Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Marques-Tavares, Gustavo"'
The presence of a plethora of light spin 0 and spin 1 fields is motivated in a number of BSM scenarios, such as the axiverse. The study of the interactions of such light bosonic fields with the Standard Model has focused mostly on interactions involv
Externí odkaz:
http://arxiv.org/abs/2306.13135
We generalize the recently proposed Stepped Partially Acoustic Dark Matter (SPartAcous) model by including additional massless degrees of freedom in the dark radiation sector. We fit SPartAcous and its generalization against cosmological precision da
Externí odkaz:
http://arxiv.org/abs/2306.01844
Autor:
Diamond, Melissa, Fiorillo, Damiano F. G., Marques-Tavares, Gustavo, Tamborra, Irene, Vitagliano, Edoardo
Publikováno v:
Phys.Rev.Lett. 132 (2024) 10, 101004
The metastable hypermassive neutron star produced in the coalescence of two neutron stars can copiously produce axions that radiatively decay into $\mathcal{O}(100)$~MeV photons. These photons can form a fireball with characteristic temperature small
Externí odkaz:
http://arxiv.org/abs/2305.10327
Publikováno v:
Phys.Rev.D 107 (2023) 10, 103029
New feebly interacting particles would emerge from a supernova core with 100-MeV-range energies and produce $\gamma$-rays by subsequent decays. These would contribute to the diffuse cosmic $\gamma$-ray background or would have shown up in the Solar M
Externí odkaz:
http://arxiv.org/abs/2303.11395
Autor:
Fox, Patrick J., Kribs, Graham D., Murayama, Hitoshi, Aboubrahim, Amin, Agrawal, Prateek, Altmannshofer, Wolfgang, Baer, Howard, Banerjee, Avik, Barger, Vernon, Batell, Brian, Berghaus, Kim V., Berlin, Asher, Blinov, Nikita, Franzosi, Diogo Buarque, Cacciapaglia, Giacomo, Cesarotti, Cari, Craig, Nathaniel, Csáki, Csaba, D'Agnolo, Raffaele Tito, De Vries, Jordy, Deandrea, Aldo, Dolan, Matthew J., Draper, Patrick, Elor, Gilly, Fan, JiJi, Feng, Wan-Zhe, Ferretti, Gabriele, Flacke, Thomas, Fuks, Benjamin, Harigaya, Keisuke, Harz, Julia, Hook, Anson, Ipek, Seyda, Karch, Andreas, Kunkel, Manuel, Lillard, Benjamin, Low, Matthew, Marques-Tavares, Gustavo, Mishra, Rashmish K., Nath, Pran, Neil, Ethan T., Panizzi, Luca, Porod, Werner, Randall, Lisa, Reece, Matthew, Rudelius, Tom, Salam, Shadman, Schwarze, Leonard, Sengupta, Dibyashree, Shakya, Bibhushan, Shelton, Jessie, Sundrum, Raman, Teresi, Daniele, Verhaaren, Christopher B., Wang, Zhu-Yao, Zupan, Jure
We summarize the state of Beyond the Standard Model (BSM) model building in particle physics for Snowmass 2021, focusing mainly on several whitepaper contributions to BSM model building (TF08) and closely related areas.
Comment: 44 pages, 1 figu
Comment: 44 pages, 1 figu
Externí odkaz:
http://arxiv.org/abs/2210.03075
We propose a new interacting dark sector model, Stepped Partially Acoustic Dark Matter (SPartAcous), that can simultaneously address the two most important tensions in current cosmological data, the $H_0$ and $S_8$ problems. As in the Partially Acous
Externí odkaz:
http://arxiv.org/abs/2208.05984
The causal tail of stochastic gravitational waves can be used to probe the energy density in free streaming relativistic species as well as measure $g_\star(T)$ and beta functions $\beta(T)$ as a function of temperature. In the event of the discovery
Externí odkaz:
http://arxiv.org/abs/2203.13842
Autor:
Agrawal, Prateek, Berghaus, Kim V., Fan, JiJi, Hook, Anson, Marques-Tavares, Gustavo, Rudelius, Tom
This white paper collects some open questions in several different aspects of axion theories. The questions are related to quantization of axion couplings, axion-magnetic monopole systems, axions in quantum gravity theory, axion string/domain wall sy
Externí odkaz:
http://arxiv.org/abs/2203.08026
Autor:
Baryakhtar, Masha, Caputo, Regina, Croon, Djuna, Perez, Kerstin, Berti, Emanuele, Bramante, Joseph, Buschmann, Malte, Brito, Richard, Chen, Thomas Y., Cole, Philippa S., Coogan, Adam, East, William E., Foster, Joshua W., Galanis, Marios, Giannotti, Maurizio, Kavanagh, Bradley J., Laha, Ranjan, Leane, Rebecca K., Lehmann, Benjamin V., Marques-Tavares, Gustavo, McDonald, Jamie, Ng, Ken K. Y., Raj, Nirmal, Sagunski, Laura, Sakstein, Jeremy, Sathyaprakash, B. S., Shandera, Sarah, Siemonsen, Nils, Simon, Olivier, Sinha, Kuver, Singh, Divya, Singh, Rajeev, Sun, Chen, Sun, Ling, Takhistov, Volodymyr, Tsai, Yu-Dai, Vitagliano, Edoardo, Vitale, Salvatore, Yang, Huan, Zhang, Jun
Exploring dark matter via observations of extreme astrophysical environments -- defined here as heavy compact objects such as white dwarfs, neutron stars, and black holes, as well as supernovae and compact object merger events -- has been a major fie
Externí odkaz:
http://arxiv.org/abs/2203.07984
In this letter we begin the study of visible dark sector signals coming from binary neutron star mergers. We focus on dark photons emitted in the 10 ms - 1 s after the merger, and show how they can lead to bright transient gamma-ray signals. The sign
Externí odkaz:
http://arxiv.org/abs/2106.03879