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Search for production of an invisible dark photon in (0) decays
- Source :
- JOURNAL OF HIGH ENERGY PHYSICS, Digital.CSIC. Repositorio Institucional del CSIC, instname, Journal of High Energy Physics, Journal of High Energy Physics, Springer, 2019, 05, pp.182. ⟨10.1007/JHEP05(2019)182⟩, JHEP, JHEP, 2019, 05, pp.182. ⟨10.1007/JHEP05(2019)182⟩, BASE-Bielefeld Academic Search Engine, The NA62 Collaboration Cortina Gil, Eduardo Kleimenova, A. Minucci, E. Husek, Tomas 2019 Search for production of an invisible dark photon in π0 decays The Journal of high energy physics 05 182, RODERIC: Repositorio Institucional de la Universitat de Valéncia, RODERIC. Repositorio Institucional de la Universitat de Valéncia, Journal of High Energy Physics (Print), Vol. 05, no.5, p. 182 (2019), Journal of High Energy Physics, 2019, 05, pp.182. ⟨10.1007/JHEP05(2019)182⟩, Temur Enik, Journal of High Energy Physics, Vol 2019, Iss 5, Pp 1-20 (2019)
- Publication Year :
- 2019
-
Abstract
- The results of a search for π decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 10 tagged π mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c. The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay π→ γνν¯ , improving the current limit by more than three orders of magnitude.
- Subjects :
- Exotics
Photon
S009:Desig=15
Beyond Standard Model, Exotics, Fixed target experiments, Rare decay
NA62 experiment
7. Clean energy
01 natural sciences
Dark photon
NA62
High Energy Physics - Experiment
Settore FIS/04 - Fisica Nucleare e Subnucleare
Economica
photon: mass
photon: coupling
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
pi0: branching ratio: upper limit
K+ --> pi+ pi0
Physics
S029HPH
photon: invisible decay
Coupling (probability)
K+: hadronic decay
mass dependence
Fixed target experiment
Fixed target experiments
Production (computer science)
S009.15
K+: secondary beam
beyond standard model
Particle Physics - Experiment
Exotic
rare decay
Nuclear and High Energy Physics
Particle physics
Meson
pi0: radiative decay
coupling constant: upper limit
Partícules (Física nuclear)
PE2_2
0103 physical sciences
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
pi0 --> photon neutrino antineutrino
010306 general physics
fixed target experiments
photon: hidden sector
pi0: electromagnetic decay
hep-ex
010308 nuclear & particles physics
Branching fraction
exotics
CERN SPS
Rare decay
Orders of magnitude (time)
Beyond Standard Model
lcsh:QC770-798
High Energy Physics::Experiment
Camps, Teoria quàntica de
experimental results
Subjects
Details
- Language :
- English
- ISSN :
- 11266708 and 10298479
- Database :
- OpenAIRE
- Journal :
- JOURNAL OF HIGH ENERGY PHYSICS, Digital.CSIC. Repositorio Institucional del CSIC, instname, Journal of High Energy Physics, Journal of High Energy Physics, Springer, 2019, 05, pp.182. ⟨10.1007/JHEP05(2019)182⟩, JHEP, JHEP, 2019, 05, pp.182. ⟨10.1007/JHEP05(2019)182⟩, BASE-Bielefeld Academic Search Engine, The NA62 Collaboration Cortina Gil, Eduardo Kleimenova, A. Minucci, E. Husek, Tomas 2019 Search for production of an invisible dark photon in π0 decays The Journal of high energy physics 05 182, RODERIC: Repositorio Institucional de la Universitat de Valéncia, RODERIC. Repositorio Institucional de la Universitat de Valéncia, Journal of High Energy Physics (Print), Vol. 05, no.5, p. 182 (2019), Journal of High Energy Physics, 2019, 05, pp.182. ⟨10.1007/JHEP05(2019)182⟩, Temur Enik, Journal of High Energy Physics, Vol 2019, Iss 5, Pp 1-20 (2019)
- Accession number :
- edsair.doi.dedup.....82c1956f7972c25fb2d4fe2d7863187b