. Oregon, Sorbonne Universit'e et Cnrs, I. France, Rutgers, The State University of New Jersey, Rutgers University, S. Roma, Infn Roma, Sorbonne Universit'e, U. Geneve, Humboldt-Universitat, The University of Oklahoma, N. University, N. University, U. Basel, Universidad de La Serena, U. Valencia, Florida Institute of Technology, U. Birmingham, F. N. Laboratory, W. University, Rwth Aachen University, National Research Nuclear University, Mephi, A. laboratory, Brown University, Laboratori Nazionali di Frascati, Instituto de F'isica Te'orica, U. Virginia, Carleton University, U. Chicago, Univ. Roma, La Sapienza, P. University, 'Ecole polytechnique f'ed'erale de Lausanne, Stockholms Universitet, U. Ghent, Northeastern University, L. B. N. Laboratory, J. S. Institute, U. dell'Aquila, K. R. I. O. Technology, Stockholm University, D. University, C. I. O. Technology., Ifca, U. Alberta, Rudjer Bovskovi'c Institute, Johannes Gutenberg University, T. U. Munich, T. U. O. Tokyo, Kyungpook National University, York University, Lafayette College, U. Sheffield, A. N. Laboratory, Wigner Research Centre for Physics, Universidad T'ecnica Federico Santa Mar'ia, Dartmouth College, L. University, Chinese Academy of Sciences, W. University, S. Louis, S. University, Institute for Nuclear Research of the National Academy of Sciences, Kyiv, Ukraine   +334 more
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Black hole production of monopoles in the early universe

Journal of High Energy Physics, 2021
In the early universe, evaporating black holes heat up the surrounding plasma and create a temperature profile around the black hole that can be more important than the black hole itself.
Saurav Das, Anson Hook
doaj   +1 more source

Dark moments for the Standard Model?

Journal of High Energy Physics, 2021
If dark matter (DM) interacts with the Standard Model (SM) via the kinetic mixing (KM) portal, it necessitates the existence of portal matter (PM) particles which carry both dark and SM quantum numbers that will appear in vacuum polarization-like loop ...
Thomas G. Rizzo
doaj   +1 more source

Analytic study of dark photon and gravitational wave production from axion

Journal of High Energy Physics, 2021
Axion-like fields heavier than about 10 −27 eV are expected to oscillate in the radiation dominated epoch when the Hubble parameter drops below their mass.
Borna Salehian, Mohammad Ali Gorji, Shinji Mukohyama, Hassan Firouzjahi   +3 more
doaj   +1 more source

Spillway preheating

Journal of High Energy Physics, 2021
In traditional models only an order one fraction of energy is transferred from the inflaton to radiation through nonperturbative resonance production in preheating immediately after inflation, due to backreaction effects. We propose a particle production
JiJi Fan, Kaloian D. Lozanov, Qianshu Lu
doaj   +1 more source

Thermal QCD Axions across Thresholds

Journal of High Energy Physics, 2021
Thermal axion production in the early universe goes through several mass thresholds, and the resulting rate may change dramatically across them. Focusing on the KSVZ and DFSZ frameworks for the invisible QCD axion, we perform a systematic analysis of ...
Francesco D’Eramo, Fazlollah Hajkarim, Seokhoon Yun   +2 more
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Unification of the standard model and dark matter sectors in [SU(5) × U(1)]4

Journal of High Energy Physics, 2019
A simple model of dark matter contains a light Dirac field charged under a hidden U(1) gauge symmetry. When a chiral matter content in a strong dynamics satisfies the t’Hooft anomaly matching condition, a massless baryon is a natural candidate of the ...
Ayuki Kamada, Masaki Yamada, Tsutomu T. Yanagida   +2 more
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Dark matter from a complex scalar singlet: the role of dark CP and other discrete symmetries

Journal of High Energy Physics, 2021
We study the case of a pseudo-scalar dark matter candidate which emerges from a complex scalar singlet, charged under a global U(1) symmetry, which is broken both explicitly and spontaneously.
Leonardo Coito, Carlos Faubel, Juan Herrero-García, Arcadi Santamaria   +3 more
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Non-minimal (self-)running inflation: metric vs. Palatini formulation

Journal of High Energy Physics, 2021
We consider a model of quartic inflation where the inflaton is coupled non-minimally to gravity and the self-induced radiative corrections to its effective potential are dominant.
Antonio Racioppi
doaj   +1 more source

Reheating neutron stars with the annihilation of self-interacting dark matter

Journal of High Energy Physics, 2018
Compact stellar objects such as neutron stars (NS) are ideal places for capturing dark matter (DM) particles. We study the effect of self-interacting DM (SIDM) captured by nearby NS that can reheat it to an appreciated surface temperature through ...
Chian-Shu Chen, Yen-Hsun Lin
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