Zobrazeno 1 - 10
of 1 188
pro vyhledávání: '"DUTTA, BHASKAR"'
We construct explicit models that solve the axion quality problem originating from quantum gravitational effects. The general strategy we employ is to supplement the Standard Model and its grand unified extensions by an anomaly-free axial $U(1)_a$ sy
Externí odkaz:
http://arxiv.org/abs/2412.21157
We explore the potential of gravitational waves (GWs) to probe the pre-BBN era of the early universe, focusing on the effects of energy injection. Specifically, we examine a hidden sector alongside the Standard Model that undergoes a strong first-ord
Externí odkaz:
http://arxiv.org/abs/2411.09757
ATOMKI nuclear anomaly has suggested a new BSM (Beyond the Standard Model) boson with mass $\sim17$ MeV emitted from excited nuclei and quickly decays into a pair of $e^+e^-$. In order to search for the new particle, we propose a new approach that ut
Externí odkaz:
http://arxiv.org/abs/2410.17968
Autor:
Capozzi, Francesco, Dutta, Bhaskar, Gurung, Gajendra, Jang, Wooyoung, Shoemaker, Ian M., Thompson, Adrian, Yu, Jaehoon
New gauge bosons coupled to heavy neutral leptons (HNLs) are simple and well-motivated extensions of the Standard Model. In searches for HNLs in proton fixed-target experiments, we find that a large population of gauge bosons ($Z^\prime$) produced by
Externí odkaz:
http://arxiv.org/abs/2410.08981
We propose a novel mechanism, dark matter internal pair production (DIPP), to detect dark matter candidates at beam dump facilities. When energetic dark matter scatters in a material, it can create a lepton-antilepton pair by exchanging a virtual pho
Externí odkaz:
http://arxiv.org/abs/2410.07624
Invisible axion models that solve the strong CP problem via the Peccei-Quinn (PQ) mechanism typically have a quality problem that arises from quantum gravity effects which violate all global symmetries. These models therefore require extreme fine-tun
Externí odkaz:
http://arxiv.org/abs/2410.07323
Autor:
Agashe, Kaustubh, Buen-Abad, Manuel, Chang, Jae Hyeok, Clark, Steven J., Dutta, Bhaskar, Tsai, Yuhsin, Xu, Tao
We consider the possibility of indirect detection of dark sector processes by investigating a novel form of interaction between ambient dark matter (DM) and primordial black holes (PBHs). The basic scenario we envisage is that the ambient DM is ``dor
Externí odkaz:
http://arxiv.org/abs/2409.13811
Autor:
Boddy, Kimberly K., Dutta, Bhaskar, Evans, Addy J., Huang, Wei-Chih, Moltner, Stacie, Strigari, Louis E.
We consider the nuclear absorption of dark matter as an alternative to the typical indirect detection search channels of dark matter decay or annihilation. In this scenario, an atomic nucleus transitions to an excited state by absorbing a pseudoscala
Externí odkaz:
http://arxiv.org/abs/2404.17418
Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes (PBHs), which themselves are candidates for dark matter (DM) over a wide mass range. Using axion-like particles (ALPs) as an example, we show
Externí odkaz:
http://arxiv.org/abs/2404.02956
Autor:
Gori, Stefania, Tran, Nhan, DiPetrillo, Karri, Echenard, Bertrand, Eldred, Jeffrey, Harnik, Roni, Machado, Pedro, Toups, Matthew, Bernstein, Robert, Bigaran, Innes, Cesarotti, Cari, Dutta, Bhaskar, Herwig, Christian, Jindariani, Sergo, Plestid, Ryan, Shiltsev, Vladimir, Solt, Matthew, Sousa, Alexandre, Stratakis, Diktys, Tabrizi, Zahra, Thapa, Anil, Zettlemoyer, Jacob, Zupan, Jure
We summarize the Fermilab Accelerator Complex Evolution (ACE) Science Workshop, held on June 14-15, 2023. The workshop presented the strategy for the ACE program in two phases: ACE Main Injector Ramp and Target (MIRT) upgrade and ACE Booster Replacem
Externí odkaz:
http://arxiv.org/abs/2403.02422