Pregled bibliografske jedinice broj: 1054508
Recent limits on LIV using gamma rays
Recent limits on LIV using gamma rays // First Annual Conference of COST Action CA18108
Granada, Španjolska, 2020. (pozvano predavanje, nije recenziran, pp prezentacija, znanstveni)
CROSBI ID: 1054508 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Recent limits on LIV using gamma rays
Autori
Terzić, Tomislav
Kolaboracija
MAGIC Collaboration
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni
Skup
First Annual Conference of COST Action CA18108
Mjesto i datum
Granada, Španjolska, 10.03.2020. - 13.03.2020
Vrsta sudjelovanja
Pozvano predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
Quantum gravity, Lorentz invariance violation, Very high energy gamma rays, Gamma-ray bursts
Sažetak
On January 14, 2019, the MAGIC telescopes detected GRB 190114C at teraelectronvolt energies, recording the most energetic photons ever observed from a gamma-ray burst. Using this unique observation, we probe energy dependence of the speed of light in vacuo as predicted by several quantum-gravity models. Based on a set of well-justified assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order modification of the speed of light. This is the first Lorentz invariance violation (LIV) test ever performed on a gamma-ray burst signal at TeV energies and will serve as a stepping stone to future studies. The results will be put into context of the most stringent bounds on LIV obtained using gamma rays.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
