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39 results on '"Cheek, Andrew"'

1. Gemini Dark Matter

Author

Cheek, Andrew, Qiu, Yu-Cheng, and Tan, Liang

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The $S_8/\sigma_8$ tension in the large scale structure can be explained by decaying dark matter with an almost degenerate spectrum and small enough decay width. Here we propose the Gemini dark matter model, which contains a heavy mother particle $\chi_3$ and two twins $\chi_{1/2}$ which are almost degenerate in mass and are produced at the same time. The dark sector is charged under the same Froggatt-Nielsen symmetry that can explain the hierarchy of the Standard model Yukawa couplings. The slightly heavier $\chi_2$ decays into $\chi_1$ and the axionic component of the flavon, which washes out the small scale structure and resolves $S_8/\sigma_8$ tension. We present the production mechanism of Gemini dark matter and viable parameter regions. We find that despite the preferred dark matter mass being $\mathcal{O}(1)$--$\mathcal{O}(100)$ keV, they constitute cold dark matter. The Gemini dark matter model predicts an abundance of dark radiation that will be probed in future measurements of the cosmic microwave background., Comment: This version matches the PRD accepted version. 3 footnotes and refs added. 11 pages, 4 figures, and 2 tables

Published
2024

2. Primordial Black Holes Are True Vacuum Nurseries

Author

Hamaide, Louis, Heurtier, Lucien, Hu, Shi-Qian, and Cheek, Andrew

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Theory
Abstract

The Hawking evaporation of primordial black holes (PBH) reheats the Universe locally, forming hot spots that survive throughout their lifetime. We propose to use the temperature profile of such hot spots to calculate the decay rate of metastable vacua in cosmology, avoiding inconsistencies inherent to the Hartle-Hawking or Unruh vacuum. We apply our formalism to the case of the electroweak vacuum stability and find that a PBH energy fraction $\beta > 7\times 10^{-80} (M/g)^{3/2}$ is ruled out for black holes with masses $0.8 g < M < 10^{15} g$., Comment: 7 pages, 3 figures. Prepared for submission to PRL

Published
2023
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3. Extending preferred axion models via heavy-quark induced early matter domination

Author

Cheek, Andrew, Osiński, Jacek K., and Roszkowski, Leszek

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We examine the cosmological consequences of the heavy quarks in KSVZ-type axion models. We find that their presence often causes an early matter domination phase, altering the evolution of the Universe. This extends the axion mass into the region where standard cosmology leads to overproduction, and allows for a greater number of axion models with non-renormalizable terms to be viable. Quantitatively, we find that decays proceeding through effective terms of up to dimension 9 ($d=9$) remain consistent with cosmological constraints, in contrast with the result $d\leq5$ previously found in the literature. As a consequence, the heavy quarks can be much heavier and the axion mass window with the correct relic density for dark matter is extended by orders of magnitude, down to $m_a\approx 6\times 10^{-9} \,{\rm eV}$. This is achieved without resorting to fine-tuning of the initial misalignment angle, bolstering the motivation for many future axion haloscope experiments. Additionally, we explore how these models can be probed through measurements of the number of relativistic degrees of freedom at recombination., Comment: 24 pages, 6 figures

Published
2023

4. A Direct Detection View of the Neutrino NSI Landscape

Author

Amaral, Dorian W. P., Cerdeno, David, Cheek, Andrew, and Foldenauer, Patrick

Subjects
High Energy Physics - Phenomenology
Abstract

In this article, we study the potential of direct detection experiments to explore the parameter space of general non-standard neutrino interactions (NSI) via solar neutrino scattering. Due to their sensitivity to neutrino-electron and neutrino-nucleus scattering, direct detection provides a complementary view of the NSI landscape to that of spallation sources and neutrino oscillation experiments. In particular, the large admixture of tau neutrinos in the solar flux makes direct detection experiments well-suited to probe the full flavour space of NSI. To study this, we develop a re-parametrisation of the NSI framework that explicitly includes a variable electron contribution and allows for a clear visualisation of the complementarity of the different experimental sources. Using this new parametrisation, we explore how previous bounds from spallation source and neutrino oscillation experiments are impacted. For the first time, we compute limits on NSI from the first results of the XENONnT and LUX-ZEPLIN experiments, and we obtain projections for future xenon-based experiments. These computations have been performed with our newly developed software package, SNuDD. Our results demonstrate the importance of using a more general NSI parametrisation and indicate that next generation direct detection experiments will become powerful probes of neutrino NSI., Comment: 40 pages, 7 figures, 2 appendices

Published
2023
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5. Isospin-violating dark matter at liquid noble detectors: new constraints, future projections, and an exploration of target complementarity

Author

Cheek, Andrew, Price, Darren D., and Sandford, Ellen M.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

There is no known reason that dark matter interactions with the Standard Model should couple to neutrons and protons in the same way. This isospin violation can have large consequences, modifying the sensitivity of existing and future direct detection experimental constraints by orders of magnitude. Previous works in the literature have focused on the zero-momentum limit which has its limitations when extending the analysis to the Non-Relativistic Effective Field Theory basis (NREFT). In this paper, we study isospin violation in a detailed manner, paying specific attention to the experimental setups of liquid noble detectors. We analyse two effective Standard Model gauge invariant models as interesting case studies as well as the more model-independent NREFT operators. This work demonstrates the high degree of complementarity between the target nuclei xenon and argon. Most notably, we show that the Standard Model gauge-invariant formulation of the standard spin-dependent interaction often generates a sizeable response from argon, a target nuclei with zero spin. This work is meant as an update and a useful reference to model builders and experimentalists., Comment: 22 pages in total, 13 figures, 1 table, 3 appendices. Data from the main results of this paper is available at https://doi.org/10.1140/epjc/s10052-023-11826-y

Published
2023
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6. Evaporation of Primordial Black Holes in the Early Universe: Mass and Spin Distributions

Author

Cheek, Andrew, Heurtier, Lucien, Perez-Gonzalez, Yuber F., and Turner, Jessica

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Many cosmological phenomena lead to the production of primordial black holes in the early Universe. These phenomena often create a population of black holes with extended mass and spin distributions. As these black holes evaporate via Hawking radiation, they can modify various cosmological observables, lead to the production of dark matter, modify the number of effective relativistic degrees of freedom, $N_{\rm eff}$, source a stochastic gravitational wave background and alter the dynamics of baryogenesis. We consider the Hawking evaporation of primordial black holes that feature non-trivial mass and spin distributions in the early Universe. We demonstrate that the shape of such a distribution can strongly affect most of the aforementioned cosmological observables. We outline the numerical machinery we use to undertake this task. We also release a new version of FRISBHEE that handles the evaporation of primordial black holes with an arbitrary mass and spin distribution throughout cosmic history., Comment: 16 pages, 6 figures. Numerical codes released in https://github.com/yfperezg/frisbhee . Added clarifying comments. Matches published version

Published
2022
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7. Dark matter production through a non-thermal flavon portal

Author

Cheek, Andrew, Osiński, Jacek K., Roszkowski, Leszek, and Trojanowski, Sebastian

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Froggatt-Nielsen (FN) mechanism provides an attractive way of generating the determined fermion mass hierarchy and quark mixing matrix elements in the Standard Model (SM). Here we extend it by coupling the FN field, the flavon, to a dark sector containing one or more dark matter particles which are produced non-thermally sequentially through flavon production. Non-thermal flavon production occurs efficiently via freeze-in and through field oscillations. We explore this in the regime of high-scale breaking $\Lambda$ of the global $U(1)_{\textrm{FN}}$ group and at the reheating temperature $T_R\ll \Lambda$ where the flavon remains out of equilibrium at all times. We identify phenomenologically acceptable regions of $T_R$ and the flavon mass where the relic abundance of dark matter and other cosmological constraints are satisfied. In the case of one-component dark matter we find an effective upper limit on the FN charges at high $\Lambda$, i.e. $Q_{\rm FN}^{\rm DM}\leq13$. In the multi-component dark sector scenario the dark matter can be the heaviest dark particle that can be effectively stable at cosmological timescales, alternatively it can be produced sequentially by decays of the heavier ones. For scenarios where dark decays occur at intermediate timescales, i.e. $t\sim 0.1- 10^{28}\,{\rm s}$, we find that existing searches can effectively probe interesting regions of parameter space. These searches include indirect probes on decays such as $\gamma$-ray and neutrino telescopes as well as analyses of the Cosmic Microwave Background, as well as constraints on small scale structure formation from the Lyman-$\alpha$ forest. We comment on the future prospects of such probes, place projected sensitivities, and discuss how this scenario could accommodate the cosmological $S_8$ tension., Comment: 21 pages, 4 figures. Additional appendices and discussion. Matches published version

