Article
Physics, Particles & Fields
M. Agostini, G. Araujo, A. M. Bakalyarov, M. Balata, I Barabanov, L. Baudis, C. Bauer, E. Bellotti, S. Belogurov, A. Bettini, L. Bezrukov, V Biancacci, E. Bossio, V Bothe, V Brudanin, R. Brugnera, A. Caldwell, C. Cattadori, A. Chernogorov, T. Comellato, V D'Andrea, E. Demidova, N. Di Marco, E. Doroshkevich, F. Fischer, M. Fomina, A. Gangapshev, A. Garfagnini, C. Gooch, P. Grabmayr, V Gurentsov, K. Gusev, J. Hakenmueller, S. Hemmer, W. Hofmann, J. Huang, M. Hult, L. Inzhechik, J. Janicsko Csathy, J. Jochum, M. Junker, V Kazalov, Y. Kermaidic, H. Khushbakht, T. Kihm, I. Kirpichnikov, A. Klimenko, R. Kneissl, K. T. Knoepfle, O. Kochetov, V. N. Kornoukhov, P. Krause, V. V. Kuzminov, M. Laubenstein, M. Lindner, I Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, L. Manzanillas, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, Y. Mueller, I Nemchenok, L. Pandola, K. Pelczar, L. Pertoldi, P. Piseri, A. Pullia, C. Ransom, L. Rauscher, S. Riboldi, N. Rumyantseva, C. Sada, F. Salamida, S. Schoenert, J. Schreiner, M. Schuett, A-K Schuetz, O. Schulz, M. Schwarz, B. Schwingenheuer, O. Selivanenko, E. Shevchik, M. Shirchenko, L. Shtembari, H. Simgen, A. Smolnikov, D. Stukov, A. A. Vasenko, A. Veresnikova, C. Vignoli, K. von Sturm, T. Wester, C. Wiesinger, M. Wojcik, E. Yanovich, B. Zatschler, I Zhitnikov, S. Zhukov, D. Zinatulina, A. Zschocke, A. J. Zsigmond, K. Zuber, G. Zuzel
Summary: The study reports on the characterization and testing of five Ge-76 IC detectors, confirming their performance and feasibility. These IC detectors combine the large mass of traditional Ge detectors with the superior resolution and pulse shape discrimination power of point contact detectors. After 18 months of operation, it was found that IC detectors show satisfactory performance in the Gerda experiment.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Multidisciplinary Sciences
Changfeng Jiao, Cenxi Yuan, Jiangming Yao
Summary: In this study, we investigate the correlation between the neutrinoless double-beta decay nuclear matrix element (NME) and electric quadrupole (E2) strength using the Hamiltonian-based generator-coordinate method. Our calculations reveal a clear anti-correlation between the NME and the transition rate of collective quadrupole excitation, particularly in the decay from a weakly deformed parent nucleus to a more deformed grand-daughter nucleus. This interrelation could potentially help reduce the uncertainty of the nuclear matrix element.
Article
Physics, Nuclear
Y. K. Wang, P. W. Zhao, J. Meng
Summary: The study investigates the nuclear matrix elements of neutrinoless double-beta decay for nuclei Ge-76, Se-82, Mo-100, Te-130, and Nd-150, incorporating triaxial deformation and quasiparticle configuration mixing. It shows that the effects of quasiparticle configuration mixing and transitions through odd-odd intermediate states have significant impacts on the nuclear matrix elements, while the variation in triaxial deformation also plays a crucial role in determining the matrix elements.
