Superheavy dark matter from string theory

Abstract Explicit string models which can realize inflation and low-energy supersymmetry are notoriously difficult to achieve. Given that sequestering requires very specific configurations, supersymmetric particles are in general expected to be very heavy implying that the neutralino dark matter sho...

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Main Authors: Rouzbeh Allahverdi, Igor Bröckel, Michele Cicoli, Jacek K. Osiński
Format: Article
Language:English
Published: SpringerOpen 2021-02-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP02(2021)026
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author Rouzbeh Allahverdi
Igor Bröckel
Michele Cicoli
Jacek K. Osiński
author_facet Rouzbeh Allahverdi
Igor Bröckel
Michele Cicoli
Jacek K. Osiński
author_sort Rouzbeh Allahverdi
collection DOAJ
description Abstract Explicit string models which can realize inflation and low-energy supersymmetry are notoriously difficult to achieve. Given that sequestering requires very specific configurations, supersymmetric particles are in general expected to be very heavy implying that the neutralino dark matter should be overproduced in a standard thermal history. However, in this paper we point out that this is generically not the case since early matter domination driven by string moduli can dilute the dark matter abundance down to the observed value. We argue that generic features of string compactifications, namely a high supersymmetry breaking scale and late time epochs of modulus domination, might imply superheavy neutralino dark matter with mass around 1010–1011 GeV. Interestingly, this is the right range to explain the recent detection of ultra-high-energy neutrinos by IceCube and ANITA via dark matter decay.
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spelling doaj.art-3e3d4d05cb3048ad9a2e9f21a90e3aad2022-12-21T19:01:22ZengSpringerOpenJournal of High Energy Physics1029-84792021-02-012021213610.1007/JHEP02(2021)026Superheavy dark matter from string theoryRouzbeh Allahverdi0Igor Bröckel1Michele Cicoli2Jacek K. Osiński3Department of Physics and Astronomy, University of New MexicoDipartimento di Fisica ed Astronomia, Università di BolognaDipartimento di Fisica ed Astronomia, Università di BolognaDepartment of Physics and Astronomy, University of New MexicoAbstract Explicit string models which can realize inflation and low-energy supersymmetry are notoriously difficult to achieve. Given that sequestering requires very specific configurations, supersymmetric particles are in general expected to be very heavy implying that the neutralino dark matter should be overproduced in a standard thermal history. However, in this paper we point out that this is generically not the case since early matter domination driven by string moduli can dilute the dark matter abundance down to the observed value. We argue that generic features of string compactifications, namely a high supersymmetry breaking scale and late time epochs of modulus domination, might imply superheavy neutralino dark matter with mass around 1010–1011 GeV. Interestingly, this is the right range to explain the recent detection of ultra-high-energy neutrinos by IceCube and ANITA via dark matter decay.https://doi.org/10.1007/JHEP02(2021)026Strings and branes phenomenologySupersymmetry Phenomenology
spellingShingle Rouzbeh Allahverdi
Igor Bröckel
Michele Cicoli
Jacek K. Osiński
Superheavy dark matter from string theory
Journal of High Energy Physics
Strings and branes phenomenology
Supersymmetry Phenomenology
title Superheavy dark matter from string theory
title_full Superheavy dark matter from string theory
title_fullStr Superheavy dark matter from string theory
title_full_unstemmed Superheavy dark matter from string theory
title_short Superheavy dark matter from string theory
title_sort superheavy dark matter from string theory
topic Strings and branes phenomenology
Supersymmetry Phenomenology
url https://doi.org/10.1007/JHEP02(2021)026
work_keys_str_mv AT rouzbehallahverdi superheavydarkmatterfromstringtheory
AT igorbrockel superheavydarkmatterfromstringtheory
AT michelecicoli superheavydarkmatterfromstringtheory
AT jacekkosinski superheavydarkmatterfromstringtheory