Flavor and collider signatures of asymmetric dark matter

Kim, Ian-Woo; Zurek, Kathryn M.

doi:10.1103/physrevd.89.035008

Cited by 30 publications

(35 citation statements)

References 70 publications

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“…(See [10] and the references therein for review.) For ADM communicating with the SM through higher dimension operators, if the suppression scale of the operator is between 1 TeV and 10 4 TeV, collider and flavor signatures are relevant for probing ADM, as explored in [60]. For a much higher suppression scale, around the GUT scale, however, one may worry that determining the nature of the ADM mechanism becomes essentially impossible.…”

Section: Discussionmentioning

confidence: 99%

Indirect detection signatures for the origin of asymmetric dark matter

Zhao

Zurek

2014

J. High Energ. Phys.

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Abstract:We study the decay signatures of Asymmetric Dark Matter (ADM) via higher dimension operators which are responsible for generating the primordial dark matter (DM) asymmetry. Since the signatures are sensitive both to the nature of the higher dimension operator generating the DM asymmetry and to the sign of the baryon or lepton number that the DM carries, indirect detection may provide a window into the nature of the mechanism which generates the DM asymmetry. We consider in particular dimension-6 fermionic operators of the form(or operators related through a Hermitian conjugate) with the scale M around or just below the GUT scale. We derive constraints on ADM particles both in the natural mass range (around a few GeV), as well as in the range between 100 GeV to 10 TeV. For light ADM, we focus on constraints from both the low energy gamma ray data and proton/antiproton fluxes. For heavy ADM, we consider γ-rays and proton/anti-proton fluxes, and we fit e + /e − data from AMS-02 and H.E.S.S. (neglecting the Fermi charged particle fluxes which disagree with AMS-02 below 100 GeV). We show that, although the best fit regions from electron/positron measurement are still in tension with other channels on account of the H.E.S.S. measurement at high energies, compared to an ordinary symmetric dark matter scenario, the decay of DM with a primordial asymmetry reduces the tension. Better measurement of the flux at high energy will be necessary to draw a definite conclusion about the viability of decaying DM as source for the signals.

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Section: Discussionmentioning

confidence: 99%

Indirect detection signatures for the origin of asymmetric dark matter

Zhao

Zurek

2014

J. High Energ. Phys.

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“…Some studies attempted to reconcile these signals with other null experiments in the ADM scenario [271][272][273][274][275], while ADM limits have been derived from direct detection in [276,277]. The new physics element in the ADM models -light scalar particles which mediate the selfannihilation or the non-renormalizable interactions -can also affect collider phenomenology [268,[278][279][280].…”

Section: Asymmetric Dark Matter (Adm)mentioning

confidence: 95%

Dark matter production in the early Universe: Beyond the thermal WIMP paradigm

et al. 2015

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a b s t r a c tIncreasingly stringent limits from LHC searches for new physics, coupled with lack of convincing signals of weakly interacting massive particle (WIMP) in dark matter searches, have tightly constrained many realizations of the standard paradigm of thermally produced WIMPs as cold dark matter. In this article, we review more generally both thermally and non-thermally produced dark matter (DM). One may classify DM models into two broad categories: one involving bosonic coherent motion (BCM) and the other involving WIMPs. BCM and WIMP candidates need, respectively, some approximate global symmetries and almost exact discrete symmetries. Supersymmetric axion models are highly motivated since they emerge from compelling and elegant solutions to the two fine-tuning problems of the Standard Model: the strong CP problem and the gauge hierarchy problem. We review here non-thermal relics in a general setup, but we also pay particular attention to the rich cosmological properties of various aspects of mixed SUSY/axion dark matter candidates which can involve both WIMPs and BCM in an interwoven manner. We also review briefly a panoply of alternative thermal and non-thermal DM candidates.

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“…LHCb also adds sensitivity to states with a combination of high mass and short decay time [45][46][47][48][49]. Longer-lived, GeV-scale LLPs are difficult for all three experiments, but are theoreti-cally well-motivated by various models of, e.g., asymmetric dark matter [15,17], strongly-interacting dark matter [19,50] and neutral naturalness [51]. Some scenarios may be searched for with current and future beam dump experiments such as NA62 [52] or SHiP [53], but comprehensive coverage should include a large sample of Higgs bosons, which at the moment can only be supplied by the LHC.…”

Section: Introductionmentioning

confidence: 99%

Searching for long-lived particles: A compact detector for exotics at LHCb

et al. 2018

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We advocate for the construction of a new detector element at the LHCb experiment, designed to search for displaced decays of beyond Standard Model long-lived particles, taking advantage of a large shielded space in the LHCb cavern that is expected to soon become available. We discuss the general features and putative capabilities of such an experiment, as well as its various advantages and complementarities with respect to the existing LHC experiments and proposals such as SHiP and MATHUSLA. For two well-motivated beyond Standard Model benchmark scenarios-Higgs decay to dark photons and B meson decays via a Higgs mixing portal-the reach either complements or exceeds that predicted for other LHC experiments.

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Flavor and collider signatures of asymmetric dark matter

Cited by 30 publications

References 70 publications

Indirect detection signatures for the origin of asymmetric dark matter

Indirect detection signatures for the origin of asymmetric dark matter

Dark matter production in the early Universe: Beyond the thermal WIMP paradigm

Searching for long-lived particles: A compact detector for exotics at LHCb

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