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$R^2$--Inflation Derived from 4d Strings, the Role of the Dilaton, and Turning the Swampland into a Mirage
/ Antoniadis, Ignatios (Chulalongkorn U. ; Paris, LPTHE) ; Nanopoulos, Dimitri V. (Athens Academy ; Texas A-M ; Athens U. ; HARC, Woodlands ; CERN) ; Olive, Keith A. (Minnesota U.)
Based on a previously derived superstring model possessing a cosmological sector that mimics Starobinsky inflation, we analyze several questions addressed in the recent literature: the generation of an effective $R^2$-term, the stability of the sgoldstino , the modular symmetry of the inflaton potential and the large distance swampland conjecture. [...]
UMN--TH--4402/24 ; FTPI--MINN--24/22 ; CERN-TH-2024-175 ; arXiv:2410.16541.
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Evolution of the nuclear spin-orbit splitting explored via the $^{32}$Si($d$,$p$)$^{33}$Si reaction using SOLARIS
/ Chen, J. (SUSTech, Shenzhen ; Argonne) ; Kay, B.P. (Argonne) ; Hoffman, C.R. (Argonne) ; Tang, T.L. (Argonne) ; Tolstukhin, I.A. (Argonne) ; Bazin, D. (Michigan State U.) ; Lubna, R.S. (Michigan State U.) ; Ayyad, Y. (Santiago de Compostela U., IGFAE) ; Beceiro-Novo, S. (Michigan State U.) ; Coombes, B.J. (Australian Natl. U., Canberra) et al.
The spin-orbit splitting between neutron 1$p$ orbitals at $^{33}$Si has been deduced using the single-neutron-adding ($d$,$p$) reaction in inverse kinematics with a beam of $^{32}$Si, a long-lived radioisotope. Reaction products were analyzed by the newly implemented SOLARIS spectrometer at the reaccelerated-beam facility at the National Superconducting Cyclotron Laboratory. [...]
arXiv:2404.05434.-
2024-04-29 - 10 p.
- Published in : Phys. Lett. B 853 (2024) 138678
Fulltext: 2404.05434 - PDF; Publication - PDF;
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Physics Opportunities at a Beam Dump Facility at PIP-II at Fermilab and Beyond
/ Aguilar-Arevalo, A.A. (Mexico U., ICN) ; Barrow, J.L. (Minnesota U.) ; Bhat, C. (Fermilab) ; Bogenschuetz, J. (Texas U., Arlington) ; Bonifazi, C. (ICAS, UNSAM, Buenos Aires ; Rio de Janeiro Federal U.) ; Bross, A. (Fermilab) ; Cervantes, B. (Mexico U., ICN) ; D'Olivo, J. (Mexico U., ICN) ; De Roeck, A. (CERN) ; Dutta, B. (Texas A-M) et al.
The Fermilab Proton-Improvement-Plan-II (PIP-II) is being implemented in order to support the precision neutrino oscillation measurements at the Deep Underground Neutrino Experiment, the U.S. [...]
arXiv:2311.09915 ; FERMILAB-FN-1242-AD-ND-PPD.
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TF07 Snowmass Report: Theory of Collider Phenomena
/ Maltoni, F. (Louvain U., CP3 ; INFN, Bologna ; U. Bologna, DIFA) ; Su, S. (Arizona U.) ; Thaler, J. (MIT, Cambridge, CTP ; IAIFI, Cambridge ; Harvard U.) ; Aarrestad, T.K. (CERN) ; Aboubrahim, A. (Munster U., ITP) ; Adhikari, S. (Kansas U. ; Johns Hopkins U.) ; Agapov, I. (DESY) ; Agashe, K. (Maryland U.) ; Agrawal, P. (Oxford U., Theor. Phys.) ; Airen, S. (Maryland U.) et al.
Theoretical research has long played an essential role in interpreting data from high-energy particle colliders and motivating new accelerators to advance the energy and precision frontiers. [...]
arXiv:2210.02591 ; FERMILAB-FN-1203-QIS.
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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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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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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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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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