Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Tommy Ohlsson"'
Autor:
Tommy Ohlsson, Manfred Lindner
Publikováno v:
Nuclear Physics B, Vol 1003, Iss , Pp 116516- (2024)
Externí odkaz:
https://doaj.org/article/9717e98aece9459fbac3d1e0ab454923
Autor:
Tommy Ohlsson
Publikováno v:
Nuclear Physics B, Vol 993, Iss , Pp 116268- (2023)
Proton decay is a hypothetical form of particle decay in which protons are assumed to decay into lighter particles. This form of decay has yet to be detected. In this contribution to the proceedings of Neutrino 2022, we review the current status of p
Externí odkaz:
https://doaj.org/article/be51c85ac31e4b8ea0ff61a6952a3095
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-19 (2022)
Abstract We investigate the options for imposing flavor symmetries on a minimal renormalizable non-supersymmetric SU(5) grand unified theory, without introducing additional flavor-related fields. Such symmetries reduce the number of free parameters i
Externí odkaz:
https://doaj.org/article/366af19f5ec84088989627c03874d9e3
Autor:
Tommy Ohlsson, Marcus Pernow
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-18 (2021)
Abstract We consider a class of SO(10) models with flavor symmetries in the Yukawa sector and investigate their viability by performing numerical fits to the fermion masses and mixing parameters. The fitting procedure involves a top-down approach in
Externí odkaz:
https://doaj.org/article/38e25826548242f7ac1485d6324a5da7
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-23 (2021)
Abstract We explore invisible neutrino decay in which a heavy active neutrino state decays into a light sterile neutrino state and present a comparative analysis of two baseline options, 540 km and 360 km, for the ESSnuSB experimental setup. Our anal
Externí odkaz:
https://doaj.org/article/9d666aa7ebbf47f7855276d909b4dbf2
Autor:
Tommy Ohlsson, Marcus Pernow
Publikováno v:
Nuclear Physics B, Vol 978, Iss , Pp 115729- (2022)
We investigate matching conditions and threshold corrections between full and effective theories based on the type I seesaw mechanism. In general, using an intuitive Feynman diagrammatical approach, we compute the amplitudes before and after integrat
Externí odkaz:
https://doaj.org/article/59a3978799f6453c81ae0f7ae74a6cf5
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 9, Pp 1-18 (2020)
Abstract Despite the successes of the Standard Model of particle physics, it is known to suffer from a number of deficiencies. Several of these can be addressed within non-supersymmetric theories of grand unification based on $$\text {SO}(10)$$ SO (
Externí odkaz:
https://doaj.org/article/886434c751b64c32af384ba60c531f19
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-40 (2020)
Abstract We review and investigate lepton flavor models, stemming from discrete non- Abelian flavor symmetries, described by one or two free model parameters. First, we confront eleven one- and seven two-parameter models with current results on lepto
Externí odkaz:
https://doaj.org/article/99d7ab1363d44c348833cb9ee8dcaf33
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 3, Pp 1-17 (2020)
Abstract We present a comprehensive analysis in the 3+1 active-sterile neutrino oscillation scenario for the sensitivity of the ESSnuSB experiment in the presence of light sterile neutrinos assuming both a far (FD) and a near (ND) detector. Our analy
Externí odkaz:
https://doaj.org/article/ce664dd0d5b7418e97870f2e14114183
Publikováno v:
Nuclear Physics B, Vol 974, Iss , Pp 115616- (2022)
We investigate the mass spectra of exotic hadrons known as hexaquarks in the form of dibaryons. We use a phenomenological model based on an extended version of the Gürsey–Radicati mass formula for hadrons to include non-charmed baryons, charmed ba
Externí odkaz:
https://doaj.org/article/7ffd1bf78fc140cdaa3eff7ded191aee