Article
Physics, Multidisciplinary
Y. Ayyad, W. Mittig, T. Tang, B. Olaizola, G. Potel, N. Rijal, N. Watwood, H. Alvarez-Pol, D. Bazin, M. Caamano, J. Chen, M. Cortesi, B. Fernandez-Dominguez, S. Giraud, P. Gueye, S. Heinitz, R. Jain, B. P. Kay, E. A. Maugeri, B. Monteagudo, F. Ndayisabye, S. N. Paneru, J. Pereira, E. Rubino, C. Santamaria, D. Schumann, J. Surbrook, L. Wagner, J. C. Zamora, V Zelevinsky
Summary: A narrow near-threshold proton-emitting resonance (E-x = 11.4 MeV, J(pi) = 1/2(+), and Gamma(p) = 4.4 keV) was directly observed in B-11 via proton resonance scattering. The good agreement between both experimental results confirms the existence of such exotic decay and the particular behavior of weakly bound nuclei coupled to the continuum.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Nuclear
P. Novella, M. Sorel, A. Uson, C. Adams, H. Almazan, V Alvarez, B. Aparicio, A. Aranburu, L. Arazi, I. J. Arnquist, S. Ayet, C. D. R. Azevedo, K. Bailey, F. Ballester, J. M. Benlloch-Rodriguez, F. I. G. M. Borges, S. Bounasser, N. Byrnes, S. Carcel, J. Carrion, S. Cebrian, E. Church, C. A. N. Conde, T. Contreras, F. P. Cossio, A. A. Denisenko, G. Diaz, J. Diaz, T. Dickel, J. Escada, R. Esteve, A. Fahs, R. Felkai, L. M. P. Fernandes, P. Ferrario, A. L. Ferreira, F. W. Foss, E. D. C. Freitas, Z. Freixa, J. Generowicz, A. Goldschmidt, J. J. Gomez-Cadenas, R. Gonzalez, D. Gonzalez-Diaz, R. Guenette, R. M. Gutierrez, J. Haefner, K. Hafidi, J. Hauptman, C. A. O. Henriques, J. A. Hernando Morata, P. Herrero-Gomez, V Herrero, J. Ho, Y. Ifergan, B. J. P. Jones, M. Kekic, L. Labarga, A. Laing, L. Larizgoitia, P. Lebrun, D. Lopez Gutierrez, N. Lopez-March, M. Losada, R. D. P. Mano, J. Martin-Albo, A. Martinez, G. Martinez-Lema, M. Martinez-Vara, A. D. McDonald, Z. E. Meziani, K. Mistry, F. Monrabal, C. M. B. Monteiro, F. J. Mora, J. Munoz Vidal, K. Navarro, D. R. Nygren, E. Oblak, M. Odriozola-Gimeno, B. Palmeiro, A. Para, J. Perez, M. Querol, A. Raymond, A. B. Redwine, J. Renner, L. Ripoll, I Rivilla, Y. Rodriguez Garcia, J. Rodriguez, C. Rogero, L. Rogers, B. Romeo, C. Romo-Luque, F. P. Santos, J. M. F. dos Santos, A. Simon, C. Stanford, J. M. R. Teixeira, P. Thapa, J. F. Toledo, J. Torrent, J. F. C. A. Veloso, T. T. Vuong, R. Webb, J. T. White, K. Woodruff, N. Yahlali
Summary: We report a measurement of the half-life of the Xe-136 two-neutrino double-beta decay using a novel direct-background-subtraction technique. The analysis is based on data collected with the NEXT-White detector and the topology of double-electron tracks. The presented technique demonstrates the feasibility of background-model-independent neutrinoless double-beta-decay searches.
Article
Physics, Nuclear
Qi-Jun Zhi, Xiao-Ping Zhang, Ji-Lin You, Qiang Zheng, Zhong-Zhou Ren
Summary: A systematic analysis on the experimental data of nuclear double-beta decay half-lives is performed using an improved analytical formula, showing good agreement with known ground-state transitions. Further predictions are made for decay candidates above 0.5 MeV, emphasizing the importance of experimental measurements for understanding double-beta decay mechanisms and studying shell effects on nuclear transitions.
Article
Physics, Nuclear
A. M. Romero, J. M. Yao, B. Bally, T. R. Rodriguez, J. Engel
Summary: The generator coordinate method uses a variational construction of nonorthogonal mean-field states to select important subsets for accurate calculations, such as in the case of neutrinoless double-beta decay matrix element calculations for Ge-76.
Article
Physics, Particles & Fields
S. P. Baranov, B. Z. Kopeliovich
Summary: The production of hadrons with two charmed quarks in pp and ee collisions was studied, comparing the fragmentation approach with the full calculation. It was found that non-fragmentation contributions remain significant even at smaller transverse momenta.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Astronomy & Astrophysics
Wael Elkamhawy, Zichao Yang, Hans-Werner Hammer, Lucas Platter
Summary: The research team calculated the rate of the rare decay Be-11 into Be-10 + p + e(-) + (nu) over bar (e) using Halo effective field theory to describe beta-delayed proton emission. They assumed a resonance in the Be-10-p system consistent with a recent experiment, obtaining a branching ratio and predicting a resonance width. The experimental results and resonance parameters were found to be consistent, and it was demonstrated that no exotic mechanisms are needed to explain the experimental decay rate.
