Results 21 to 30 of about 7,647,352 (298)

Search for a feebly interacting particle X in the decay K + → π + X

open access: yesJournal of High Energy Physics, 2021
A search for the K + → π + X decay, where X is a long-lived feebly interacting particle, is performed through an interpretation of the K + → π + ν ν ¯ $$ {\pi}^{+}\nu \overline{\nu} $$ analysis of data collected in 2017 by the NA62 experiment at CERN ...
The NA62 collaboration   +200 more
doaj   +1 more source

The PADME beam line Monte Carlo simulation

open access: yesJournal of High Energy Physics, 2022
The PADME experiment at the DAΦNE Beam-Test Facility (BTF) of the INFN Laboratory of Frascati is designed to search for invisible decays of dark sector particles produced in electron-positron annihilation events with a positron beam and a thin fixed ...
The PADME collaboration   +41 more
doaj   +1 more source

Measurement of the form factors of charged kaon semileptonic decays

open access: yesJournal of High Energy Physics, 2018
A measurement of the form factors of charged kaon semileptonic decays is presented, based on 4.4 × 106 K ± → π 0 e ± ν e (K e3 ± ) and 2.3 × 106 K ± → π 0 μ±ν μ (K μ3 ± ) decays collected in 2004 by the NA48/2 experiment.
The NA48/2 collaboration   +123 more
doaj   +1 more source

Production of π + and K+ mesons in argon-nucleus interactions at 3.2 A GeV

open access: yesJournal of High Energy Physics, 2023
First physics results of the BM@N experiment at the Nuclotron/NICA complex are presented on π + and K + meson production in interactions of an argon beam with fixed targets of C, Al, Cu, Sn and Pb at 3.2 A GeV. Transverse momentum distributions, rapidity
The BM@N collaboration   +172 more
doaj   +1 more source

Sensitivity of the SHiP experiment to Heavy Neutral Leptons

open access: yesJournal of High Energy Physics, 2019
Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino masses, generate the observed matter-antimatter asymmetry in the Universe ...
The SHiP collaboration   +334 more
doaj   +1 more source

Photoproduction of Hadron Pairs at Fixed-Target Experiments

open access: yes15th International Workshop on Deep-Inelastic Scattering and Related Subjects DIS 2007, 2007
We consider the photoproduction of two hadrons in polarized lepton-nucleon collisions in the framework of perturbative QCD at the next-to-leading order accuracy. After illustrating how to obtain the experimentally relevant observables, a phenomenological study of the photoproduction of hadron pairs at high transverse momenta is presented.
Hendlmeier, Christof   +2 more
openaire   +2 more sources

Production and discovery of true muonium in fixed-target experiments [PDF]

open access: yesPhysical Review D, 2012
Upcoming fixed-target experiments designed to search for new sub-GeV forces will also have sensitivity to the never before observed True Muonium atom, a bound state of a muon and anti-muon. We describe the production and decay characteristics of True Muonium relevant to these experiments.
Banburski, Andrzej, Schuster, Philip
openaire   +2 more sources

Exploring leptophilic dark matter with NA64-μ

open access: yesJournal of High Energy Physics, 2018
We investigate the prospects for detecting light leptophilic dark sectors with a missing-momentum experiment at NA64 running in muon mode. In particular, we consider models in which dark matter connects to the visible sector through a lepton- or muon ...
Chien-Yi Chen   +2 more
doaj   +1 more source

Photon-rejection power of the Light Dark Matter eXperiment in an 8 GeV beam

open access: yesJournal of High Energy Physics, 2023
The Light Dark Matter eXperiment (LDMX) is an electron-beam fixed-target experiment designed to achieve comprehensive model independent sensitivity to dark matter particles in the sub-GeV mass region.
The LDMX collaboration   +47 more
doaj   +1 more source

Future polarised DIS fixed target experiments [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1999
5 pages, 2 figures, LaTeX, Contribution to the proceedings of the DIS99, DESY-Zeuthen, Germany, April ...
openaire   +2 more sources

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