Published
2022
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8. Redshift Effects in Particle Production from Kerr Primordial Black Holes

Author

Cheek, Andrew, Heurtier, Lucien, Perez-Gonzalez, Yuber F., and Turner, Jessica

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology
Abstract

When rotating primordial black holes evaporate via Hawking radiation, their rotational energy and mass are dissipated with different dynamics. We investigate the effect of these dynamics on the production of dark radiation -- in the form of hot gravitons or vector bosons -- and non-cold dark matter. Although the production of higher-spin particles is enhanced while primordial black holes are rotating, we show that the energy density of dark radiation experiences an extra redshift because their emission effectively halts before PBH evaporation completes. We find that taking this effect into account leads to suppression by a factor of $\mathcal{O}(10)$ of $\Delta N_{\rm eff}$ for maximally rotating black holes as compared to previous results. Using the solution of the Friedmann and Boltzmann equations to accurately calculate the evolution of linear perturbations, we revisit the warm dark matter constraints for light candidates produced by evaporation and how these limits vary over black hole spins. Due to the interplay of enhanced production and late dilution, we obtain that higher spin particles are most affected by these bounds. Our code FRISBHEE, FRIedmann Solver for Black Hole Evaporation in the Early universe, developed for this work can be found at https://github.com/yfperezg/frisbhee, Comment: 12 pages, 7 figures. Added clarifying comments, matches published version

Published
2022
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9. TENAYA and LUCERNE: Two-Year Results from the Phase 3 Neovascular Age-Related Macular Degeneration Trials of Faricimab with Treat-and-Extend Dosing in Year 2

Author

Abbey, Ashkan, Abdulaeva, Elmira, Abraham, Prema, Adan Civera, Alfredo, Agostini, Hansjurgen, Alezzandrini, Arturo, Alfaro, Virgil, Almony, Arghavan, Altay, Lebriz, Amini, Payam, Antoszyk, Andrew, Aradi, Etelka, Arias, Luis, Arnold, Jennifer, Asaria, Riaz, Astakhov, Sergei, Astakhov, Yury, Awh, Carl C., Balaratnasingam, Chandra, Banerjee, Sanjiv, Baumal, Caroline, Becker, Matthias, Belfort, Rubens, Jr., Bratko, Galina, Bridges, William Z., Jr., Brown, Jamin, Brown, David M., Budzinskaya, Maria, Buffet, Sylvia, Burgess, Stuart, Byon, Iksoo, Cagini, Carlo, Calzada, Jorge, Cameron, Stone, Campochiaro, Peter, Carlson, John, Carneiro, Angela, Chan, Clement, Chang, Emmanuel, Chang, Andrew, Chao, Daniel, Chaudhry, Nauman, Chee, Caroline, Cheek, Andrew, Chen, Shih-Jen, Chen, San-Ni, Cheung, Gemmy, Chexal, Saradha, Chittum, Mark, Chow, David, Cole, Abosede, Connolly, Brian, Cornut, Pierre Loic, Couvillion, Stephen, Danzig, Carl, Daskalov, Vesselin, Dessouki, Amr, Devin, Francois, Dollin, Michael, Dolz, Rosa, Downey, Louise, Dreyer, Richard, Dugel, Pravin, Eichenbaum, David, Eldem, Bora, Engstrom, Robert, Escobar, Joan Josep, Eter, Nicole, Faber, David W., Falk, Naomi, Feiner, Leonard, Vega, Alvaro Fernandez, Ferrone, Philip, Figueroa, Marta, Fine, Howard, Fineman, Mitchell, Fox, Gregory M., Francais, Catherine, Franco, Pablo, Fraser-Bell, Samantha, Fung, Nicholas, Sola, Federico Furno, Gale, Richard, Garcia-Layana, Alfredo, Gasperini, Julie, Gawecki, Maciej, Ghanchi, Faruque, Gill, Manjot, Giunta, Michel, Glaser, David, Goldstein, Michaella, Ulla, Francisco Gomez, Gomi, Fumi, Gonzalez, Victor, Graff, Jordan, Gupta, Sunil, Guthoff, Rainer, Guymer, Robyn, Haas, Anton, Hampton, Robert, Hatz, Katja, Hayashi, Ken, Heier, Jeffrey, Herba, Ewa, Hershberger, Vrinda, Higgins, Patrick, Holekamp, Nancy, Honda, Shigeru, Howard, James, Hu, Allen, Huddleston, Stephen, Iida, Tomohiro, Imaizumi, Hiroko, Ito, Yasuo, Ito, Yasuki, Itty, Sujit, Javey, Golnaz, Javid, Cameron, Kaga, Tatsushi, Kaluzny, Jakub, Kang, Se Woong, Kapoor, Kapil, Karabas, Levent, Kawasaki, Tsutomu, Kelty, Patrick, Kerenyi, Agnes, Khanani, Arshad, Khoramnia, Ramin, Khurana, Rahul, Kimura, Kazuhiro, Klein-Mascia, Kendra, Kobayashi, Namie, Kodjikian, Laurent, Koizumi, Hideki, Kokame, Gregg, Kulikov, Alexey, Kwong, Henry, Kwun, Robert, Lai, Timothy, Lai, Chi-Chun, Lalonde, Laurent, Lanzetta, Paolo, Larsen, Michael, Lavina, Adrian, Lee, Won Ki, Lee, ji Eun, Lee, Seong, Levy, Jaime, Lindsell, Lucas, Liu, Mimi, London, Nikolas, Lotery, Andrew, Lozano Rechy, David, Luckie, Alan, Maberley, David, Maeno, Takatoshi, Mahmood, Sajjad, Makkouk, Fuad, Marcus, Dennis, Margherio, Alan, Masse, Helene, Matsubara, Hisashi, Maturi, Raj, Mehta, Sonia, Menon, Geeta, Mentes, Jale, Michels, Mark, Mitamura, Yoshinori, Mitchell, Paul, Mohamed, Quresh, Mones, Jordi, Lobo, Rodrigo Montemayor, Montero, Javier, Moore, Jeffrey, Mori, Ryusaburo, Morori-Katz, Haia, Mukherjee, Raj, Murata, Toshinori, Muzyka-Wozniak, Maria, Nardi, Marco, Narendran, Niro, Nicolo, Massimo, Nielsen, Jared, Nishimura, Tetsuya, Noda, Kousuke, Nowinska, Anna, Oh, Hideyasu, Ohr, Matthew, Okada, Annabelle, Oleksy, Piotr, Ono, Shinji, Ozdek, Sengul, Ozturk, Banu, Pablo, Luis, Park, Kyu Hyung, Parke, D. Wilk, Parravano, Maria Cristina, Patel, Praveen, Patel, Apurva, Patel, Sunil, Patel, Sugat, Pauleikhoff, Daniel, Pearce, Ian, Pearlman, Joel, Petkova, Iva, Pieramici, Dante, Pozdeyeva, Nadezhda, Qureshi, Jawad, Raczynska, Dorota, Ramirez Estudillo, Juan, Rathod, Rajiv, Razavi, Hessam, Regillo, Carl, Reilly, Gayatri, Ricci, Federico, Rich, Ryan, Romanowska-Dixon, Bożena, Rosenblatt, Irit, Ruiz Moreno, Jose Maria, Sacu, Stefan, Saedon, Habiba, Saeed, Usman, Sagong, Min, Sakamoto, Taiji, Sandhu, Sukhpal, Sararols, Laura, Saravia, Mario, Schadlu, Ramin, Schlottmann, Patricio, Sekiryu, Tetsuju, Seres, András, Sermet, Figen, Shah, Sumit, Shah, Rohan, Shah, Ankur, Sheidow, Thomas, Sheth, Veeral, Shiragami, Chieko, Sikorski, Bartosz, Silva, Rufino, Singerman, Lawrence, Sisk, Robert, Sørensen, Torben L., Souied, Eric, Spinak, David-J., Staurenghi, Giovanni, Steinmetz, Robert, Stoller, Glenn, Stoltz, Robert, Suan, Eric, Suner, Ivan, Yzer, Suzanne, Tadayoni, Ramin, Takahashi, Kanji, Takayama, Kei, Taleb, Alexandre, Talks, James, Terasaki, Hiroko, Thompson, John, Toth-Molnar, Edit, Tran, Khoi, Tuli, Raman, Uchiyama, Eduardo, Vajas, Attila, Lith-Verhoeven, Janneke Van, Varsanyi, Balazs, Viola, Francesco, Virgili, Gianni, Vogt, Gábor, Völker, Michael, Warrow, David, Weber, Pamela, Wells, John A., Wickremasinghe, Sanjeewa, Wieland, Mark, Williams, Geoff, Williams, Thomas, Wong, David, Wong, King, Wong, James, Wong, Ian, Wong, Robert, Wowra, Bogumil, Wykoff, Charles C., Yamashita, Ayana, Yasuda, Kanako, Yilmaz, Gursel, Yiu, Glenn, Yoneda, Ai, Yoon, Young Hee, Yoreh, Barak, Yu, Hyeong Gon, Yu, Seung Young, Yurieva, Tatiana, Zambrano, Alberto, Zatorska, Barbara, Zeolite, Carlos, Khanani, Arshad M., Kotecha, Aachal, Chen, Youxin, Heier, Jeffrey S., Holz, Frank G., Ives, Jane A., Lim, Jennifer I., Lin, Hugh, Michels, Stephan, Quezada Ruiz, Carlos, Schmidt-Erfurth, Ursula, Silverman, David, Singh, Rishi, Swaminathan, Balakumar, and Willis, Jeffrey R.

