Zobrazeno 1 - 10
of 94
pro vyhledávání: '"O'Hare, Ciaran A. J."'
Autor:
Lisotti, Chiara, O'Hare, Ciaran A. J., Baracchini, Elisabetta, Bashu, Victoria U., Bignell, Lindsey J., Dastgiri, Ferdos, Ghrear, Majd, Lane, Gregory J., McKie, Lachlan J., McNamara, Peter C., Torelli, Samuele
Publikováno v:
Eur. Phys. J. C, 84 10 (2024) 1021
CYGNUS is a proposed global network of large-scale gas time projection chambers (TPCs) with the capability of directionally detecting nuclear and electron recoils at $\gtrsim$keV energies. The primary focus of CYGNUS so far has been the detection of
Externí odkaz:
http://arxiv.org/abs/2404.03690
Autor:
O'Hare, Ciaran A. J.
Publikováno v:
PoS COSMICWISPers (2024) 040
I present an introduction and topical review on axions as a dark matter candidate. Emphasis is placed on issues surrounding the cosmology of axion dark matter that are relevant for present-day searches, including: early-Universe production mechanisms
Externí odkaz:
http://arxiv.org/abs/2403.17697
Publikováno v:
Phys. Rev. D 109, 083016 (2024)
The search for sub-GeV dark matter via scattering on electrons has ramped up in the last few years. Like in the case of dark matter scattering on nuclei, electron-recoil-based searches also face an ultimate background in the form of neutrinos. The so
Externí odkaz:
http://arxiv.org/abs/2312.04303
Publikováno v:
Phys. Rev. Lett. 133, 081001 (2024)
A consequence of QCD axion dark matter being born after inflation is the emergence of small-scale substructures known as miniclusters. Although miniclusters merge to form minihalos, this intrinsic granularity is expected to remain imprinted on small
Externí odkaz:
http://arxiv.org/abs/2311.17367
A growing number of Milky Way globular clusters have been identified to possess a noticeable degree of solid-body rotation. For several clusters, the combination of stellar proper motions and radial velocities allows for 3-dimensional spin axes to be
Externí odkaz:
http://arxiv.org/abs/2306.11276
Autor:
Eggemeier, Benedikt, O'Hare, Ciaran A. J., Pierobon, Giovanni, Redondo, Javier, Wong, Yvonne Y. Y.
In the scenario in which QCD axion dark matter is produced after inflation, the Universe is populated by large inhomogeneities on very small scales. Eventually, these fluctuations will collapse gravitationally to form dense axion miniclusters that tr
Externí odkaz:
http://arxiv.org/abs/2212.00560
Autor:
Cooley, Jodi, Lin, Tongyan, Lippincott, W. Hugh, Slatyer, Tracy R., Yu, Tien-Tien, Akerib, Daniel S., Aramaki, Tsuguo, Baxter, Daniel, Bringmann, Torsten, Bunker, Ray, Carney, Daniel, Cebrián, Susana, Chen, Thomas Y., Cushman, Priscilla, Dahl, C. E., Essig, Rouven, Fan, Alden, Gaitskell, Richard, Galbiati, Cristano, Gelmini, Graciela B., Giovanetti, Graham K., Giroux, Guillaume, Grandi, Luca, Harding, J. Patrick, Haselschwardt, Scott, Hsu, Lauren, Horiuchi, Shunsaku, Kahn, Yonatan, Kim, Doojin, Kim, Geon-Bo, Kravitz, Scott, Kudryavtsev, V. A., Kurinsky, Noah, Lang, Rafael F., Leane, Rebecca K., Lehmann, Benjamin V., Levy, Cecilia, Li, Shengchao, Loer, Ben, Manalaysay, Aaron, Martoff, C. J, Mohlabeng, Gopolang, Monzani, M. E., Murphy, Alexander St J., Neilson, Russell, Nelson, Harry N., O'Hare, Ciaran A. J., Palladino, K. J., Parikh, Aditya, Park, Jong-Chul, Perez, Kerstin, Profumo, Stefano, Raj, Nirmal, Roach, Brandon M., Saab, Tarek, Sarsa, Maria Luísa, Schnee, Richard, Shaw, Sally, Shin, Seodong, Sinha, Kuver, Stifter, Kelly, Suzuki, Aritoki, Szydagis, M., Tait, Tim M. P., Takhistov, Volodymyr, Tsai, Yu-Dai, Vahsen, S. E., Vitagliano, Edoardo, von Doetinchem, Philip, Wang, Gensheng, Westerdale, Shawn, Williams, David A., Xiang, Xin, Yang, Liang
This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which was focused on particle dark matter. One of the most important scientific goals of the next decade is to reveal the nature of dark matter (DM). To accomplish this
Externí odkaz:
http://arxiv.org/abs/2209.07426
Publikováno v:
Phys. Rev. D 105, 055025 (2022)
Axions and axion-like particles (ALPs) are some of the most popular candidates for dark matter, with several viable production scenarios that make different predictions. In the scenario in which the axion is born after inflation, its field develops s
Externí odkaz:
http://arxiv.org/abs/2112.05117
Cosmology of the companion-axion model: dark matter, gravitational waves, and primordial black holes
Autor:
Chen, Zhe, Kobakhidze, Archil, O'Hare, Ciaran A. J., Picker, Zachary S. C., Pierobon, Giovanni
The companion-axion model introduces a second QCD axion to rescue the Peccei-Quinn solution to the strong-CP problem from the effects of colored gravitational instantons. As in single-axion models, the two axions predicted by the companion-axion mode
Externí odkaz:
http://arxiv.org/abs/2110.11014
Autor:
Chen, Zhe, Kobakhidze, Archil, O'Hare, Ciaran A. J., Picker, Zachary S. C., Pierobon, Giovanni
Publikováno v:
Eur.Phys.J.C 82 (2022) 10, 940
We study the phenomenology of the 'companion-axion model' consisting of two coupled QCD axions. The second axion is required to rescue the Peccei-Quinn solution to the strong-CP problem from the effects of colored gravitational instantons. We investi
Externí odkaz:
http://arxiv.org/abs/2109.12920