Search for the “Dark Photon” and the “Dark Higgs” at Belle

Jaeglé, I.

doi:10.1016/j.nuclphysbps.2012.11.008

Cited by 4 publications

(7 citation statements)

References 32 publications

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“…However beam dump experiments and low energy collider can access this phase space. Additionally rare decays of Υ and B meson searches can be used to set constraints on light scalar (Higgs-like) mediators that is constructed to be in the same multiplet with the DM particle [69] Experiments at low energy lepton colliders such as BaBar [70] and Belle [71] provide unique sensitivity to very low DM masses and light mediators of 10 GeV in a clean experimental environment. The simplified models used replace the coupling of the mediator to quarks g q with a corresponding coupling to electrons, g e .…”

Section: 32mentioning

confidence: 99%

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The pursuit of dark matter at colliders—an overview

Penning¹

2018

J. Phys. G: Nucl. Part. Phys.

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Dark matter is one of the main puzzles in fundamental physics and the goal of a diverse, multi-pronged research program. Underground and astrophysical searches look for for dark matter particles in the cosmos, either by interacting directly or by searching for dark matter annihilation. Particle colliders, in contrast, might produce dark matter in the laboratory and are able to probe most basic dark-matter-matter interactions. They are sensitive to low dark matter masses, provide complementary information at higher masses and are subject to different systematic uncertainties. Collider searches are therefore an important part of an inter-disciplinary dark matter search strategy. This article highlights the experimental and phenomenological development in collider dark matter searches of recent years and their connection with the wider field. PACS numbers: 95.35.+d

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Section: 32mentioning

confidence: 99%

“…Only about 55 fb −1 of the 500 fb −1 dataset of BaBar is recorded with a mono-photon trigger. The Belle [71] and KLOE [185] experiments didn't employ a mono-photon trigger and hence no re-analysis is possible. As shown in Fig.…”

Section: Low Energy and Beam Dump Experimentsmentioning

confidence: 99%

The pursuit of dark matter at colliders—an overview

Penning¹

2018

J. Phys. G: Nucl. Part. Phys.

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“…As shown in [36,37], dark matter annihilating via a light mediator can fit these data well for an approximately thermal cross section. Thus, the combination of these signals (X-ray and gamma-ray) motivate additional low energy searches for the mediator φ [38][39][40][41], such as those at APEX [40,42], MAMI [43], HPS [44] and DarkLight [45], searches at low energye + e − colliders [46][47][48][49][50] as well LHC searches [51,52] for the associated lepton jets signal [53,54]. (For a review, see [55].…”

Section: B Galactic Centermentioning

confidence: 99%

X-ray line from exciting dark matter

Finkbeiner

Weiner

2016

Phys. Rev. D

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The eXciting Dark Matter (XDM) model was proposed as a mechanism to efficiently convert the kinetic energy (in sufficiently hot environments) of dark matter into e+e-pairs. The standard scenario invokes a doublet of nearly degenerate DM states, and a dark force to mediate a large upscattering cross section between the two. For heavy (∼ TeV) DM, the kinetic energy of WIMPs in large (galaxy-sized or larger) halos is capable of producing low-energy positrons. For lighter dark matter, this is kinematically impossible, and the unique observable signature becomes an X-ray line, arising from χχ → χ * χ * , followed by χ * → χγ. This variant of XDM is distinctive from other DM X-ray scenarios in that its signatures tend to be most present in more massive, hotter environments, such as clusters, rather than nearby dwarfs, and has different dependencies from decaying models.We find that it is capable of explaining the recently reported X-ray line at 3.56 keV. For very long lifetimes of the excited state, primordial decays can explain the signal without the presence of upscattering. Thermal models freeze-out as in the normal XDM setup, via annihilations to the light boson φ. For suitable masses the annihilation χχ → φφ followed by φ → SM can explain the reported gamma-ray signature from the galactic center. Direct detection is discussed, including the possibility of explaining DAMA via the "Luminous" dark matter approach. Quite generally, the proximity of the 3.56 keV line to the energy scale of DAMA motivates a reexamination of electromagnetic explanations. Other signals, including lepton jets and the modification of cores of dwarf galaxies are also considered.PACS numbers: 95.35.+d

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“…If the mass of h exeeds mass of the U boson the transition h → U is allowed and one can search for the Standard Model decay products of both U bosons produced (e.g. two di-lepton or di-pion pairs) [25,26]. The KLOE-2 analysis was done assuming m h < m U , therefore we were looking for the missing mass in the final state of µ + µ − [16].…”

Section: Search For Dark Forcesmentioning

confidence: 99%

The KLOE-2 experiment at DAΦNE

Silarski

2016

EPJ Web Conf.

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Abstract. The KLOE-2 experiment at the INFN Laboratori Nazionali di Frascati (LNF) is currently taking data at the upgraded e + e − DAFNE collider. Present Run II follows a development phase to assess the feasibility of a long term acquisition program, Run I, which successfully ended in July 2015 with 1 fb −1 integrated luminosity collected in less than eight months. KLOE-2 represents the continuation of the KLOE experiment with a new physics program. The KLOE detector has undergone several upgrades including state-of-the-art cylindrical GEM Inner Tracker, electron-positron taggers for the γγ-physics studies and new calorimeters around the interaction point. In this article we briefly present the overview of the KLOE-2 experiment including the present status and achievements together with the physics plans.

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Search for the “Dark Photon” and the “Dark Higgs” at Belle

Cited by 4 publications

References 32 publications

The pursuit of dark matter at colliders—an overview

The pursuit of dark matter at colliders—an overview

X-ray line from exciting dark matter

The KLOE-2 experiment at DAΦNE

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