Published
2024
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10. Primordial Black Hole Evaporation and Dark Matter Production: I. Solely Hawking radiation

Author

Cheek, Andrew, Heurtier, Lucien, Perez-Gonzalez, Yuber F., and Turner, Jessica

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Hawking evaporation of black holes in the early Universe is expected to copiously produce all kinds of particles, regardless of their charges under the Standard Model gauge group. For this reason, any fundamental particle, known or otherwise, could be produced during the black hole lifetime. This certainly includes dark matter (DM) particles. This paper improves upon previous calculations of DM production from primordial black holes (PBH) by consistently including the greybody factors, and by meticulously tracking a system of coupled Boltzmann equations. We show that the initial PBH densities required to produce the observed relic abundance depend strongly on the DM spin, varying in about $\sim 2$ orders of magnitude between a spin-2 and a scalar DM in the case of non-rotating PBHs. For Kerr PBHs, we have found that the expected enhancement in the production of bosons reduces the initial fraction needed to explain the measurements. We further consider indirect production of DM by assuming the existence of additional and unstable degrees of freedom emitted by the evaporation, which later decay into the DM. For a minimal setup where there is only one heavy particle, we find that the final relic abundance can be increased by at most a factor of $\sim 4$ for a scalar heavy state and a Schwarzschild PBH, or by a factor of $\sim 4.3$ for a spin-2 particle in the case of a Kerr PBH., Comment: 20 pages, 10 figures, code available at https://github.com/earlyuniverse/ulysses Added clarifying comments and figures. Matches published version

Published
2021
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11. Primordial Black Hole Evaporation and Dark Matter Production: II. Interplay with the Freeze-In/Out Mechanism

Author

Cheek, Andrew, Heurtier, Lucien, Perez-Gonzalez, Yuber F., and Turner, Jessica

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We study how the evaporation of primordial black holes (PBHs) can affect the production of dark matter (DM) particles through thermal processes. We consider fermionic DM interacting with Standard Model particles via a spin-1 mediator in the context of a Freeze-Out or Freeze-In mechanism. We show that when PBHs evaporate after dominating the Universe's energy density, PBHs act as a source of DM and continuously inject entropy into the visible sector that can affect the thermal production in three qualitatively different ways. We compute the annihilation cross-sections which account for the interactions between and within the PBH produced and thermally produced DM populations, and establish a set of Boltzmann equations which we solve to obtain the correct relic abundance in those different regimes and confront the results with a set of different cosmological constraints. We provide analytic formulae to calculate the relic abundance for the Freeze-Out and Freeze-In mechanism in a PBH dominated early Universe. We identify regions of the parameter space where the PBHs dilute the relic density and thermalization occurs. Furthermore, we have made our code that numerically solves the Boltzmann equations publicly available., Comment: 21 pages, 13 figures, code available at https://github.com/earlyuniverse/ulysses Added clarifying comments. Matches published version

Published
2021
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12. Light and Darkness: consistently coupling dark matter to photons via effective operators

Author

Arina, Chiara, Cheek, Andrew, Mimasu, Ken, and Pagani, Luca

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We revise the treatment of fermionic dark matter interacting with photons via dimension-5 and -6 effective operators. We show how the application of the effective operators beyond their validity introduces unphysical, gauge violating effects that are relevant for current experimental searches. Restoring gauge invariance by coupling dark matter to the hypercharge gauge field has implications for the parameter space above and below the electroweak scale. We review the phenomenology of these hypercharge form factors at the LHC as well as for direct and indirect detection experiments. We highlight where the electromagnetic and hypercharge descriptions lead to wildly different conclusions about the viable parameter space and the relative sensitivity of various probes. These include a drastic weakening of vector bosons fusion versus mono-jet searches at the LHC, and the incorrect impression that indirect searches could lead to better constraints than direct detection for larger dark matter masses. We find that the dimension-5 operators are strongly constrained by direct detection bounds, while for dimension-6 operators LHC mono-jet searches are competitive or performing better than the other probes we consider., Comment: 24 pages, 14 figures, 2 tables. Matches published version, additional information in figure 1

Published
2020
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13. The dark matter component of the Gaia radially anisotropic substructure

Author

Bozorgnia, Nassim, Fattahi, Azadeh, Frenk, Carlos S., Cheek, Andrew, Cerdeno, David G., Gómez, Facundo A., Grand, Robert J. J., and Marinacci, Federico

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology
Abstract

We study the properties of the dark matter component of the radially anisotropic stellar population recently identified in the Gaia data, using magneto-hydrodynamical simulations of Milky Way-like halos from the Auriga project. We identify 10 simulated galaxies that approximately match the rotation curve and stellar mass of the Milky Way. Four of these have an anisotropic stellar population reminiscent of the Gaia structure. We find an anti-correlation between the dark matter mass fraction of this population in the Solar neighbourhood and its orbital anisotropy. We estimate the local dark matter density and velocity distribution for halos with and without the anisotropic stellar population, and use them to simulate the signals expected in future xenon and germanium direct detection experiments. We find that a generalized Maxwellian distribution fits the dark matter halo integrals of the Milky Way-like halos containing the radially anisotropic stellar population. For dark matter particle masses below approximately 10 GeV, direct detection exclusion limits for the simulated halos with the anisotropic stellar population show a mild shift towards smaller masses compared to the commonly adopted Standard Halo Model., Comment: 29 pages, 14 figures, 6 tables; JCAP accepted version

Published
2019
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14. Preparing for Dark Matter : maximising our discrimination power in the event of detection

Author

Cheek, Andrew

Subjects
530
Abstract

Numerous experimental observations place Dark Matter (DM) as a central character in our cosmological history. Many extensions to the Standard Model of particles physics provide candidates for DM, often predicting interactions additional to gravity. This gives us the opportunity to experimentally probe these extensions and determine the nature of DM. In this thesis, we explore how direct DM detection could be used most effectively to achieve this goal. With this in mind, we have developed a tool for performing multidimensional parameter scans. This tool allows us to evaluate the capabilities of current and future detectors for detecting and understanding DM interactions. We show that by extending the energy region analysed, detection sensitivities and parameter reconstruction can be improved substantially. These insights play an important role in more global analyses, where hints of DM could come from other experiments, but verification depends on direct detection.

