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Probing new physics at DUNE operating in a beam-dump mode
/ Brdar, Vedran (Fermilab ; Northwestern U.) ; Dutta, Bhaskar (Texas A-M) ; Jang, Wooyoung (DAPNIA, Saclay ; Brookhaven ; Texas U., Arlington) ; Kim, Doojin (Texas A-M) ; Shoemaker, Ian M. (Virginia Tech.) ; Tabrizi, Zahra (Northwestern U.) ; Thompson, Adrian (Texas A-M) ; Yu, Jaehoon (DAPNIA, Saclay ; Brookhaven ; Texas U., Arlington ; CERN)
In this work we demonstrate that a future accelerator-based neutrino experiment such as DUNE can greatly increase its sensitivity to a variety of new physics scenarios by operating in a mode where the proton beam impinges on a beam dump. We consider two new physics scenarios, namely light dark matter (LDM) and axion-like particles (ALPs) and show that by utilizing a dump mode at a DUNE-like experiment, unexplored new regions of parameter space can be probed with an exposure of only 3 months with half of its expected initial beam power. [...]
arXiv:2206.06380; MI-HET-778; FERMILAB-PUB-22-453-T; NUHEP-TH/22-04.-
2023-03-01 - 7 p.
- Published in : Phys. Rev. D 107 (2023) 055043
Fulltext: 7dfa181dcad9f63331fdeada7b6b9697 - PDF; 2206.06380 - PDF; Publication - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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Enhancing the Sensitivity to Seesaw Predictions in Gauged $B-L$ Scenarios
/ Capozzi, Francesco (L'Aquila U. ; Gran Sasso) ; Dutta, Bhaskar (Texas A-M) ; Gurung, Gajendra (Texas U., Arlington ; CERN) ; Jang, Wooyoung (Texas U., Arlington) ; Shoemaker, Ian M. (Virginia Tech.) ; Thompson, Adrian (Northwestern U.) ; Yu, Jaehoon (Texas U., Arlington)
New gauge bosons coupled to heavy neutral leptons (HNLs) are simple and well-motivated extensions of the Standard Model. [...]
arXiv:2410.08981.
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Coherent elastic neutrino-nucleus scattering: Terrestrial and astrophysical applications
/ Abdullah, M. (Texas A-M) ; Abele, H. (Vienna, Tech. U., Atominst.) ; Akimov, D. (Moscow Phys. Eng. Inst.) ; Angloher, G. (Munich, Max Planck Inst.) ; Aristizabal Sierra, D. (Santa Maria U., Valparaiso ; Liege U.) ; Augier, C. (IP2I, Lyon) ; Balantekin, A.B. (Wisconsin U., Madison) ; Balogh, L. (Queen's U., Kingston) ; Barbeau, P.S. (Duke U. ; TUNL, Durham) ; Baudis, L. (Zurich U.) et al.
Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) is a process in which neutrinos scatter on a nucleus which acts as a single particle. [...]
arXiv:2203.07361.
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55 p.
Fermilab Library Server - eConf - Fulltext - Fulltext
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Neutrino Self-Interactions: A White Paper
/ Berryman, Jeffrey M. (Washington U., Seattle ; UC, Berkeley) ; Blinov, Nikita (Victoria U.) ; Brdar, Vedran (Fermilab ; Northwestern U.) ; Brinckmann, Thejs (INFN, Ferrara ; Ferrara U.) ; Bustamante, Mauricio (Bohr Inst.) ; Cyr-Racine, Francis-Yan (New Mexico U.) ; Das, Anirban (SLAC) ; de Gouvêa, André (Northwestern U.) ; Denton, Peter B. (Brookhaven Natl. Lab.) ; Dev, P.S. Bhupal (Washington U., St. Louis) et al.
Neutrinos are the Standard Model (SM) particles which we understand the least, often due to how weakly they interact with the other SM particles. Beyond this, very little is known about interactions among the neutrinos, i.e., their self-interactions. [...]
arXiv:2203.01955; CERN-TH-2022-024; DESY-22-035; FERMILAB-PUB-22-099-T.-
2023-06-09 - 39 p.
