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Pregled bibliografske jedinice broj: 674136

Self-energies on deformed spacetimes


Horvat, Raul; Ilakovac, Amon; Trampetić, Josip; You, Jiangyang J.
Self-energies on deformed spacetimes // Journal of high energy physics, 1311 (2013), 71-1 doi:10.1007/JHEP11(2013)071 (međunarodna recenzija, članak, znanstveni)


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Naslov
Self-energies on deformed spacetimes

Autori
Horvat, Raul ; Ilakovac, Amon ; Trampetić, Josip ; You, Jiangyang J.

Izvornik
Journal of high energy physics (1029-8479) 1311 (2013); 71-1

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

Ključne riječi
non-commutative geometry; photon and neutrino physics; nonpertubative physics

Sažetak
We study one-loop photon (Π) and neutrino (Σ) self-energies in a U(1) covariant gauge-theory on d-dimensional noncommutative spaces determined by a antisymmetric-constant tensor θ^{; ; μν}; ; . For the general fermion-photon (S_f ) and photon self-interaction (S_g ) the closed form results reveal self-energies besetting with all kind of pathological terms: the UV divergence, the quadratic UV/IR mixing terms as well as a logarithmic IR divergent term of the type ln(μ^2(θp)^2). In addition, the photon-loop produces new tensor structures satisfying transversality condition by themselves. We show that the photon self-energy in four-dimensional Euclidean space-time can be reduced to two finite terms by imposing a specific full rank of θ μν and setting parameters (κ_f , κ_g ) = (0, 3). In this case the neutrino two-point function vanishes. Thus for a specific point (0, 3) in the parameter-space (κ_f , κ_g ), a covariant θ-exact approach is able to produce a divergence-free result for one-loop quantum corrections, having also well-defined both the commutative limit as well as the pointlike limit of an extended object. While in two-dimensional space the photon self-energy is finite for arbitrary (κ_f , κ_g ) combinations, the neutrino self-energy still contains an superficial IR divergence.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
098-0982930-2872
119-0982930-1016 - Elementarne čestice, teorija polja i kozmologija (Picek, Ivica, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Jiangyang You (autor)

Avatar Url Josip Trampetić (autor)

Avatar Url Raul Horvat (autor)

Avatar Url Amon Ilakovac (autor)

Poveznice na cjeloviti tekst rada:

doi link.springer.com

Citiraj ovu publikaciju:

Horvat, Raul; Ilakovac, Amon; Trampetić, Josip; You, Jiangyang J.
Self-energies on deformed spacetimes // Journal of high energy physics, 1311 (2013), 71-1 doi:10.1007/JHEP11(2013)071 (međunarodna recenzija, članak, znanstveni)
Horvat, R., Ilakovac, A., Trampetić, J. & You, J. (2013) Self-energies on deformed spacetimes. Journal of high energy physics, 1311, 71-1 doi:10.1007/JHEP11(2013)071.
@article{article, author = {Horvat, Raul and Ilakovac, Amon and Trampeti\'{c}, Josip and You, Jiangyang J.}, year = {2013}, pages = {71-1-71-}, DOI = {10.1007/JHEP11(2013)071}, keywords = {non-commutative geometry, photon and neutrino physics, nonpertubative physics}, journal = {Journal of high energy physics}, doi = {10.1007/JHEP11(2013)071}, volume = {1311}, issn = {1029-8479}, title = {Self-energies on deformed spacetimes}, keyword = {non-commutative geometry, photon and neutrino physics, nonpertubative physics} }
@article{article, author = {Horvat, Raul and Ilakovac, Amon and Trampeti\'{c}, Josip and You, Jiangyang J.}, year = {2013}, pages = {71-1-71-}, DOI = {10.1007/JHEP11(2013)071}, keywords = {non-commutative geometry, photon and neutrino physics, nonpertubative physics}, journal = {Journal of high energy physics}, doi = {10.1007/JHEP11(2013)071}, volume = {1311}, issn = {1029-8479}, title = {Self-energies on deformed spacetimes}, keyword = {non-commutative geometry, photon and neutrino physics, nonpertubative physics} }

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


Citati:





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