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BBN Constraints on Universally Coupled Ultralight Dark Matter

Ultralight scalar dark matter (DM) can gain an interaction to all massive Standard Model (SM) particles through a universal coupling. Such a coupling can modify the properties of said SM particles through the generation of an effective mass. Flambaum and Stadnik already exploited this effect in a si...

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Autor principal: Sørensen, Philip
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:http://cds.cern.ch/record/2638465
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author Sørensen, Philip
author_facet Sørensen, Philip
author_sort Sørensen, Philip
collection CERN
description Ultralight scalar dark matter (DM) can gain an interaction to all massive Standard Model (SM) particles through a universal coupling. Such a coupling can modify the properties of said SM particles through the generation of an effective mass. Flambaum and Stadnik already exploited this effect in a similar model to constrain the DM phase space through its effect on Big Bang Nucleosynthesis (BBN). However there is also a back-reaction from SM to DM particles which modifies the DM mass. Due to the ultra low DM mass this effect, which has not been studied previously in the literature, can be substantial. By including this back-reaction in the DM evolution we derive new BBN constraints and find them to deviate significantly from those derived in previous work.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
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spelling cern-26384652019-09-30T06:29:59Zhttp://cds.cern.ch/record/2638465engSørensen, PhilipBBN Constraints on Universally Coupled Ultralight Dark MatterParticle Physics - PhenomenologyUltralight scalar dark matter (DM) can gain an interaction to all massive Standard Model (SM) particles through a universal coupling. Such a coupling can modify the properties of said SM particles through the generation of an effective mass. Flambaum and Stadnik already exploited this effect in a similar model to constrain the DM phase space through its effect on Big Bang Nucleosynthesis (BBN). However there is also a back-reaction from SM to DM particles which modifies the DM mass. Due to the ultra low DM mass this effect, which has not been studied previously in the literature, can be substantial. By including this back-reaction in the DM evolution we derive new BBN constraints and find them to deviate significantly from those derived in previous work.CERN-STUDENTS-Note-2018-135oai:cds.cern.ch:26384652018-09-14
spellingShingle Particle Physics - Phenomenology
Sørensen, Philip
BBN Constraints on Universally Coupled Ultralight Dark Matter
title BBN Constraints on Universally Coupled Ultralight Dark Matter
title_full BBN Constraints on Universally Coupled Ultralight Dark Matter
title_fullStr BBN Constraints on Universally Coupled Ultralight Dark Matter
title_full_unstemmed BBN Constraints on Universally Coupled Ultralight Dark Matter
title_short BBN Constraints on Universally Coupled Ultralight Dark Matter
title_sort bbn constraints on universally coupled ultralight dark matter
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/2638465
work_keys_str_mv AT sørensenphilip bbnconstraintsonuniversallycoupledultralightdarkmatter