Published
2019

16. Opening the energy window on direct dark matter detection

Author

Bozorgnia, Nassim, Cerdeno, David G., Cheek, Andrew, and Penning, Bjoern

Subjects
High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

In this article we investigate the benefits of increasing the maximum nuclear recoil energy analysed in dark matter (DM) direct detection experiments. We focus on elastic DM-nucleus interactions, and work within the framework of effective field theory (EFT) to describe the scattering cross section. In agreement with previous literature, we show that an increased maximum energy leads to more stringent upper bounds on the DM-nucleus cross section for the EFT operators, especially those with an explicit momentum dependence. In this article we extend the energy region of interest (ROI) to show that the optimal values of the maximum energy for xenon and argon are of the order of 500 keV and 300 keV, respectively. We then show how, if a signal compatible with DM is observed, an enlarged energy ROI leads to a better measurement of the DM mass and couplings. In particular, for a xenon detector, DM masses of the order of 200 GeV (2 TeV) or lower can be reconstructed for momentum-independent (-dependent) operators. We also investigate three-dimensional parameter reconstruction and apply it to the specific case of scalar DM and anapole DM. We find that opening the energy ROI is an excellent way to identify the linear combination of momentum-dependent and momentum-independent operators, and it is crucial to correctly distinguish these models. Finally, we show how an enlarged energy ROI also allows us to test astrophysical parameters of the DM halo, such as the DM escape speed., Comment: 23 pages, 9 figures, references added

Published
2018
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17. Efficacy, durability, and safety of intravitreal faricimab up to every 16 weeks for neovascular age-related macular degeneration (TENAYA and LUCERNE): two randomised, double-masked, phase 3, non-inferiority trials

Author

Abbey, Ashkan, Abdulaeva, Elmira, Abraham, Prema, Adan Civera, Alfredo, Agostini, Hansjurgen, Alezzandrini, Arturo, Alfaro, Virgil, Almony, Arghavan, Altay, Lebriz, Amini, Payam, Antoszyk, Andrew, Aradi, Etelka, Arias, Luis, Arnold, Jennifer, Asaria, Riaz, Astakhov, Sergei, Astakhov, Yury, Awh, Carl C., Balaratnasingam, Chandra, Banerjee, Sanjiv, Baumal, Caroline, Becker, Matthias, Belfort, Rubens, Jr., Bratko, Galina, Bridges, William Jr. Z, Brown, Jamin, Brown, David M., Budzinskaya, Maria, Buffet, Sylvia, Burgess, Stuart, Byon, Iksoo, Cagini, Carlo, Calzada, Jorge, Cameron, Stone, Campochiaro, Peter, Carlson, John, Carneiro, Angela, Chan, Clement, Chang, Emmanuel, Chang, Andrew, Chao, Daniel, Chaudhry, Nauman, Chee, Caroline, Cheek, Andrew, Chen, Shih-Jen, Chen, San-Ni, Cheung, Gemmy, Chexal, Saradha, Chittum, Mark, Chow, David, Cole, Abosede, Connolly, Brian, Cornut, Pierre Loic, Couvillion, Stephen, Danzig, Carl, Daskalov, Vesselin, Dessouki, Amr, Devin, Francois, Dollin, Michael, Dolz, Rosa, Downey, Louise, Dreyer, Richard, Dugel, Pravin, Eichenbaum, David, Eldem, Bora, Engstrom, Robert, Escobar, Joan Josep, Eter, Nicole, Faber, David W., Falk, Naomi, Feiner, Leonard, Fernandez Vega, Alvaro, Ferrone, Philip, Figueroa, Marta, Fine, Howard, Fineman, Mitchell, Fox, Gregory M., Francais, Catherine, Franco, Pablo, Fraser-Bell, Samantha, Fung, Nicholas, Furno Sola, Federico, Gale, Richard, Garcia-Layana, Alfredo, Gasperini, Julie, Gawecki, Maciej, Ghanchi, Faruque, Gill, Manjot, Giunta, Michel, Glaser, David, Goldstein, Michaella, Gomez Ulla, Francisco, Gomi, Fumi, Gonzalez, Victor, Graff, Jordan, Gupta, Sunil, Guthoff, Rainer, Guymer, Robyn, Haas, Anton, Hampton, Robert, Hatz, Katja, Hayashi, Ken, Heier, Jeffrey, Herba, Ewa, Hershberger, Vrinda, Higgins, Patrick, Holekamp, Nancy, Honda, Shigeru, Howard, James, Hu, Allen, Huddleston, Stephen, Iida, Tomohiro, Imaizumi, Hiroko, Ito, Yasuo, Ito, Yasuki, Itty, Sujit, Javey, Golnaz, Javid, Cameron, Kaga, Tatsushi, Kaluzny, Jakub, Kang, Se Woong, Kapoor, Kapil, Karabas, Levent, Kawasaki, Tsutomu, Kelty, Patrick, Kerenyi, Agnes, Khanani, Arshad, Khoramnia, Ramin, Khurana, Rahul, Kimura, Kazuhiro, Klein-Mascia, Kendra, Kobayashi, Namie, Kodjikian, Laurent, Koizumi, Hideki, Kokame, Gregg, Kulikov, Alexey, Kwong, Henry, Kwun, Robert, Lai, Timothy, Lai, Chi-Chun, Lalonde, Laurent, Lanzetta, Paolo, Larsen, Michael, Lavina, Adrian, Lee, Won Ki, Lee, ji Eun, Lee, Seong, Levy, Jaime, Lindsell, Lucas, Liu, Mimi, London, Nikolas, Lotery, Andrew, Lozano Rechy, David, Luckie, Alan, Maberley, David, Maeno, Takatoshi, Mahmood, Sajjad, Makkouk, Fuad, Marcus, Dennis, Margherio, Alan, Masse, Helene, Matsubara, Hisashi, Maturi, Raj, Mehta, Sonia, Menon, Geeta, Mentes, Jale, Michels, Mark, Mitamura, Yoshinori, Mitchell, Paul, Mohamed, Quresh, Mones, Jordi, Montemayor Lobo, Rodrigo, Montero, Javier, Moore, Jeffrey, Mori, Ryusaburo, Morori-Katz, Haia, Mukherjee, Raj, Murata, Toshinori, Muzyka-Wozniak, Maria, Nardi, Marco, Narendran, Niro, Nicolo, Massimo, Nielsen, Jared, Nishimura, Tetsuya, Noda, Kousuke, Nowinska, Anna, Oh, Hideyasu, Ohr, Matthew, Okada, Annabelle, Oleksy, Piotr, Ono, Shinji, Ozdek, Sengul, Ozturk, Banu, Pablo, Luis, Park, Kyu Hyung, Parke, D. Wilki, Parravano, Maria Cristina, Patel, Praveen, Patel, Apurva, Patel, Sunil, Patel, Sugat, Pauleikhoff, Daniel, Pearce, Ian, Pearlman, Joel, Petkova, Iva, Pieramici, Dante, Pozdeyeva, Nadezhda, Qureshi, Jawad, Raczynska, Dorota, Ramirez Estudillo, Juan, Rathod, Rajiv, Razavi, Hessam, Regillo, Carl, Reilly, Gayatri, Ricci, Federico, Rich, Ryan, Romanowska-Dixon, Bożena, Rosenblatt, Irit, Ruiz Moreno, Jose Maria, Sacu, Stefan, Saedon, Habiba, Saeed, Usman, Sagong, Min, Sakamoto, Taiji, Sandhu, Sukhpal, Sararols, Laura, Saravia, Mario, Schadlu, Ramin, Schlottmann, Patricio, Sekiryu, Tetsuju, Seres, András, Sermet, Figen, Shah, Sumit, Shah, Rohan, Shah, Ankur, Sheidow, Thomas, Sheth, Veeral, Shiragami, Chieko, Sikorski, Bartosz, Silva, Rufino, Singerman, Lawrence, Sisk, Robert, Sørensen, Torben L., Souied, Eric, Spinak, David-J, Staurenghi, Giovanni, Steinmetz, Robert, Stoller, Glenn, Stoltz, Robert, Suan, Eric, Suner, Ivan, Suzanne, Yzer, Tadayoni, Ramin, Takahashi, Kanji, Takayama, Kei, Taleb, Alexandre, Talks, James, Terasaki, Hiroko, Thompson, John, Toth-Molnar, Edit, Tran, Khoi, Tuli, Raman, Uchiyama, Eduardo, Vajas, Attila, Van Lith-Verhoeven, Janneke, Varsanyi, Balazs, Viola, Francesco, Virgili, Gianni, Vogt, Gábor, Völker, Michael, Warrow, David, Weber, Pamela, Wells, John A., Wickremasinghe, Sanjeewa, Wieland, Mark, Williams, Geoff, Williams, Thomas, Wong, David, Wong, King, Wong, James, Wong, Ian, Wong, Robert, Wowra, Bogumil, Wykoff, Charles C., Yamashita, Ayana, Yasuda, Kanako, Yilmaz, Gursel, Yiu, Glenn, Yoneda, Ai, Yoon, Young Hee, Yoreh, Barak, Yu, HyeongGon, Yu, Seung Young, Yurieva, Tatiana, Zambrano, Alberto, Zatorska, Barbara, Zeolite, Carlos, Heier, Jeffrey S, Khanani, Arshad M, Quezada Ruiz, Carlos, Basu, Karen, Ferrone, Philip J, Brittain, Christopher, Figueroa, Marta S, Lin, Hugh, Holz, Frank G, Patel, Vaibhavi, Lai, Timothy Y Y, Silverman, David, Swaminathan, Balakumar, Cheung, Chui Ming Gemmy, and Wong, Tien Y

