Results 21 to 30 of about 1,332,482 (305)

Quantum anomaly detection for collider physics

Journal of High Energy Physics, 2023
We explore the use of Quantum Machine Learning (QML) for anomaly detection at the Large Hadron Collider (LHC). In particular, we explore a semi-supervised approach in the four-lepton final state where simulations are reliable enough for a direct ...
Sulaiman Alvi, Christian W. Bauer, Benjamin Nachman   +2 more
doaj   +1 more source

Following the muon track of hierarchical sectors at LHCb

Journal of High Energy Physics, 2022
This paper reports a study of the experimental signatures of hierarchical sectors beyond the Standard Model characterized by a flavour-violating heavy vector and a set of light pseudo-Goldstone bosons a 1,2, spanning a large range of lifetimes.
Xabier Cid Vidal, Titus Mombächer, Maria Ramos, Emilio Xosé Rodríguez Fernández   +3 more
doaj   +1 more source

Probing an MeV-scale scalar boson in association with a TeV-Scale top-quark partner at the LHC

Journal of High Energy Physics, 2023
Searches for new low-mass matter and mediator particles have actively been pursued at fixed target experiments and at e + e − colliders. It is challenging at the CERN LHC, but they have been searched for in Higgs boson decays and in B meson decays by the
Bhaskar Dutta, Sumit Ghosh, Alfredo Gurrola, Dale Julson, Teruki Kamon, Jason Kumar   +5 more
doaj   +1 more source

Anomalous Diffusion in Velocity Space [PDF]

, 2009
The problem of anomalous diffusion in the momentum space is considered on the basis of the appropriate probability transition function (PTF). New general equation for description of the diffusion of heavy particles in the gas of the light particles is ...
Brockmann, Ebeling, Gopikrishnan, Klafter, Landau, Metzler, Monin, Ott, Perri, Perri, Rinn, S.A. Trigger, Scher, Sokolov, Trigger, Trigger, Trigger, West, Zimbardo   +18 more
core   +1 more source

Matched detectors as definers of force

, 2004
Although quantum states nicely express interference effects, outcomes of experimental trials show no states directly; they indicate properties of probability distributions for outcomes.
Aharonov, Barton, Chaney, Dirac, F. Hadi Madjid, Feller, Feynman, Gray, John M. Myers, Myers, Myers, Rudin, Rudin, von Neumann   +13 more
core   +3 more sources

Light by Light Scattering at High Energy: a Tool to Reveal New Particles

, 1999
We point out a few remarkable properties of the $\gamma\gamma\to\gamma\gamma$ process at high energy. They should allow to search for effects of new particles and interactions.
Chanowitz, F.M. Renard, G.J. Gounaris, Glover, Jikia, P.I. Porfyriadis, Spira   +6 more
core   +1 more source

Probing R-parity violation in B-meson decays to a baryon and a light neutralino

Journal of High Energy Physics, 2023
We propose a search for B meson decays to a baryon plus missing energy at the Belle II experiment to probe supersymmetry with a GeV-scale lightest neutralino χ ~ 1 0 $$ {\overset{\sim }{\chi}}_1^0 $$ and R-parity violation (RPV).
Claudio O. Dib, Juan Carlos Helo, Valery E. Lyubovitskij, Nicolás A. Neill, Abner Soffer, Zeren Simon Wang   +5 more
doaj   +1 more source

Experimental constraints on a dark matter origin for the DAMA annual modulation effect [PDF]

, 2008
A claim for evidence of dark matter interactions in the DAMA experiment has been recently reinforced. We employ a new type of germanium detector to conclusively rule out a standard isothermal galactic halo of Weakly Interacting Massive Particles (WIMPs ...
Aalseth, C. E., Barbeau, P. S., Cerdeno, D. G., Colaresi, J., Collar, J. I., de Lurgio, P., Drake, G., Fast, J. E., Greenberg, C. H., Hossbach, T. W., Kephart, J. D., Marino, M. G., Miley, H. S., Orrell, J. L., Reyna, D., Robertson, R. G. H., Talaga, R., Tench, O., Van Wechel, T. D., Wilkerson, J. F., Yocum, K. M.   +20 more
core   +2 more sources

Light spin-1/2 or spin-0 Dark Matter particles

, 2004
We recall and precise how light spin-0 particles could be acceptable Dark Matter candidates, and extend this analysis to spin-1/2 particles. We evaluate the (rather large) annihilation cross sections required, and show how they may be induced by a new ...
B. Lee, C. Boehm, C. Boehm, C. Boehm, C. Boehm, C. Boehm, G. Farrar, G. Jungman, G.W. Benett, H. Goldberg, J. Ellis, L. Krauss, M. Davier, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Fayet, P. Jean, R.C. Allen, R.C. Allen   +26 more
core   +2 more sources

Searches for sterile neutrinos (and other light particles)

, 2004
Future neutrino and cosmological experiments will perform powerful searches for new light particles. After a general introduction we discuss how a new light fermion (`sterile neutrino') could manifest.Comment: 8 pages, 5 figures.
Abazajian, Alessandro Strumia, Arkani-Hamed, Barger, Bashinsky, Beacom, Beacom, Cacciapaglia, Chhacko, Cirelli, Crotty, De Gouvea, de Holanda, Hannestad, Hannestad, Ioannisian, Kopeikin, Lewis, Liddle, Maltoni, Okui, Peres, Pierpaoli, Spergel, Strumia, Strumia   +25 more
core   +1 more source