Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Gavela, Belen"'
We compute the one-loop contribution to the $\bar{\theta}$-parameter of an axion-like particle (ALP) with CP-odd derivative couplings. Its contribution to the neutron electric dipole moment is shown to be orders of magnitude larger than that stemming
Externí odkaz:
http://arxiv.org/abs/2403.12133
We demonstrate that the true QCD axion that solves the strong CP problem can be found in all generality outside the customary standard QCD band, with QCD being the sole source of Peccei-Quinn breaking. The essential reason is that the basis of axion-
Externí odkaz:
http://arxiv.org/abs/2305.15465
Exact discrete symmetries, if non-linearly realized, can reduce the ultraviolet sensitivity of a given theory. The scalars stemming from spontaneous symmetry breaking are massive without breaking the discrete symmetry, and those masses are protected
Externí odkaz:
http://arxiv.org/abs/2303.13600
Publikováno v:
Phys. Rev. D 107, 035009 (2023)
Exact discrete symmetries, if non-linearly realized, can reduce the ultraviolet sensitivity of a given theory. The scalars stemming from spontaneous symmetry breaking are massive without breaking the discrete symmetry, and those masses are protected
Externí odkaz:
http://arxiv.org/abs/2205.09131
We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The $Z_\mathcal{N}$ symmetry proposed by Hook, with $\mathcal{N}$ mirror and degenerate worlds coexisting in Nature and linked
Externí odkaz:
http://arxiv.org/abs/2111.03149
Publikováno v:
JCAP 10 (2021) 001
We show that dark matter can be accounted for by an axion that solves the strong CP problem, but is much lighter than usual due to a $Z_\mathcal{N}$ symmetry. The whole mass range from the canonical QCD axion down to the ultra-light regime is allowed
Externí odkaz:
http://arxiv.org/abs/2102.01082
We explore whether the axion which solves the strong CP problem can naturally be much lighter than the canonical QCD axion. The $Z_\mathcal{N}$ symmetry proposed by Hook, with $\mathcal{N}$ mirror and degenerate worlds coexisting in Nature and linked
Externí odkaz:
http://arxiv.org/abs/2102.00012
Akademický článek
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Autor:
Feruglio, Ferruccio, Gavela, Belen, Kanshin, Kirill, Machado, Pedro Accioly Nogueira, Rigolin, Stefano, Saa, Sara
In the context of the minimal SO(5) linear {\sigma}-model, a complete renormalizable Lagrangian -including gauge bosons and fermions- is considered, with the symmetry softly broken to SO(4). The scalar sector describes both the electroweak Higgs doub
Externí odkaz:
http://arxiv.org/abs/1603.05668
Autor:
Alekhin, Sergey, Altmannshofer, Wolfgang, Asaka, Takehiko, Batell, Brian, Bezrukov, Fedor, Bondarenko, Kyrylo, Boyarsky, Alexey, Craig, Nathaniel, Choi, Ki-Young, Corral, Cristóbal, Curtin, David, Davidson, Sacha, de Gouvêa, André, Dell'Oro, Stefano, deNiverville, Patrick, Dev, P. S. Bhupal, Dreiner, Herbi, Drewes, Marco, Eijima, Shintaro, Essig, Rouven, Fradette, Anthony, Garbrecht, Björn, Gavela, Belen, Giudice, Gian F., Gorbunov, Dmitry, Gori, Stefania, Grojean, Christophe, Goodsell, Mark D., Guffanti, Alberto, Hambye, Thomas, Hansen, Steen H., Helo, Juan Carlos, Hernandez, Pilar, Ibarra, Alejandro, Ivashko, Artem, Izaguirre, Eder, Jaeckel, Joerg, Jeong, Yu Seon, Kahlhoefer, Felix, Kahn, Yonatan, Katz, Andrey, Kim, Choong Sun, Kovalenko, Sergey, Krnjaic, Gordan, Lyubovitskij, Valery E., Marcocci, Simone, Mccullough, Matthew, McKeen, David, Mitselmakher, Guenakh, Moch, Sven-Olaf, Mohapatra, Rabindra N., Morrissey, David E., Ovchynnikov, Maksym, Paschos, Emmanuel, Pilaftsis, Apostolos, Pospelov, Maxim, Reno, Mary Hall, Ringwald, Andreas, Ritz, Adam, Roszkowski, Leszek, Rubakov, Valery, Ruchayskiy, Oleg, Shelton, Jessie, Schienbein, Ingo, Schmeier, Daniel, Schmidt-Hoberg, Kai, Schwaller, Pedro, Senjanovic, Goran, Seto, Osamu, Shaposhnikov, Mikhail, Shuve, Brian, Shrock, Robert, Shchutska, Lesya, Spannowsky, Michael, Spray, Andy, Staub, Florian, Stolarski, Daniel, Strassler, Matt, Tello, Vladimir, Tramontano, Francesco, Tripathi, Anurag, Tulin, Sean, Vissani, Francesco, Winkler, Martin W., Zurek, Kathryn M.
Publikováno v:
Rep. Prog. Phys. 79 (2016) 124201
This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (Search for Hidden Particles) experiment is intended to hunt for new physics in the largely unexplored domain of very weakly interacting particles with masses
Externí odkaz:
http://arxiv.org/abs/1504.04855