Cargando…
Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment
Light-by-light (LbL) scattering ($\gamma \gamma \rightarrow \gamma \gamma $) is a fundamental quantum mechanical process which could not be observed until recently due to its tiny cross section. By using huge photon fluxes from lead-on-lead (PbPb) ultraperipheral collisions (UPCs), the process has n...
Autor principal: | |
---|---|
Lenguaje: | eng |
Publicado: |
2022
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1007/978-981-19-2354-8_87 http://cds.cern.ch/record/2848751 |
_version_ | 1780976863240257536 |
---|---|
author | Chudasama, Ruchi |
author_facet | Chudasama, Ruchi |
author_sort | Chudasama, Ruchi |
collection | CERN |
description | Light-by-light (LbL) scattering ($\gamma \gamma \rightarrow \gamma \gamma $) is a fundamental quantum mechanical process which could not be observed until recently due to its tiny cross section. By using huge photon fluxes from lead-on-lead (PbPb) ultraperipheral collisions (UPCs), the process has now been observed by both ATLAS and CMS experiments. LbL process is also a sensitive channel to probe physics beyond the standard model where an intermediate pseudoscalar, axion-like-particle (a) could be produced, i.e., ($\gamma \gamma \rightarrow a \rightarrow \gamma \gamma $). The diphoton invariant mass distribution of LbL process is used to search for such a resonance production. A new exclusion limits on the mass of the pseudoscalar axion-like particles, in the range of 5–90 GeV has been set. This report will discuss highlights of the measurement of LbL scattering by CMS experiment. |
id | cern-2848751 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28487512023-02-11T22:52:14Zdoi:10.1007/978-981-19-2354-8_87http://cds.cern.ch/record/2848751engChudasama, RuchiObservation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS ExperimentParticle Physics - ExperimentLight-by-light (LbL) scattering ($\gamma \gamma \rightarrow \gamma \gamma $) is a fundamental quantum mechanical process which could not be observed until recently due to its tiny cross section. By using huge photon fluxes from lead-on-lead (PbPb) ultraperipheral collisions (UPCs), the process has now been observed by both ATLAS and CMS experiments. LbL process is also a sensitive channel to probe physics beyond the standard model where an intermediate pseudoscalar, axion-like-particle (a) could be produced, i.e., ($\gamma \gamma \rightarrow a \rightarrow \gamma \gamma $). The diphoton invariant mass distribution of LbL process is used to search for such a resonance production. A new exclusion limits on the mass of the pseudoscalar axion-like particles, in the range of 5–90 GeV has been set. This report will discuss highlights of the measurement of LbL scattering by CMS experiment.oai:cds.cern.ch:28487512022 |
spellingShingle | Particle Physics - Experiment Chudasama, Ruchi Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment |
title | Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment |
title_full | Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment |
title_fullStr | Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment |
title_full_unstemmed | Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment |
title_short | Observation of Light-by-Light Scattering and Search for Axion-Like Particles with CMS Experiment |
title_sort | observation of light-by-light scattering and search for axion-like particles with cms experiment |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1007/978-981-19-2354-8_87 http://cds.cern.ch/record/2848751 |
work_keys_str_mv | AT chudasamaruchi observationoflightbylightscatteringandsearchforaxionlikeparticleswithcmsexperiment |