Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Bogdan A. Dobrescu"'
Autor:
Elias Bernreuther, Bogdan A. Dobrescu
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 7, Pp 1-24 (2023)
Abstract We study a renormalizable theory that includes a heavy weak-singlet vectorlike lepton, τ ′ , that decays into a pseudoscalar boson and a tau lepton. We show that this can be the dominant decay mode of τ ′ provided the pseudoscalar coup
Externí odkaz:
https://doaj.org/article/2de45a7a4bb34803930dfd52b7fdf701
Autor:
Benoît Assi, Bogdan A. Dobrescu
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-21 (2022)
Abstract Within a chiral SU(15) gauge theory in which the Standard Model fermions are bound states of massless preons, we show that proton-decay operators are likely induced at the compositeness scale, Λpre. Our estimate of the limit imposed by sear
Externí odkaz:
https://doaj.org/article/dc4871b0fd144214a48270bb09991b7a
Autor:
Yang Bai, Bogdan A. Dobrescu
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 4, Pp 1-35 (2018)
Abstract The coloron, a massive version of the gluon present in gauge extensions of QCD, has been searched for at the LHC as a dijet or top quark pair resonance. We point out that in the Renormalizable Coloron Model (ReCoM) with a minimal field conte
Externí odkaz:
https://doaj.org/article/e54f7a47516f416d83798e57ab019eb8
Publikováno v:
Physics Letters B, Vol 738, Iss , Pp 150-154 (2014)
We study a dynamical mechanism that generates a composite vectorlike fermion, formed by the binding of an N-tuplet of elementary chiral fermions to an N-tuplet of scalars. Deriving the properties of the composite fermion in the large N limit, we show
Externí odkaz:
https://doaj.org/article/6972f9dd271c43f78db583b40f698d5f
Autor:
Evgueni Goudzovski, Diego Redigolo, Kohsaku Tobioka, Jure Zupan, Gonzalo Alonso-Álvarez, Daniele S M Alves, Saurabh Bansal, Martin Bauer, Joachim Brod, Veronika Chobanova, Giancarlo D’Ambrosio, Alakabha Datta, Avital Dery, Francesco Dettori, Bogdan A Dobrescu, Babette Döbrich, Daniel Egana-Ugrinovic, Gilly Elor, Miguel Escudero, Marco Fabbrichesi, Bartosz Fornal, Patrick J Fox, Emidio Gabrielli, Li-Sheng Geng, Vladimir V Gligorov, Martin Gorbahn, Stefania Gori, Benjamín Grinstein, Yuval Grossman, Diego Guadagnoli, Samuel Homiller, Matheus Hostert, Kevin J Kelly, Teppei Kitahara, Simon Knapen, Gordan Krnjaic, Andrzej Kupsc, Sandra Kvedaraitė, Gaia Lanfranchi, Danny Marfatia, Jorge Martin Camalich, Diego Martínez Santos, Karim Massri, Patrick Meade, Matthew Moulson, Hajime Nanjo, Matthias Neubert, Maxim Pospelov, Sophie Renner, Stefan Schacht, Marvin Schnubel, Rui-Xiang Shi, Brian Shuve, Tommaso Spadaro, Yotam Soreq, Emmanuel Stamou, Olcyr Sumensari, Michele Tammaro, Jorge Terol-Calvo, Andrea Thamm, Yu-Chen Tung, Dayong Wang, Kei Yamamoto, Robert Ziegler
Publikováno v:
Reports on progress in physics. Physical Society (Great Britain).
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful
Autor:
Bogdan A. Dobrescu
Publikováno v:
Physical Review Letters
In the chiral SU(15) gauge theory presented here, the quarks and leptons are bound states (“prebaryons”) of massless preons. The standard model charges of the preons imply three generations of quarks and leptons, plus some vectorlike fermions lig
Publikováno v:
Physical Review
We construct chiral theories with the smallest number $n_\chi$ of Weyl fermions that form an anomaly-free set under various Abelian gauge groups. For the $U(1)$ group, where $n_\chi = 5$, we show that the general solution to the anomaly equations is
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 10, Pp 1-11 (2017)
European Physical Journal
European Physical Journal
We study models that produce a Higgs boson plus photon ($h^0 \gamma$) resonance at the LHC. When the resonance is a $Z'$ boson, decays to $h^0 \gamma$ occur at one loop. If the $Z'$ boson couples at tree-level to quarks, then the $h^0 \gamma$ branchi
Publikováno v:
Physical Review Letters
The anomaly cancellation equations for the $U(1)$ gauge group can be written as a cubic equation in $n-1$ integer variables, where $n$ is the number of Weyl fermions carrying the $U(1)$ charge. We solve this Diophantine cubic equation by providing a
Autor:
Bogdan A. Dobrescu, Don Lincoln
Publikováno v:
Urknall, Sterne, Schwarze Löcher ISBN: 9783662579121
Viele Beobachtungen im Universum legen nahe, dass es neben der sichtbaren Materie noch eine andere, „dunkle“ Komponente geben musste. Lange waren die Forscher von nur einer Sorte an Teilchenkandidaten dafur ausgegangen: den WIMPs. Doch moglicherw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::770f30e53c63e3211ae44c9f26d75302
https://doi.org/10.1007/978-3-662-57913-8_5
https://doi.org/10.1007/978-3-662-57913-8_5