Zobrazeno 1 - 10
of 2 135
pro vyhledávání: '"hidden sectors"'
We perform a model-independent analysis of the dimension-six terms that are generated in the low energy effective theory when a hidden sector that communicates with the Standard Model (SM) through a specific portal operator is integrated out. We work
Externí odkaz:
http://arxiv.org/abs/2412.15067
Chiral higher-spin gravity is a higher-spin extension of both self-dual Yang-Mills and self-dual gravity and is a unique local higher-spin gravity in four dimensions. Its existence implies that there are two closed subsectors in Chern-Simons matter t
Externí odkaz:
http://arxiv.org/abs/2405.00773
Autor:
Li, Jinzheng, Nath, Pran
Publikováno v:
Published in LHEP-502, 2024
A variety of possibilities exist for dark matter aside from WIMPS, such as hidden sector dark matter. We discuss synchronous thermal evolution of visible and hidden sectors and show that the density of thermal relics can change $O(100\%)$ and $\Delta
Externí odkaz:
http://arxiv.org/abs/2402.04123
Production of gravitational waves in the early universe is discussed in a cosmologically consistent analysis within a first order phase transition involving a hidden sector feebly coupled with the visible sector. Each sector resides in its own heat b
Externí odkaz:
http://arxiv.org/abs/2403.09558
Autor:
Gorbunov, Dmitry, Kalashnikov, Dmitry
We present first estimates of NICA sensitivity to Standard Model extensions with light hypothetical particles singlet under the known gauge transformations. Our analysis reveals that NICA can explore new regions in the parameter spaces of models with
Externí odkaz:
http://arxiv.org/abs/2401.12893
Publikováno v:
JCAP06(2024)073
Hot viscous plasmas unavoidably emit a gravitational wave background, similar to electromagnetic black body radiation. We study the contribution from hidden particles to the diffuse background emitted by the primordial plasma in the early universe. W
Externí odkaz:
http://arxiv.org/abs/2312.13855
Autor:
Musumeci, E., Irles, A., Perez-Ramos, R., Corredoira, I., Sarkisyan-Grinbaum, E., Mitsou, V. A., Sanchis-Lozano, M. A.
Future $e^+e^-$ colliders are called to play a fundamental role in measuring Standard Model (SM) parameters with unprecedented precision and the discovery of physics beyond the SM (BSM). This study focus on a QCD-like Hidden Valley (HV) scenario, wit
Externí odkaz:
http://arxiv.org/abs/2312.06526
Autor:
Cogollo, D., Neves, M. J., de Melo, Tessio B., de Jesus, Alvaro S., Oviedo-Torres, Y. M., Queiroz, F. S.
The charged Kaon meson ($K^+$) features several hadronic decay modes, but the most relevant contribution to its decay width stems from the leptonic decay $K^+ \rightarrow \mu^+ \nu_\mu $. Given the precision acquired on the rare decay mode $K^+ \righ
Externí odkaz:
http://arxiv.org/abs/2310.19959
Autor:
Sieber, H., Kirpichnikov, D. V., Voronchikhin, I. V., Crivelli, P., Gninenko, S. N., Kirsanov, M. M., Krasnikov, N. V., Molina-Bueno, L., Sekatskii, S. K.
In addition to vector ($V$) type new particles extensively discussed previously, both CP-even ($S$) and CP-odd ($P$) spin-0 Dark Matter (DM) mediators can couple to muons and be produced in the bremsstrahlung reaction $\mu^- + N \rightarrow \mu^- + N
Externí odkaz:
http://arxiv.org/abs/2305.09015
Autor:
Pran Nath, Jinzheng Li
Publikováno v:
Letters in High Energy Physics, Vol 2024, Iss 1 (2024)
A variety of possibilities exist for dark matter aside from WIMPS, such as hidden sector dark matter. We discuss the synchronous thermal evolution of visible and hidden sectors and show that the density of thermal relics can change O(100%) and ∆Nef
Externí odkaz:
https://doaj.org/article/1444460a98f14e65938d2acaa9fd7e20