Direct and Indirect Probes for Composite Dark Matter
| Autor: | Maxim Y. Khlopov |
|---|---|
| Přispěvatelé: | AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Antiparticle
gamma ray: background new physics: signature Physics beyond the Standard Model General Physics and Astronomy technicolor interaction: Coulomb 01 natural sciences particle: stability PAMELA composite dark matter matter: density Mathematical Physics helium: primordial Physics dark atoms atom charged particle lcsh:QC1-999 Charged particle helium: bound state baryon: asymmetry interpretation of experiments: CERN LHC Coll Materials Science (miscellaneous) Dark matter Biophysics elementary particles positron: annihilation Astrophysics::Cosmology and Extragalactic Astrophysics dark matter Nuclear physics galaxy: formation Baryon asymmetry same sign 0103 physical sciences Physical and Theoretical Chemistry 010306 general physics stable double charged particles antiparticle deep underground detector Baryon Pair production pair production dark matter: composite 13. Climate action hydrogen [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] lcsh:Physics Lepton |
| Zdroj: | Front.in Phys. Front.in Phys., 2019, 7, pp.4. ⟨10.3389/fphy.2019.00004⟩ Frontiers in Physics, Vol 7 (2019) |
| DOI: | 10.3389/fphy.2019.00004⟩ |
| Popis: | International audience; Dark matter candidates are one of the profound signatures of new physics, reflecting existence of new stable particles. If such particles are charged they can bind with ordinary electrons, forming anomalous isotopes. Severe constraints on the anomalous hydrogen exclude new stable single charged particles, but the case of stable double charged particles is not excluded so easily. Similar to ordinary baryonic matter dark matter candidates can be in the form of neutral dark atoms in which new stable or sufficiently long living double charged particles are bound by ordinary Coulomb interaction. In the most simple case only negative double charged particles are bound in O-helium (OHe) dark atoms with primordial helium. OHe hypothesis can provide the solution for puzzles of direct dark matter searches by specifics of OHe interaction in the matter of underground detectors. OHe interaction in the matter can lead to formation of various exotic forms of O-nuclearities. Provided that the mass of the double charged particle is around 1.25 TeV OHe hypothesis can explain the observed positron annihilation line excess in the galactic bulge by pair production in de-excitation of OHe atoms colliding in this region. In the model of Walking Technicolor generation of primordial excess of negatively charged techniparticles (over their antiparticles) can be related to the baryon asymmetry of the Universe, giving proper relationship of baryonic and non-baryonic matter densities. Such primordial excess may be accompanied by a subdominant excess of longliving positively double charged techniparticles, whose decay to same sign pair of leptons can explain the high energy cosmic positron anomaly, detected by PAMELA and AMS02. This explanation should be confronted with the cosmic gamma ray background measured by FERMI/LAT, what put upper limit on the mass of a decaying double charged particle. It makes search for stable double charged particles at the LHC a direct probe for composite dark matter hypothesis. |
| Databáze: | OpenAIRE |
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