Zobrazeno 1 - 10
of 357
pro vyhledávání: '"Fuller, George M"'
Autor:
Suliga, Anna M., Cheong, Patrick Chi-Kit, Froustey, Julien, Fuller, George M., Gráf, Lukáš, Kehrer, Kyle, Scholer, Oliver, Shalgar, Shashank
We show that strong interactions violating the conservation of lepton numbers in the neutrino sector could significantly alter the standard low entropy picture for the pre-supernova collapsing core of a massive star. A rapid neutrino-antineutrino equ
Externí odkaz:
http://arxiv.org/abs/2410.01080
Autor:
Kehrer, Kyle S., Fuller, George M.
Publikováno v:
Phys. Rev. D 110, 083035, 2024
We calculate the extent to which collisionless dark matter impacts the stability of supermassive stars $(M\gtrsim10^4\,M_\odot)$. We find that, depending on the star's mass, a dark matter content in excess of ${\sim}1\%$ by mass throughout the entire
Externí odkaz:
http://arxiv.org/abs/2406.13887
Publikováno v:
JCAP 09 (2024) 014
Very different processes characterize the decoupling of neutrinos to form the cosmic neutrino background (C$\nu$B) and the much later decoupling of photons from thermal equilibrium to form the cosmic microwave background (CMB). The C$\nu$B emerges fr
Externí odkaz:
http://arxiv.org/abs/2403.19038
We present a mechanism for producing a cosmologically-significant relic density of one or more sterile neutrinos. This scheme invokes two steps: First, a population of "heavy" sterile neutrinos is created by scattering-induced decoherence of active n
Externí odkaz:
http://arxiv.org/abs/2402.13878
Probing self-interacting sterile neutrino dark matter with the diffuse supernova neutrino background
Publikováno v:
Phys. Rev. D 108, 123011 (2023)
The neutrinos in the diffuse supernova neutrino background (DSNB) travel over cosmological distances and this provides them with an excellent opportunity to interact with dark relics. We show that a cosmologically-significant relic population of keV-
Externí odkaz:
http://arxiv.org/abs/2310.07145
Autor:
Grohs, Evan, Fuller, George M.
As the early universe expands and cools the rates of the weak interactions that keep neutrinos in thermal equilibrium with the matter and the related rates of the reactions that inter-convert neutrons and protons decrease. Eventually, these rates fal
Externí odkaz:
http://arxiv.org/abs/2301.12299
Publikováno v:
Phys. Rev. Lett. 130 (2023) 22, 221002
Beyond Standard Model extensions of QCD could result in quark and gluon confinement occurring well above a temperature of $\sim$GeV. These models can also alter the order of the QCD phase transition. The enhanced production of primordial black holes
Externí odkaz:
http://arxiv.org/abs/2212.00156
Autor:
Collaboration, The CMB-HD, Aiola, Simone, Akrami, Yashar, Basu, Kaustuv, Boylan-Kolchin, Michael, Brinckmann, Thejs, Bryan, Sean, Casey, Caitlin M., Chluba, Jens, Clesse, Sebastien, Cyr-Racine, Francis-Yan, Di Mascolo, Luca, Dicker, Simon, Essinger-Hileman, Thomas, Farren, Gerrit S., Fedderke, Michael A., Ferraro, Simone, Fuller, George M., Galitzki, Nicholas, Gluscevic, Vera, Grin, Daniel, Han, Dongwon, Hasselfield, Matthew, Hlozek, Renee, Holder, Gil, Hotinli, Selim C., Jain, Bhuvnesh, Johnson, Bradley, Johnson, Matthew, Klaassen, Pamela, MacInnis, Amanda, Madhavacheril, Mathew, Mandal, Sayan, Mauskopf, Philip, Meerburg, Daan, Meyers, Joel, Miranda, Vivian, Mroczkowski, Tony, Mukherjee, Suvodip, Munchmeyer, Moritz, Munoz, Julian, Naess, Sigurd, Nagai, Daisuke, Namikawa, Toshiya, Newburgh, Laura, Nguyen, Ho Nam, Niemack, Michael, Oppenheimer, Benjamin D., Pierpaoli, Elena, Raghunathan, Srinivasan, Schaan, Emmanuel, Sehgal, Neelima, Sherwin, Blake, Simon, Sara M., Slosar, Anze, Smith, Kendrick, Spergel, David, Switzer, Eric R., Trivedi, Pranjal, Tsai, Yu-Dai, van Engelen, Alexander, Wandelt, Benjamin D., Wollack, Edward J., Wu, Kimmy
CMB-HD is a proposed millimeter-wave survey over half the sky that would be ultra-deep (0.5 uK-arcmin) and have unprecedented resolution (15 arcseconds at 150 GHz). Such a survey would answer many outstanding questions about the fundamental physics o
Externí odkaz:
http://arxiv.org/abs/2203.05728
Publikováno v:
Phys. Rev. C 105, 105801 (2022)
Weak interaction charged current transition strengths from highly excited nuclear states are fundamental ingredients for accurate modeling of compact object composition and dynamics, but are difficult to obtain either from experiment or theory. For l
Externí odkaz:
http://arxiv.org/abs/2111.06242
The hot and dense early Universe combined with the promise of high-precision cosmological observations provide an intriguing laboratory for Beyond Standard Model (BSM) physics. We simulate the early Universe to examine the effects of the decay of the
Externí odkaz:
http://arxiv.org/abs/2109.11176