Published
2022
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19. TENAYA and LUCERNE

Author

Khanani, Arshad M., primary, Kotecha, Aachal, additional, Chang, Andrew, additional, Chen, Shih-Jen, additional, Chen, Youxin, additional, Guymer, Robyn, additional, Heier, Jeffrey S., additional, Holz, Frank G., additional, Iida, Tomohiro, additional, Ives, Jane A., additional, Lim, Jennifer I., additional, Lin, Hugh, additional, Michels, Stephan, additional, Quezada Ruiz, Carlos, additional, Schmidt-Erfurth, Ursula, additional, Silverman, David, additional, Singh, Rishi, additional, Swaminathan, Balakumar, additional, Willis, Jeffrey R., additional, Tadayoni, Ramin, additional, Abbey, Ashkan, additional, Abdulaeva, Elmira, additional, Abraham, Prema, additional, Adan Civera, Alfredo, additional, Agostini, Hansjurgen, additional, Alezzandrini, Arturo, additional, Alfaro, Virgil, additional, Almony, Arghavan, additional, Altay, Lebriz, additional, Amini, Payam, additional, Antoszyk, Andrew, additional, Aradi, Etelka, additional, Arias, Luis, additional, Arnold, Jennifer, additional, Asaria, Riaz, additional, Astakhov, Sergei, additional, Astakhov, Yury, additional, Awh, Carl C., additional, Balaratnasingam, Chandra, additional, Banerjee, Sanjiv, additional, Baumal, Caroline, additional, Becker, Matthias, additional, Belfort, Rubens, additional, Bratko, Galina, additional, Bridges, William Z., additional, Brown, Jamin, additional, Brown, David M., additional, Budzinskaya, Maria, additional, Buffet, Sylvia, additional, Burgess, Stuart, additional, Byon, Iksoo, additional, Cagini, Carlo, additional, Calzada, Jorge, additional, Cameron, Stone, additional, Campochiaro, Peter, additional, Carlson, John, additional, Carneiro, Angela, additional, Chan, Clement, additional, Chang, Emmanuel, additional, Chao, Daniel, additional, Chaudhry, Nauman, additional, Chee, Caroline, additional, Cheek, Andrew, additional, Chen, San-Ni, additional, Cheung, Gemmy, additional, Chexal, Saradha, additional, Chittum, Mark, additional, Chow, David, additional, Cole, Abosede, additional, Connolly, Brian, additional, Cornut, Pierre Loic, additional, Couvillion, Stephen, additional, Danzig, Carl, additional, Daskalov, Vesselin, additional, Dessouki, Amr, additional, Devin, Francois, additional, Dollin, Michael, additional, Dolz, Rosa, additional, Downey, Louise, additional, Dreyer, Richard, additional, Dugel, Pravin, additional, Eichenbaum, David, additional, Eldem, Bora, additional, Engstrom, Robert, additional, Escobar, Joan Josep, additional, Eter, Nicole, additional, Faber, David W., additional, Falk, Naomi, additional, Feiner, Leonard, additional, Vega, Alvaro Fernandez, additional, Ferrone, Philip, additional, Figueroa, Marta, additional, Fine, Howard, additional, Fineman, Mitchell, additional, Fox, Gregory M., additional, Francais, Catherine, additional, Franco, Pablo, additional, Fraser-Bell, Samantha, additional, Fung, Nicholas, additional, Sola, Federico Furno, additional, Gale, Richard, additional, Garcia-Layana, Alfredo, additional, Gasperini, Julie, additional, Gawecki, Maciej, additional, Ghanchi, Faruque, additional, Gill, Manjot, additional, Giunta, Michel, additional, Glaser, David, additional, Goldstein, Michaella, additional, Ulla, Francisco Gomez, additional, Gomi, Fumi, additional, Gonzalez, Victor, additional, Graff, Jordan, additional, Gupta, Sunil, additional, Guthoff, Rainer, additional, Haas, Anton, additional, Hampton, Robert, additional, Hatz, Katja, additional, Hayashi, Ken, additional, Heier, Jeffrey, additional, Herba, Ewa, additional, Hershberger, Vrinda, additional, Higgins, Patrick, additional, Holekamp, Nancy, additional, Honda, Shigeru, additional, Howard, James, additional, Hu, Allen, additional, Huddleston, Stephen, additional, Imaizumi, Hiroko, additional, Ito, Yasuo, additional, Ito, Yasuki, additional, Itty, Sujit, additional, Javey, Golnaz, additional, Javid, Cameron, additional, Kaga, Tatsushi, additional, Kaluzny, Jakub, additional, Kang, Se Woong, additional, Kapoor, Kapil, additional, Karabas, Levent, additional, Kawasaki, Tsutomu, additional, Kelty, Patrick, additional, Kerenyi, Agnes, additional, Khanani, Arshad, additional, Khoramnia, Ramin, additional, Khurana, Rahul, additional, Kimura, Kazuhiro, additional, Klein-Mascia, Kendra, additional, Kobayashi, Namie, additional, Kodjikian, Laurent, additional, Koizumi, Hideki, additional, Kokame, Gregg, additional, Kulikov, Alexey, additional, Kwong, Henry, additional, Kwun, Robert, additional, Lai, Timothy, additional, Lai, Chi-Chun, additional, Lalonde, Laurent, additional, Lanzetta, Paolo, additional, Larsen, Michael, additional, Lavina, Adrian, additional, Lee, Won Ki, additional, Lee, ji Eun, additional, Lee, Seong, additional, Levy, Jaime, additional, Lindsell, Lucas, additional, Liu, Mimi, additional, London, Nikolas, additional, Lotery, Andrew, additional, Lozano Rechy, David, additional, Luckie, Alan, additional, Maberley, David, additional, Maeno, Takatoshi, additional, Mahmood, Sajjad, additional, Makkouk, Fuad, additional, Marcus, Dennis, additional, Margherio, Alan, additional, Masse, Helene, additional, Matsubara, Hisashi, additional, Maturi, Raj, additional, Mehta, Sonia, additional, Menon, Geeta, additional, Mentes, Jale, additional, Michels, Mark, additional, Mitamura, Yoshinori, additional, Mitchell, Paul, additional, Mohamed, Quresh, additional, Mones, Jordi, additional, Lobo, Rodrigo