Results 31 to 40 of about 1,573,388 (253)
Particle-flow reconstruction and global event description with the CMS detector [PDF]
, 2017 The CMS apparatus was identified, a few years before the start of the LHC operation at CERN, to feature properties well suited to particle-flow (PF) reconstruction: a highly-segmented tracker, a fine-grained electromagnetic calorimeter, a hermetic hadron
Cms Collaboration
semanticscholar +2 more sources
Event Generation and Density Estimation with Surjective Normalizing Flows [PDF]
SciPost Physics, 2022 Normalizing flows are a class of generative models that enable exact likelihood evaluation. While these models have already found various applications in particle physics, normalizing flows are not flexible enough to model many of the peripheral features
R. Verheyen
semanticscholar +1 more source
Journal of High Energy Physics, 2023 Missing kinematic information of known invisible particles, such as neutrinos, limit several high-energy physics analysis. The undetected particle carries away momentum and energy information, preventing the total reconstruction of such an event.
Thomas M. G. Kraetzschmar +6 more
doaj +1 more source
Event shapes and jets in $e^{+}e^{-}$ and pp collisions [PDF]
, 2021 In high energy particle collisions the shape of the event, i.e. the relative distribution of particles in momentum space, is often used to try to select events with certain topologies. It is claimed that an event shape observable like transverse sphericity is able to discriminate between jet-like events and events that are dominated by soft production ...
arxiv +1 more source
Event Shape Selection Method in Search of the Chiral Magnetic Effect in Heavy-ion Collisions [PDF]
Physics Letters B, Volume 848, January 2024, 138367, 2023 The search for the chiral magnetic effect (CME) in heavy-ion collisions has been impeded by the significant background arising from the anisotropic particle emission pattern, particularly elliptic flow. To alleviate this background, the event shape selection (ESS) technique categorizes collision events according to their shapes and projects the CME ...
arxiv +1 more source
Particle physics origin of the 5 MeV bump in the reactor antineutrino spectrum? [PDF]
Physical Review D, 2018 One of the most puzzling questions in neutrino physics is the origin of the excess at 5 MeV in the reactor antineutrino spectrum. In this paper, we explore the excess via the reaction $^{13}$C$(\overline{\nu}, \overline{\nu}^\prime n)^{12}$C$^*$ in ...
J. Berryman, V. Brdar, P. Huber
semanticscholar +1 more source
Machine Learning for Particle Flow Reconstruction at CMS [PDF]
Journal of Physics: Conference Series, 2022 We provide details on the implementation of a machine-learning based particle flow algorithm for CMS. The standard particle flow algorithm reconstructs stable particles based on calorimeter clusters and tracks to provide a global event reconstruction ...
J. Pata +7 more
semanticscholar +1 more source
Tuning pythia for forward physics experiments [PDF]
Physical Review D, 2023 Event generators like Pythia play an important role in physics studies at the Large Hadron Collider (LHC). While they make accurate predictions in the central region, i.e. at pseudorapidities $\eta7$, has been observed.
M. Fieg +3 more
semanticscholar +1 more source
SciPost Physics, 2021 A critical question concerning generative networks applied to event generation in particle physics is if the generated events add statistical precision beyond the training sample.
Anja Butter, Sascha Diefenbacher, Gregor Kasieczka, Benjamin Nachman, Tilman Plehn
doaj +1 more source
International Particle Physics Masterclasses with LHC data
EPJ Web of Conferences, 2014 The International Particle Physics Masterclasses is an educational activity developed by the International Particle Physics Outreach Group with the aim to bring the excitement of cutting-edge particle-physics research into the classroom.
Foka Panagiota
doaj +1 more source