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pro vyhledávání: '"Ratz, Michael"'
Autor:
Ratz, Michael
Modular flavor symmetries refers to scenarios in which fermion masses respect modular symmetries. Such scenarios have been studied in the bottom-up approach and have an explicit realization in string theory. They rely on the remarkable properties of
Externí odkaz:
http://arxiv.org/abs/2405.00870
In modular invariant models of flavor, observables must be modular invariant. The observables discussed so far in the literature are functions of the modulus $\tau$ and its conjugate, $\bar\tau$. We point out that certain combinations of observables
Externí odkaz:
http://arxiv.org/abs/2401.04738
Autor:
Ramos-Sanchez, Saul, Ratz, Michael
We review efforts in string model building, focusing on the heterotic orbifold compactifications. We survey how one can, starting from an explicit string theory, obtain models which resemble Nature. These models exhibit the standard model gauge group
Externí odkaz:
http://arxiv.org/abs/2401.03125
Modular flavor symmetries provide us with a very compelling approach to the flavor problem. It has been argued that moduli values close to some special values like $\tau=i$ or $\tau=\omega$ provide us with the best fits to data. We point out that the
Externí odkaz:
http://arxiv.org/abs/2304.14437
Autor:
Almumin, Yahya, Chen, Mu-Chun, Cheng, Murong, Knapp-Perez, Victor, Li, Yulun, Mondol, Adreja, Ramos-Sanchez, Saul, Ratz, Michael, Shukla, Shreya
The neutrino sector offers one of the most sensitive probes of new physics beyond the Standard Model of Particle Physics. The mechanism of neutrino mass generation is still unknown. The observed suppression of neutrino masses hints at a large scale,
Externí odkaz:
http://arxiv.org/abs/2204.08668
Nontrivial strong dynamics often leads to the appearance of chiral composites. In phenomenological applications, these can either play the role of Standard Model particles or lift chiral exotics by partnering with them in mass terms. As a consequence
Externí odkaz:
http://arxiv.org/abs/2109.01681
Autor:
Chen, Mu-Chun, Knapp-Perez, Victor, Ramos-Hamud, Mario, Ramos-Sanchez, Saul, Ratz, Michael, Shukla, Shreya
Modular flavor symmetries provide us with a new, promising approach to the flavor problem. However, in their original formulation the kinetic terms of the standard model fields do not have a preferred form, thus introducing additional parameters, whi
Externí odkaz:
http://arxiv.org/abs/2108.02240
Models of physics beyond the Standard Model often contain a large number of parameters. These form a high-dimensional space that is computationally intractable to fully explore. Experimental constraints project onto a subspace of viable parameters, b
Externí odkaz:
http://arxiv.org/abs/2103.06957
Autor:
Mold, Jeff E., Weissman, Martin H., Ratz, Michael, Hagemann-Jensen, Michael, Hård, Joanna, Eriksson, Carl-Johan, Toosi, Hosein, Berghenstråhle, Joseph, Ziegenhain, Christoph, von Berlin, Leonie, Martin, Marcel, Blom, Kim, Lagergren, Jens, Lundeberg, Joakim, Sandberg, Rickard, Michaëlsson, Jakob, Frisén, Jonas
Publikováno v:
In Cell Systems 21 February 2024 15(2):149-165
Autor:
Almumin, Yahya, Chen, Mu-Chun, Knapp-Perez, Victor, Ramos-Sanchez, Saul, Ratz, Michael, Shukla, Shreya
We revisit the flavor symmetries arising from compactifications on tori with magnetic background fluxes. Using Euler's Theorem, we derive closed form analytic expressions for the Yukawa couplings that are valid for arbitrary flux parameters. We discu
Externí odkaz:
http://arxiv.org/abs/2102.11286