OSQAR chameleon afterglow search experiment

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dc.contributor.authorSulc, M.
dc.contributor.authorPugnat, P.
dc.contributor.authorBallou, R.
dc.contributor.authorDeferne, G.
dc.contributor.authorHosek, J.
dc.contributor.authorKunc, S.
dc.contributor.authorSiemko, A.
dc.date.accessioned2019-07-29T06:40:11Z
dc.date.available2019-07-29T06:40:11Z
dc.date.issued2019-08-21
dc.description.abstractOSQAR experiment has been extended to the quest of chameleon particles with environment-dependent mass from the search of a magnetic afterglow effect. OSQAR-CHASE (chameleon afterglow search) has been run in 2017 using one spare LHC dipole providing a 9 T transverse magnetic field with an 18.5 W laser and state-of-the art CCD detector. Experimental results with and without magnetic field were preliminary analyzed and no clear evidence for a photon-coupled chameleons was confirmed. The very weak false signals was observed with decay time 4300 s. It can be explained by decrease of dark current from initial higher values during CCD cooling in detection phase. Increasing of the sensitivity of the OSQAR-CHASE experiment over the previous GammeV reference experiment assumes that the present coupling constant limit can be reduced around factor of 4.cs
dc.format.extent2 stranycs
dc.identifier.doi10.1016/j.nima.2018.11.065
dc.identifier.urihttps://dspace.tul.cz/handle/15240/152991
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0168900218316358?via%3Dihub
dc.language.isocscs
dc.relation.ispartofNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
dc.subjectLHC dipole magnetcs
dc.subjectMagneto-optical experimentcs
dc.subjectChameleon particlecs
dc.titleOSQAR chameleon afterglow search experimentcs
local.citation.epage188
local.citation.spage187
local.identifier.publikace6384
local.relation.volume936
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