Montemayor, additional, Montero, Javier, additional, Moore, Jeffrey, additional, Mori, Ryusaburo, additional, Morori-Katz, Haia, additional, Mukherjee, Raj, additional, Murata, Toshinori, additional, Muzyka-Wozniak, Maria, additional, Nardi, Marco, additional, Narendran, Niro, additional, Nicolo, Massimo, additional, Nielsen, Jared, additional, Nishimura, Tetsuya, additional, Noda, Kousuke, additional, Nowinska, Anna, additional, Oh, Hideyasu, additional, Ohr, Matthew, additional, Okada, Annabelle, additional, Oleksy, Piotr, additional, Ono, Shinji, additional, Ozdek, Sengul, additional, Ozturk, Banu, additional, Pablo, Luis, additional, Park, Kyu Hyung, additional, Parke, D. Wilk, additional, Parravano, Maria Cristina, additional, Patel, Praveen, additional, Patel, Apurva, additional, Patel, Sunil, additional, Patel, Sugat, additional, Pauleikhoff, Daniel, additional, Pearce, Ian, additional, Pearlman, Joel, additional, Petkova, Iva, additional, Pieramici, Dante, additional, Pozdeyeva, Nadezhda, additional, Qureshi, Jawad, additional, Raczynska, Dorota, additional, Ramirez Estudillo, Juan, additional, Rathod, Rajiv, additional, Razavi, Hessam, additional, Regillo, Carl, additional, Reilly, Gayatri, additional, Ricci, Federico, additional, Rich, Ryan, additional, Romanowska-Dixon, Bożena, additional, Rosenblatt, Irit, additional, Ruiz Moreno, Jose Maria, additional, Sacu, Stefan, additional, Saedon, Habiba, additional, Saeed, Usman, additional, Sagong, Min, additional, Sakamoto, Taiji, additional, Sandhu, Sukhpal, additional, Sararols, Laura, additional, Saravia, Mario, additional, Schadlu, Ramin, additional, Schlottmann, Patricio, additional, Sekiryu, Tetsuju, additional, Seres, András, additional, Sermet, Figen, additional, Shah, Sumit, additional, Shah, Rohan, additional, Shah, Ankur, additional, Sheidow, Thomas, additional, Sheth, Veeral, additional, Shiragami, Chieko, additional, Sikorski, Bartosz, additional, Silva, Rufino, additional, Singerman, Lawrence, additional, Sisk, Robert, additional, Sørensen, Torben L., additional, Souied, Eric, additional, Spinak, David-J., additional, Staurenghi, Giovanni, additional, Steinmetz, Robert, additional, Stoller, Glenn, additional, Stoltz, Robert, additional, Suan, Eric, additional, Suner, Ivan, additional, Yzer, Suzanne, additional, Takahashi, Kanji, additional, Takayama, Kei, additional, Taleb, Alexandre, additional, Talks, James, additional, Terasaki, Hiroko, additional, Thompson, John, additional, Toth-Molnar, Edit, additional, Tran, Khoi, additional, Tuli, Raman, additional, Uchiyama, Eduardo, additional, Vajas, Attila, additional, Lith-Verhoeven, Janneke Van, additional, Varsanyi, Balazs, additional, Viola, Francesco, additional, Virgili, Gianni, additional, Vogt, Gábor, additional, Völker, Michael, additional, Warrow, David, additional, Weber, Pamela, additional, Wells, John A., additional, Wickremasinghe, Sanjeewa, additional, Wieland, Mark, additional, Williams, Geoff, additional, Williams, Thomas, additional, Wong, David, additional, Wong, King, additional, Wong, James, additional, Wong, Ian, additional, Wong, Robert, additional, Wowra, Bogumil, additional, Wykoff, Charles C., additional, Yamashita, Ayana, additional, Yasuda, Kanako, additional, Yilmaz, Gursel, additional, Yiu, Glenn, additional, Yoneda, Ai, additional, Yoon, Young Hee, additional, Yoreh, Barak, additional, Yu, Hyeong Gon, additional, Yu, Seung Young, additional, Yurieva, Tatiana, additional, Zambrano, Alberto, additional, Zatorska, Barbara, additional, and Zeolite, Carlos, additional

Published
2024
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25. A direct detection view of the neutrino NSI landscape

Author

Dorian Amaral, Cerdeno, David, Cheek, Andrew, and Foldenauer, Patrick

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
Abstract

In this article, we study the potential of direct detection experiments to explore the parameter space of general non-standard neutrino interactions (NSI) via solar neutrino scattering. Due to their sensitivity to neutrino-electron and neutrino-nucleus scattering, direct detection provides a complementary view of the NSI landscape to that of spallation sources and neutrino oscillation experiments. In particular, the large admixture of tau neutrinos in the solar flux makes direct detection experiments well-suited to probe the full flavour space of NSI. To study this, we develop a re-parametrisation of the NSI framework that explicitly includes a variable electron contribution and allows for a clear visualisation of the complementarity of the different experimental sources. Using this new parametrisation, we explore how previous bounds from spallation source and neutrino oscillation experiments are impacted. For the first time, we compute limits on NSI from the first results of the XENONnT and LUX-ZEPLIN experiments, and we obtain projections for future xenon-based experiments. Our results demonstrate the importance of using a more general NSI parametrisation and indicate that next generation direct detection experiments will become powerful probes of neutrino NSI., 40 pages, 7 figures, 2 appendices

Published
2023

27. Efficacy, durability, and safety of intravitreal faricimab up to every 16 weeks for neovascular age-related macular degeneration (TENAYA and LUCERNE): two randomised, double-masked, phase 3, non-inferiority trials

