Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Müürsepp, Kristjan"'
Autor:
Müürsepp, Kristjan
This conference thesis summarizes my presentation at Tartu Tuorla Cosmology meeting based on a collaborative work with E.Nardi and C.Smarra \cite{Muursepp:2024mbb}. It is well known that a pseudo-Nambu Goldstone boson (pNGB) coupled to a confining ga
Externí odkaz:
http://arxiv.org/abs/2405.20478
A pseudo Nambu-Goldstone boson (PNGB) coupled to a confining gauge group via an anomalous term is characterised, during the confining phase transition, by a temperature dependent mass $m^2(T) \propto T^{-n}$. For $n>2$, a non-relativistic population
Externí odkaz:
http://arxiv.org/abs/2405.00090
Autor:
Lewicki, Marek, Müürsepp, Kristjan, Pata, Joosep, Vasar, Martin, Vaskonen, Ville, Veermäe, Hardi
We study the impact of the ambient fluid on the evolution of collapsing false vacuum bubbles by simulating the dynamics of a coupled bubble-particle system. A significant increase in the mass of the particles across the bubble wall leads to a buildup
Externí odkaz:
http://arxiv.org/abs/2305.07702
Publikováno v:
JHEP 01 (2022) 142
We explore the electroweak vacuum stability in the framework of a recently proposed paradigm for the origin of Yukawa couplings. These arise as low energy effective couplings radiatively generated by portal interactions with a hidden, or dark, sector
Externí odkaz:
http://arxiv.org/abs/2106.09038
Autor:
Criado, Juan Carlos, Djouadi, Abdelhak, Koivunen, Niko, Müürsepp, Kristjan, Raidal, Martti, Veermäe, Hardi
We present an effective field theory of the $\Delta$-resonance as an interacting Weinberg's $(3/2,0)\oplus (0,3/2)$ field in the multi-spinor formalism. We derive its interactions with nucleons $N$, pions $\pi$ and photons $\gamma$, and compute the $
Externí odkaz:
http://arxiv.org/abs/2106.09031
Autor:
Criado, Juan C., Djouadi, Abdelhak, Koivunen, Niko, Müürsepp, Kristjan, Raidal, Martti, Veermäe, Hardi
The new measurement of the muon's anomalous magnetic moment released by the Muon g-2 experiment at Fermilab sets strong constraints on the properties of many new particles. Using an effective field theory approach to the interactions of higher-spin f
Externí odkaz:
http://arxiv.org/abs/2104.03231
Autor:
Anselmi, Damiano, Kannike, Kristjan, Marzo, Carlo, Marzola, Luca, Melis, Aurora, Müürsepp, Kristjan, Piva, Marco, Raidal, Martti
Publikováno v:
Phys. Rev. D 104, 035009 (2021)
Extensions to the Standard Model that use strictly off-shell degrees of freedom - the fakeons - allow for new measurable interactions at energy scales usually precluded by the constraints that target the on-shell propagation of new particles. Here we
Externí odkaz:
http://arxiv.org/abs/2104.03249
Autor:
Anselmi, Damiano, Kannike, Kristjan, Marzo, Carlo, Marzola, Luca, Melis, Aurora, Müürsepp, Kristjan, Piva, Marco, Raidal, Martti
We introduce a new way of modeling the physics beyond the Standard Model by considering fake, strictly off-shell degrees of freedom: the fakeons. To demonstrate the approach and exemplify its reach, we re-analyze the phenomenology of the Inert Double
Externí odkaz:
http://arxiv.org/abs/2104.02071
Publikováno v:
Phys. Rev. D 101, 075019 (2020)
We provide a dynamical mechanism for the generation of the Cabibbo-Kobayashi-Maskawa matrix in the context of a recently proposed model of flavor. The framework, based on the paradigm that Yukawa couplings are effective low energy couplings generated
Externí odkaz:
http://arxiv.org/abs/1912.10461
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