- Published in : Phys. Dark Univ.: 42 (2023) , pp. 101267
Fulltext: jt - PDF; 2203.01955 - PDF; External links: Fermilab Library Server; eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.101267
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Snowmass2021 Cosmic Frontier White Paper: Puzzling Excesses in Dark Matter Searches and How to Resolve Them
/ Leane, Rebecca K. (SLAC ; KIPAC, Menlo Park) ; Shin, Seodong (Jeonbuk Natl. U.) ; Yang, Liang (UC, San Diego) ; Adhikari, Govinda (UC, San Diego) ; Alhazmi, Haider (Jazan U.) ; Aramaki, Tsuguo (Northeastern U.) ; Baxter, Daniel (Fermilab) ; Calore, Francesca (Annecy, LAPTH) ; Caputo, Regina (NASA, Goddard) ; Cholis, Ilias (Oakland U.) et al.
Intriguing signals with excesses over expected backgrounds have been observed in many astrophysical and terrestrial settings, which could potentially have a dark matter origin. [...]
arXiv:2203.06859 ; FERMILAB-CONF-22-191-PPD-T.
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57 p.
Fermilab Library Server - eConf - Fulltext - Fulltext
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Mode Stability For Massless Scalars In Five-Dimensional Black Hole Backgrounds
/ Cvetic, M. (Pennsylvania U. ; Pennsylvania U., Dept. Math. ; Maribor U. ; CERN) ; Pope, C.N. (Texas A-M ; Cambridge U., DAMTP) ; Whiting, B.F. (Florida U.) ; Zhang, Haoyu (Texas A-M)
The mode stability of the Kerr black hole in four dimensions was demonstrated by Whiting in 1989, by separating the Teukolsky equation that describes gravitational perturbations and then transforming the radial and angular equations in such a way that the problem can be reformulated as a wave equation in an auxiliary spacetime in which the proof of stability is greatly simplified, owing to the absence of an ergoregion. As a preliminary step towards extending these ideas to higher-dimensional black holes, we study the mode stability of the massless scalar wave equation in the five-dimensional black hole solutions of Einstein gravity and supergravity. [...]
arXiv:2207.01653; UPR-1320-T; CERN-TH-2022-102; MI-HET-779.-
2022-11-14 - 22 p.
- Published in : Phys. Rev. D 106 (2022) 104026
Fulltext: 2207.01653 - PDF; Publication - PDF;
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Proton Decay: Flipped vs Unflipped SU(5)
/ Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Garcia, Marcos A.G. (Madrid, IFT) ; Nagata, Natsumi (Tokyo U. ; HARC, Woodlands ; Athens Academy) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.)
We analyze nucleon decay modes in a no-scale supersymmetric flipped SU(5) GUT model, and contrast them with the predictions for proton decays via dimension-6 operators in a standard unflipped supersymmetric SU(5) GUT model. We find that these GUT models make very different predictions for the ratios $\Gamma(p \to \pi^0 \mu^+)/\Gamma(p \to \pi^0 e^+)$, $\Gamma(p \to \pi^+ \bar{\nu})/\Gamma(p \to \pi^0 e^+)$, $\Gamma(p \to K^0 e^+)/\Gamma(p \to \pi^0 e^+)$ and $\Gamma(p \to K^0 \mu^+)/\Gamma(p \to \pi^0 \mu^+)$, and that predictions for the ratios $\Gamma(p \to \pi^0 \mu^+)/\Gamma(p \to \pi^0 e^+)$ and $\Gamma(p \to \pi^+ \bar{\nu})/\Gamma(p \to \pi^0 e^+)$ also differ in variants of the flipped SU(5) model with normal- or inverse-ordered light neutrino masses. [...]
arXiv:2003.03285; KCL-PH-TH/2020-10; CERN-TH-2020-031; UT-20-03; ACT-01-20; MI-TH-206, UMN-TH-3914/20; MI-TH-206,
UMN-TH-3914/20; FTPI-MINN-20/04; IFT-UAM/CSIC-20-36.-
2020-05-06 - 25 p.
- Published in : JHEP 2005 (2020) 021
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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De Sitter Vacua in No-Scale Supergravity
/ Ellis, John (King's Coll. London ; CERN) ; Nagaraj, Balakrishnan (Texas A-M) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.)
No-scale supergravity is the appropriate general framework for low-energy effective field theories derived from string theory. The simplest no-scale Kähler potential with a single chiral field corresponds to a compactification to flat Minkowski space with a single volume modulus, but generalizations to single-field no-scale models with de Sitter vacua are also known. [...]
arXiv:1809.10114; KCL-PH-TH/2018-52; CERN-TH/2018-206; CERN-TH-2018-206; ACT-01-18; MI-TH-1889; UMN-TH-3726/18; MI-TH-1889,
UMN-TH-3726/18; FTPI-MINN-18/15.-
2018-11-19 - 22 p.
- Published in : JHEP 11 (2018) 110
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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