Recent Progress in Search for Dark Sector Signatures

Deliyergiyev, M.

doi:10.1515/phys-2016-0034

Cited by 24 publications

(13 citation statements)

References 196 publications

(395 reference statements)

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“…Among the many models for the dark sector (see, for example, the review articles in [13][14][15][16][17]), we use one made to resemble QED -that is, a theory of charged fermions. It has the advantage of being simple.…”

Section: A Model Of the Dark Sectormentioning

confidence: 99%

Dark-sector physics in the search for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ and $$K_L\rightarrow \pi ^0 \nu {\bar{\nu }}$$

Fabbrichesi

Gabrielli

2020

Eur. Phys. J. C

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We compute the contribution of the decays K L → π 0 QQ and K + → π + QQ, where Q is a dark fermion of the dark sector, to the measured widths for the rare decays K + → π + νν and K L → π 0 νν. The recent experimental limit for Γ (K + → π + νν) from NA62 sets a new and very strict bound on the dark-sector parameters. A branching ratio for K L → π 0 QQ within the reach of the KOTO sensitivity is possible. The Grossman-Nir bound is weakened by the asymmetric effect of the different kinematic cuts enforced by the NA62 and KOTO experiments. This last feature holds true for all models where the decay into invisible states takes place through a light or massless intermediate state.

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Section: A Model Of the Dark Sectormentioning

confidence: 99%

Dark-sector physics in the search for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ and $$K_L\rightarrow \pi ^0 \nu {\bar{\nu }}$$

Fabbrichesi

Gabrielli

2020

Eur. Phys. J. C

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“…This then expands the usual SU (2) × U (1) Standard Model to SU (2) × U (1) × U (1). Introducing an extra, massive U (1) gauge boson may be phenomenologically interesting in light of dark/hidden photon models [14] as well as light-shining-through-wall experiments [15], all of which require an extra U (1) gauge boson. The magnetic photon might provide an electromagnetic origin for these dark/hidden photon models.…”

Section: Introductionmentioning

confidence: 99%

Dirac and non-Dirac conditions in the two-potential theory of magnetic charge

et al. 2018

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We investigate the Cabbibo-Ferrari, two potential approach to magnetic charge coupled to two different complex scalar fields, Φ1 and Φ2, each having different electric and magnetic charges. The scalar field, Φ1, is assumed to have a spontaneous symmetry breaking self interaction potential which gives a mass to the "magnetic" gauge potential and "magnetic" photon, while the other "electric" gauge potential and "electric" photon remain massless. The magnetic photon is hidden until one reaches energies of the order of the magnetic photon rest mass. The second scalar field, Φ2, is required in order to make the theory non-trivial. With only one field one can always use a duality rotation to rotate away either the electric or magnetic charge, and thus decouple either the associated electric or magnetic photon. In analyzing this system of two scalar fields in the Cabbibo-Ferrari approach we perform several duality and gauge transformations, which require introducing non-Dirac conditions on the initial electric and magnetic charges. We also find that due to the symmetry breaking the usual Dirac condition is altered to include the mass of the magnetic photon. We discuss the implications of these various conditions on the charges.

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“…To date, the majority of these experiments have not detected DM signatures, but anomalies that may have been induced by DM particles have been reported in some cases. Interestingly, these results listed below provide strong support for the dark-sector scenario (see, e.g., [5,19]). 1) In 2008, the PAMELA satellite-based telescope reported a cosmic-ray positron excess at energies of O(1)-O(10 2 ) GeV with high significance [20].…”

Section: Hints Of Light Dark Sector From Dark-matter Search Experimentsmentioning

confidence: 58%

Light dark sector searches at low-energy high-luminosity e + e − colliders

Yin

Zhu

2016

Front. Phys.

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Although the standard model (SM) is extremely successful, there are various motivations for considering the physics beyond the SM. For example, the SM includes neither dark energy nor dark matter, which has been confirmed through astrophysical observations. Examination of the dark sector, which contains new, light, weakly-coupled particles at the GeV scale or lower, is well motivated by both theory and dark-matter detection experiments. In this mini-review, we focus on one particular case in which these new particles can interact with SM particles through a kinematic mixing term between U (1) gauge bosons. The magnitude of the mixing can be parameterized by a parameter . Following a brief overview of the relevant motivations and the constraints determined from numerous experiments, we focus on the light dark sector phenomenology at low-energy high-luminosity e + e − colliders. These colliders are ideal for probing the new light particles, because of their large production rates and capacity for precise resonance reconstruction. Depending on the details of a given model, the typical observed signatures may also contain multi lepton pairs, displaced vertices, and/or missing energy. Through the use of extremely large data samples from existing experiments, such as KLOE, CLEO, BABAR, Belle, and BESIII, the < 10 −4 -10 −3 constraint can be obtained. Obviously, future experiments with larger datasets will provide opportunities for the discovery of new particles in the dark sector, or for stricter upper limits on . Once the light dark sector is confirmed, the particle physics landscape will be changed significantly.Keywords dark photon, electron-positron collider, dark matter PACS numbers 13.66.Hk, 95.35.+d

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Recent Progress in Search for Dark Sector Signatures

Cited by 24 publications

References 196 publications

Dark-sector physics in the search for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ and $$K_L\rightarrow \pi ^0 \nu {\bar{\nu }}$$

Dark-sector physics in the search for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ and $$K_L\rightarrow \pi ^0 \nu {\bar{\nu }}$$

Dirac and non-Dirac conditions in the two-potential theory of magnetic charge

Light dark sector searches at low-energy high-luminosity e + e − colliders

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