Author

Heier, Jeffrey S, primary, Khanani, Arshad M, additional, Quezada Ruiz, Carlos, additional, Basu, Karen, additional, Ferrone, Philip J, additional, Brittain, Christopher, additional, Figueroa, Marta S, additional, Lin, Hugh, additional, Holz, Frank G, additional, Patel, Vaibhavi, additional, Lai, Timothy Y Y, additional, Silverman, David, additional, Regillo, Carl, additional, Swaminathan, Balakumar, additional, Viola, Francesco, additional, Cheung, Chui Ming Gemmy, additional, Wong, Tien Y, additional, Abbey, Ashkan, additional, Abdulaeva, Elmira, additional, Abraham, Prema, additional, Adan Civera, Alfredo, additional, Agostini, Hansjurgen, additional, Alezzandrini, Arturo, additional, Alfaro, Virgil, additional, Almony, Arghavan, additional, Altay, Lebriz, additional, Amini, Payam, additional, Antoszyk, Andrew, additional, Aradi, Etelka, additional, Arias, Luis, additional, Arnold, Jennifer, additional, Asaria, Riaz, additional, Astakhov, Sergei, additional, Astakhov, Yury, additional, Awh, Carl C., additional, Balaratnasingam, Chandra, additional, Banerjee, Sanjiv, additional, Baumal, Caroline, additional, Becker, Matthias, additional, Belfort, Rubens, additional, Bratko, Galina, additional, Bridges, William Jr. Z, additional, Brown, Jamin, additional, Brown, David M., additional, Budzinskaya, Maria, additional, Buffet, Sylvia, additional, Burgess, Stuart, additional, Byon, Iksoo, additional, Cagini, Carlo, additional, Calzada, Jorge, additional, Cameron, Stone, additional, Campochiaro, Peter, additional, Carlson, John, additional, Carneiro, Angela, additional, Chan, Clement, additional, Chang, Emmanuel, additional, Chang, Andrew, additional, Chao, Daniel, additional, Chaudhry, Nauman, additional, Chee, Caroline, additional, Cheek, Andrew, additional, Chen, Shih-Jen, additional, Chen, San-Ni, additional, Cheung, Gemmy, additional, Chexal, Saradha, additional, Chittum, Mark, additional, Chow, David, additional, Cole, Abosede, additional, Connolly, Brian, additional, Cornut, Pierre Loic, additional, Couvillion, Stephen, additional, Danzig, Carl, additional, Daskalov, Vesselin, additional, Dessouki, Amr, additional, Devin, Francois, additional, Dollin, Michael, additional, Dolz, Rosa, additional, Downey, Louise, additional, Dreyer, Richard, additional, Dugel, Pravin, additional, Eichenbaum, David, additional, Eldem, Bora, additional, Engstrom, Robert, additional, Escobar, Joan Josep, additional, Eter, Nicole, additional, Faber, David W., additional, Falk, Naomi, additional, Feiner, Leonard, additional, Fernandez Vega, Alvaro, additional, Ferrone, Philip, additional, Figueroa, Marta, additional, Fine, Howard, additional, Fineman, Mitchell, additional, Fox, Gregory M., additional, Francais, Catherine, additional, Franco, Pablo, additional, Fraser-Bell, Samantha, additional, Fung, Nicholas, additional, Furno Sola, Federico, additional, Gale, Richard, additional, Garcia-Layana, Alfredo, additional, Gasperini, Julie, additional, Gawecki, Maciej, additional, Ghanchi, Faruque, additional, Gill, Manjot, additional, Giunta, Michel, additional, Glaser, David, additional, Goldstein, Michaella, additional, Gomez Ulla, Francisco, additional, Gomi, Fumi, additional, Gonzalez, Victor, additional, Graff, Jordan, additional, Gupta, Sunil, additional, Guthoff, Rainer, additional, Guymer, Robyn, additional, Haas, Anton, additional, Hampton, Robert, additional, Hatz, Katja, additional, Hayashi, Ken, additional, Heier, Jeffrey, additional, Herba, Ewa, additional, Hershberger, Vrinda, additional, Higgins, Patrick, additional, Holekamp, Nancy, additional, Honda, Shigeru, additional, Howard, James, additional, Hu, Allen, additional, Huddleston, Stephen, additional, Iida, Tomohiro, additional, Imaizumi, Hiroko, additional, Ito, Yasuo, additional, Ito, Yasuki, additional, Itty, Sujit, additional, Javey, Golnaz, additional, Javid, Cameron, additional, Kaga, Tatsushi, additional, Kaluzny, Jakub, additional, Kang, Se Woong, additional, Kapoor, Kapil, additional, Karabas, Levent, additional, Kawasaki, Tsutomu, additional, Kelty, Patrick, additional, Kerenyi, Agnes, additional, Khanani, Arshad, additional, Khoramnia, Ramin, additional, Khurana, Rahul, additional, Kimura, Kazuhiro, additional, Klein-Mascia, Kendra, additional, Kobayashi, Namie, additional, Kodjikian, Laurent, additional, Koizumi, Hideki, additional, Kokame, Gregg, additional, Kulikov, Alexey, additional, Kwong, Henry, additional, Kwun, Robert, additional, Lai, Timothy, additional, Lai, Chi-Chun, additional, Lalonde, Laurent, additional, Lanzetta, Paolo, additional, Larsen, Michael, additional, Lavina, Adrian, additional, Lee, Won Ki, additional, Lee, ji Eun, additional, Lee, Seong, additional, Levy, Jaime, additional, Lindsell, Lucas, additional, Liu, Mimi, additional, London, Nikolas, additional, Lotery, Andrew, additional, Lozano Rechy, David, additional, Luckie, Alan, additional, Maberley, David, additional, Maeno, Takatoshi, additional, Mahmood, Sajjad, additional, Makkouk, Fuad, additional, Marcus, Dennis, additional, Margherio, Alan, additional, Masse, Helene, additional, Matsubara, Hisashi, additional, Maturi, Raj, additional, Mehta, Sonia, additional, Menon, Geeta, additional, Mentes, Jale, additional, Michels, Mark, additional, Mitamura, Yoshinori, additional, Mitchell, Paul, additional, Mohamed, Quresh, additional, Mones, Jordi, additional, Montemayor Lobo, Rodrigo, additional, Montero, Javier, additional, Moore, Jeffrey, additional, Mori, Ryusaburo, additional, Morori-Katz, Haia, additional, Mukherjee, Raj, additional, Murata, Toshinori, additional, Muzyka-Wozniak, Maria, additional, Nardi, Marco, additional, Narendran, Niro, additional, Nicolo, Massimo, additional, Nielsen, Jared, additional, Nishimura, Tetsuya, additional, Noda, Kousuke, additional, Nowinska, Anna, additional, Oh, Hideyasu, additional, Ohr, Matthew, additional, Okada, Annabelle, additional, Oleksy, Piotr, additional, Ono, Shinji, additional, Ozdek, Sengul, additional, Ozturk, Banu, additional, Pablo, Luis, additional, Park, Kyu Hyung, additional, Parke, D. Wilki, additional, Parravano, Maria Cristina, additional, Patel, Praveen, additional, Patel, Apurva, additional, Patel, Sunil, additional, Patel, Sugat, additional, Pauleikhoff, Daniel, additional, Pearce, Ian, additional, Pearlman, Joel, additional, Petkova, Iva, additional, Pieramici, Dante, additional, Pozdeyeva, Nadezhda, additional, Qureshi, Jawad, additional, Raczynska, Dorota, additional, Ramirez Estudillo, Juan, additional, Rathod, Rajiv, additional, Razavi, Hessam, additional, Reilly, Gayatri, additional, Ricci, Federico, additional, Rich, Ryan, additional, Romanowska-Dixon, Bożena, additional, Rosenblatt, Irit, additional, Ruiz Moreno, Jose Maria, additional, Sacu, Stefan, additional, Saedon, Habiba, additional, Saeed, Usman, additional, Sagong, Min, additional, Sakamoto, Taiji, additional, Sandhu, Sukhpal, additional, Sararols, Laura, additional, Saravia, Mario, additional, Schadlu, Ramin, additional, Schlottmann, Patricio, additional, Sekiryu, Tetsuju, additional, Seres, András, additional, Sermet, Figen, additional, Shah, Sumit, additional, Shah, Rohan, additional, Shah, Ankur, additional, Sheidow, Thomas, additional, Sheth, Veeral, additional, Shiragami, Chieko, additional, Sikorski, Bartosz, additional, Silva, Rufino, additional, Singerman, Lawrence, additional, Sisk, Robert, additional, Sørensen, Torben L., additional, Souied, Eric, additional, Spinak, David-J, additional, Staurenghi, Giovanni, additional, Steinmetz, Robert, additional, Stoller, Glenn, additional, Stoltz, Robert, additional, Suan, Eric, additional, Suner, Ivan, additional, Suzanne, Yzer, additional, Tadayoni, Ramin, additional, Takahashi, Kanji, additional, Takayama, Kei, additional, Taleb, Alexandre, additional, Talks, James, additional, Terasaki, Hiroko, additional, Thompson, John, additional, Toth-Molnar, Edit, additional, Tran, Khoi, additional, Tuli, Raman, additional, Uchiyama, Eduardo, additional, Vajas, Attila, additional, Van Lith-Verhoeven, Janneke, additional, Varsanyi, Balazs, additional, Virgili, Gianni, additional, Vogt, Gábor, additional, Völker, Michael, additional, Warrow, David, additional, Weber, Pamela, additional, Wells, John A., additional, Wickremasinghe, Sanjeewa, additional, Wieland, Mark, additional, Williams, Geoff, additional, Williams, Thomas, additional, Wong, David, additional, Wong, King, additional, Wong, James, additional, Wong, Ian, additional, Wong, Robert, additional, Wowra, Bogumil, additional, Wykoff, Charles C., additional, Yamashita, Ayana, additional, Yasuda, Kanako, additional, Yilmaz, Gursel, additional, Yiu, Glenn, additional, Yoneda, Ai, additional, Yoon, Young Hee, additional, Yoreh, Barak, additional, Yu, HyeongGon, additional, Yu, Seung Young, additional, Yurieva, Tatiana, additional, Zambrano, Alberto, additional, Zatorska, Barbara, additional, and Zeolite, Carlos, additional

