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Pregled bibliografske jedinice broj: 910293

Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment


Horvat, Raul; Trampetic, Josip; You, Jiangyang
Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment // Physics letters. B, 772 (2017), 10; 130-135 doi:10.1016/j.physletb.2017.06.028 (međunarodna recenzija, članak, znanstveni)


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Naslov
Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment

Autori
Horvat, Raul ; Trampetic, Josip ; You, Jiangyang

Izvornik
Physics letters. B (0370-2693) 772 (2017), 10; 130-135

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Big Bang nucleosynthesis, Neutrinos, Noncommutative geometry

Sažetak
Using a fully-fledged formulation of gauge field theory deformed by the spacetime noncommutativity, we study its impact on relic neutrino direct detection, as proposed recently by the PTOLEMY experiment. The noncommutative background tends to influence the propagating neutrinos by providing them with a tree-level vector-like coupling to photons, enabling thus otherwise sterile right-handed (RH) neutrinos to be thermally produced in the early universe. Such a new component in the universe's background radiation has been switched today to the almost fully active sea of non-relativistic neutrinos, exerting consequently some impact on the capture on tritium at PTOLEMY. The peculiarities of our nonperturbative approach tend to reflect in the cosmology as well, upon the appearances of the coupling temperature, above which RH neutrinos stay permanently decoupled from thermal environment. This entails the maximal scale of noncommutativity as well, being of order of 10^{; ; ; ; −4}; ; ; ; M_{; ; ; ; Pl}; ; ; ; , above which there is no impact whatsoever on the capture rates at PTOLEMY. The latter represents an exceptional upper bound on the scale of noncommutativity coming from phenomenology.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
EK-H2020-692194 - Ruđer Bošković Institute: Twinning for a step forward of the Theoretical Physics Division (RBI-T-WINNING) (NESTI, Fabrizio, EK - H2020-TWINN-2015) ( POIROT)
HRZZ-IP-2014-09-9582 - Prema kvantnoj gravitaciji: nekomutativna geometrija, teorija polja i kozmologija (Meljanac, Stjepan, HRZZ - 2014-09) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Raul Horvat (autor)

Avatar Url Josip Trampetić (autor)

Avatar Url Jiangyang You (autor)

Poveznice na cjeloviti tekst rada:

doi fulir.irb.hr www.sciencedirect.com arxiv.org

Citiraj ovu publikaciju:

Horvat, Raul; Trampetic, Josip; You, Jiangyang
Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment // Physics letters. B, 772 (2017), 10; 130-135 doi:10.1016/j.physletb.2017.06.028 (međunarodna recenzija, članak, znanstveni)
Horvat, R., Trampetic, J. & You, J. (2017) Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment. Physics letters. B, 772 (10), 130-135 doi:10.1016/j.physletb.2017.06.028.
@article{article, author = {Horvat, Raul and Trampetic, Josip and You, Jiangyang}, year = {2017}, pages = {130-135}, DOI = {10.1016/j.physletb.2017.06.028}, keywords = {Big Bang nucleosynthesis, Neutrinos, Noncommutative geometry}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2017.06.028}, volume = {772}, number = {10}, issn = {0370-2693}, title = {Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment}, keyword = {Big Bang nucleosynthesis, Neutrinos, Noncommutative geometry} }
@article{article, author = {Horvat, Raul and Trampetic, Josip and You, Jiangyang}, year = {2017}, pages = {130-135}, DOI = {10.1016/j.physletb.2017.06.028}, keywords = {Big Bang nucleosynthesis, Neutrinos, Noncommutative geometry}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2017.06.028}, volume = {772}, number = {10}, issn = {0370-2693}, title = {Spacetime Deformation Effect on the Early Universe and the PTOLEMY Experiment}, keyword = {Big Bang nucleosynthesis, Neutrinos, Noncommutative geometry} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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