Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Mohammadreza Zakeri"'
Autor:
Mohammadreza Zakeri, Alireza Mirahmadizadeh, Habibollah Azarbakhsh, Seyed Sina Dehghani, Maryam Janfada, Mohammad Javad Moradian, Leila Moftakhar, Mehdi Sharafi, Alireza Heiran
Publikováno v:
Journal of Preventive Medicine and Public Health, Vol 57, Iss 2, Pp 120-127 (2024)
Objectives: The coronavirus disease 2019 (COVID-19) pandemic led to increased mortality rates. To assess this impact, this ecological study aimed to estimate the excess death counts in southern Iran. Methods: The study obtained weekly death counts by
Externí odkaz:
https://doaj.org/article/489f76e094ad45b7a1e63706a9bf1b57
Autor:
Susan Gardner, Mohammadreza Zakeri
Publikováno v:
Universe, Vol 10, Iss 2, p 67 (2024)
Tensions in the measurements of neutron and kaon weak decays, such as of the neutron lifetime, may speak to the existence of new particles and dynamics not present in the Standard Model (SM). In scenarios with dark sectors, particles that couple feeb
Externí odkaz:
https://doaj.org/article/ce529f52b8de45719a2d5b902be743f1
Autor:
Mohammad Hasan Keshavarzi, Saeed Shahabi, Ahmad Kalateh Sadati, Maryam Hashempour‐Sadeghian, Leila Zarei, Ali Ardekani, Ali Akbary, Mohammadreza Zakeri, Seyed Taghi Heydari, Kamran Bagheri Lankarani
Publikováno v:
Health Science Reports, Vol 6, Iss 2, Pp n/a-n/a (2023)
Abstract Introduction Social capital is critical to organizational dynamics, particularly in developing countries. This study explored strategies for enhancing social capital among faculty members at seven medical universities in the south of Iran. M
Externí odkaz:
https://doaj.org/article/947ed2d2411b43a59e4d34f7e6ceb8df
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 1, Pp 1-28 (2020)
Abstract Exotic Higgs decays are promising channels to discover new physics in the near future. We present a simple model with a new light scalar that couples to the Standard Model through a charged lepton-flavor violating interaction. This can yield
Externí odkaz:
https://doaj.org/article/6b93bb09490c4bee963e5f24a9da89cb
Publikováno v:
Symmetry, Vol 14, Iss 3, p 518 (2022)
The neutron lifetime anomaly has been used to motivate the introduction of new physics with hidden-sector particles coupled to baryon number, and on which neutron stars provide powerful constraints. Although the neutron lifetime anomaly may eventuall
Externí odkaz:
https://doaj.org/article/accee9bccd4f40e286b28ac49eb9f1ee
Publikováno v:
Nuclear Physics B, Vol 928, Iss C, Pp 520-534 (2018)
The alternative [SU(3)]4 model of leptonic color and dark matter is discussed. It unifies at MU∼1014 GeV and has the low-energy subgroup SU(3)q×SU(2)l×SU(2)L×SU(2)R×U(1)X with (u,h)R instead of (u,d)R as doublets under SU(2)R. It has the built-
Externí odkaz:
https://doaj.org/article/3763ba4b21df411bb682ed7cd0da7243
Publikováno v:
Physics Letters B, Vol 777, Iss , Pp 121-124 (2018)
Two theoretically well-motivated gauge extensions of the standard model are SU(3)C×SU(3)L×SU(3)R and SU(3)q×SU(3)L×SU(3)l×SU(3)R, where SU(3)q is the same as SU(3)C and SU(3)l is its color leptonic counterpart. Each has three variations, accordi
Externí odkaz:
https://doaj.org/article/a4682421dbf643eb88b28ccb10592c78
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 2, Pp 1-8 (2018)
Abstract An alternative left–right model of quarks and leptons, where the $$SU(2)_R$$ SU(2)R lepton doublet $$(\nu ,l)_R$$ (ν,l)R is replaced with $$(n,l)_R$$ (n,l)R so that $$n_R$$ nR is not the Dirac mass partner of $$\nu _L$$ νL , has been kno
Externí odkaz:
https://doaj.org/article/fe557a03352e404289cea79cbbcfe360
Publikováno v:
Physics Letters B, Vol 769, Iss C, Pp 267-271 (2017)
The [SU(3)]4 quartification model of Babu, Ma, and Willenbrock (BMW), proposed in 2003, predicts a confining leptonic color SU(2) gauge symmetry, which becomes strong at the keV scale. It also predicts the existence of three families of half-charged
Externí odkaz:
https://doaj.org/article/e620c471689d412da2f7da3721d14e91
Publikováno v:
Physics Letters B, Vol 766, Iss C, Pp 149-152 (2017)
If the standard model of quarks and leptons is extended to include three singlet right-handed neutrinos, then the resulting fermion structure admits an infinite number of anomaly-free solutions with just one simple constraint. Well-known examples sat
Externí odkaz:
https://doaj.org/article/82dcc63a3d9947439dd9ff4389eaacf1