Published
2022
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32. Dark Matter Phenomenology from Upcoming Neutrino Telescopes

Author

UCL - SST/IRMP - Institut de recherche en mathématique et physique, Cheek, Andrew, Basegmez du Pree, Suzan, Arina, Chiara, Chianese, Marco, Dekker, Ariane, Ando, Shin’ichiro, UCL - SST/IRMP - Institut de recherche en mathématique et physique, Cheek, Andrew, Basegmez du Pree, Suzan, Arina, Chiara, Chianese, Marco, Dekker, Ariane, and Ando, Shin’ichiro

Abstract

Experimental developments in neutrino telescopes are drastically improving their ability to constrain the annihilation cross-section of dark matter. Focusing on particle models for dark matter, we assess how these future limits will complement the existing landscape of dark matter searches. We bring together results from gamma-ray telescopes, measurements of the cosmic microwave background and direct dark matter detection. Our projections are based on the Angular Power Spectrum method, which is a powerful tool for reducing astrophysical uncertainties. We find that neutrino telescopes will be able to competitively probe significant portions of parameter space and will provide critical complementary information to the search for dark matter. Furthermore, we identify models that can potentially be explored where the relic abundance is achieved through thermal freeze-out.

Published
2021

34. B anomalies and dark matter: a complex connection

Author

Ministerio de Ciencia e Innovación (España), Cerdeño, David G. [0000-0002-7649-1956], Cheek, Andrew [0000-0002-8773-831X], Martín-Ramiro, P[0000-0001-5858-5783], Moreno, Jesus M. [0000-0002-2941-0690], Cerdeño, David G., Cheek, A., Martín-Ramiro, P., Moreno, J.M., Ministerio de Ciencia e Innovación (España), Cerdeño, David G. [0000-0002-7649-1956], Cheek, Andrew [0000-0002-8773-831X], Martín-Ramiro, P[0000-0001-5858-5783], Moreno, Jesus M. [0000-0002-2941-0690], Cerdeño, David G., Cheek, A., Martín-Ramiro, P., and Moreno, J.M.

Abstract

We study an extension of the Standard Model that addresses the hints of lepton flavour universality violation observed in B → K (∗)l+l− decays at LHCb, while providing a viable candidate for dark matter. The model incorporates two new scalar fields and a Majorana fermion that induce one- loop contributions to B meson decays. We show that agree- ment with observational data requires the new couplings to be complex and that the Majorana fermion can reproduce the observed dark matter relic density. This combination of cos- mological and flavour constraints sets an upper limit on the dark matter and mediator masses. We have studied LHC dijet and dilepton searches, finding that they rule out large regions of parameter space by setting lower bounds on the dark matter and mediator masses. In particular, dilepton bounds are much more constraining in a future high-luminosity phase. Finally, we have computed the scattering cross section of dark matter off nuclei and compared it to the sensitivity of current and future direct detection experiments, showing that parts of the parameter space could be accessible in the future to multi-ton experiments. Future collider and direct DM searches comple- ment each other to probe large areas of the parameter space of this model.

Published
2019

37. B anomalies and dark matter: a complex connection

Author

Pablo Martín-Ramiro, David G. Cerdeño, Jesus M. Moreno, Andrew Cheek, Ministerio de Ciencia e Innovación (España), Cerdeño, David G., Cheek, Andrew, Martín-Ramiro, P, Moreno, Jesus M., Cerdeño, David G. [0000-0002-7649-1956], Cheek, Andrew [0000-0002-8773-831X], Martín-Ramiro, P[0000-0001-5858-5783], and Moreno, Jesus M. [0000-0002-2941-0690]

Subjects
Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics and Astronomy (miscellaneous), Meson, Flavour, Dark matter, FOS: Physical sciences, lcsh:Astrophysics, Parameter space, Computer Science::Digital Libraries, 01 natural sciences, High Energy Physics - Phenomenology (hep-ph), lcsh:QB460-466, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Engineering (miscellaneous), Physics, Large Hadron Collider, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physics beyond the Standard Model, Universality (dynamical systems), High Energy Physics - Phenomenology, lcsh:QC770-798, High Energy Physics::Experiment, B anomalies, Astrophysics - Cosmology and Nongalactic Astrophysics, Majorana fermion, Lepton
Abstract

We study an extension of the Standard Model that addresses the hints of lepton flavour universality violation observed in B → K (∗)l+l− decays at LHCb, while providing a viable candidate for dark matter. The model incorporates two new scalar fields and a Majorana fermion that induce one- loop contributions to B meson decays. We show that agree- ment with observational data requires the new couplings to be complex and that the Majorana fermion can reproduce the observed dark matter relic density. This combination of cos- mological and flavour constraints sets an upper limit on the dark matter and mediator masses. We have studied LHC dijet and dilepton searches, finding that they rule out large regions of parameter space by setting lower bounds on the dark matter and mediator masses. In particular, dilepton bounds are much more constraining in a future high-luminosity phase. Finally, we have computed the scattering cross section of dark matter off nuclei and compared it to the sensitivity of current and future direct detection experiments, showing that parts of the parameter space could be accessible in the future to multi-ton experiments. Future collider and direct DM searches comple- ment each other to probe large areas of the parameter space of this model., Centro de Excelencia Severo Ochoa under Grant SEV-2016-0597 and Grant FPA2016-78022-P

Published
2019

38. Dark Matter Phenomenology from Upcoming Neutrino Telescopes

Author

Chiara Arina, Shin'ichiro Ando, Suzan Basegmez du Pree, Marco Chianese, Andrew Cheek, Ariane Dekker, IoP (FNWI), GRAPPA (ITFA, IoP, FNWI), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Cheek, Andrew, Basegmez du Pree, Suzan, Arina, Chiara, Chianese, Marco, Dekker, Ariane, and Ando, Shin’Ichiro

Subjects
Physics, Annihilation, Particle model, Astrophysics::High Energy Astrophysical Phenomena, Cosmic microwave background, Dark matter, Spectral density, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Neutrino, Parameter space, Phenomenology (particle physics), high energy physics
Abstract

Experimental developments in neutrino telescopes are drastically improving their ability to constrain the annihilation cross-section of dark matter. Focusing on particle models for dark matter, we assess how these future limits will complement the existing landscape of dark matter searches. We bring together results from gamma-ray telescopes, measurements of the cosmic microwave background and direct dark matter detection. Our projections are based on the Angular Power Spectrum method, which is a powerful tool for reducing astrophysical uncertainties. We find that neutrino telescopes will be able to competitively probe significant portions of parameter space and will provide critical complementary information to the search for dark matter. Furthermore, we identify models that can potentially be explored where the relic abundance is achieved through thermal freeze-out. This proceeding is based on Ref [1].

Published
2022

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