Article
Astronomy & Astrophysics
V. Yu. Denisov
Summary: This article discusses the model for the simultaneous emission of two alpha-particles from the opposite sides of the nucleus (double alpha-decay) in detail. The 32 smallest values of the half-lives of double alpha-decay for nuclei are calculated. It is shown that the half-lives of double alpha-decay are much shorter than the emission of 8Be cluster with sequential decay into two alpha-particles. The results suggest that measuring this decay is possible in accelerator experiments by forming proton-rich nuclei.
Article
Physics, Multidisciplinary
Yu-Dong Zhang, Wen-Long Sang, Hong-Fei Zhang
Summary: In this letter, the exclusive decay of Upsilon into J=psi in association with eta c (chi c0;1;2) is studied. The decay widths for different helicity configurations are calculated within the nonrelativistic QCD framework and the QCD corrections are found to mitigate the renormalization scale dependence. The results of the branching fractions for most processes are in agreement with experiments, except for one process where tension exists between theory and experiment. The J=psi polarization is found to be independent of nonperturbative parameters and all processes can be measured at Super B factory with high luminosity.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
I. J. Arnquist, F. T. Avignone III, A. S. Barabash, C. J. Barton, P. J. Barton, K. H. Bhimani, E. Blalock, B. Bos, M. Busch, M. Buuck, T. S. Caldwell, Y-d. Chan, C. D. Christofferson, P. -h. Chu, M. L. Clark, C. Cuesta, J. A. Detwiler, Yu. Efremenko, H. Ejiri, S. R. Elliott, G. K. Giovanetti, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, C. R. Haufe, R. Henning, D. Hervas Aguilar, E. W. Hoppe, A. Hostiuc, M. F. Kidd, I. Kim, R. T. Kouzes, A. Li, A. M. Lopez, J. M. Lopez-Castano, E. L. Martin, R. D. Martin, R. Massarczyk, S. J. Meijer, S. Mertens, T. K. Oli, G. Othman, L. S. Paudel, W. Pettus, A. W. P. Poon, D. C. Radford, A. L. Reine, K. Rielage, N. W. Ruof, D. C. Schaper, D. Tedeschi, R. L. Varner, S. Vasilyev, J. F. Wilkerson, C. Wiseman, W. Xu, C. -h. Yu, B. X. Zhu
Summary: The MAJORANA DEMONSTRATOR conducted a search for neutrinoless double-beta decay (0 nu beta beta) in 76Ge using modular arrays of high-purity Ge detectors operated in vacuum cryostats within a low-background shield. The arrays consisted of up to 40.4 kg of detectors, with 27.2 kg enriched to approximately 88% in 76Ge. Through these measurements, the DEMONSTRATOR achieved an accumulated active exposure of 64.5 kg yr. By achieving a world-leading energy resolution of 2.52 keV FWHM at the 2039 keV Q beta beta (0.12%), we established a half-life limit for 0 nu beta beta in 76Ge at T1/2 > 8.3 x 1025 yr (90% C.L.). This result provides upper limits on m beta beta ranging from (113-269) meV (90% C.L.), depending on the choice of nuclear matrix elements.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Nuclear
C. Augier, A. S. Barabash, F. Bellini, G. Benato, M. Beretta, L. Berge, J. Billard, Yu. A. Borovlev, L. Cardani, N. Casali, A. Cazes, M. Chapellier, D. Chiesa, I. Dafinei, F. A. Danevich, M. De Jesus, T. Dixon, L. Dumoulin, K. Eitel, F. Ferri, B. K. Fujikawa, J. Gascon, L. Gironi, A. Giuliani, V. D. Grigorieva, M. Gros, D. L. Helis, H. Z. Huang, R. Huang, L. Imbert, J. Johnston, A. Juillard, H. Khalife, M. Kleifges, V. V. Kobychev, Yu. G. Kolomensky, S. Konovalov, J. Kotila, P. Loaiza, L. Ma, E. P. Makarov, P. de Marcillac, R. Mariam, L. Marini, S. Marnieros, X. -F. Navick, C. Nones, E. B. Norman, E. Olivieri, J. L. Ouellet, L. Pagnanini, L. Pattavina, B. Paul, M. Pavan, H. Peng, G. Pessina, S. Pirro, D. Poda, O. G. Polischuk, S. Pozzi, E. Previtali, Th. Redon, A. Rojas, S. Rozov, V. Sanglard, J. A. Scarpaci, B. Schmidt, Y. Shen, V. N. Shlegel, V. Singh, C. Tomei, V. I. Tretyak, V. I. Umatov, L. Vagneron, M. Velazquez, B. Welliver, L. Winslow, M. Xue, E. Yakushev, M. Zarytskyy, A. S. Zolotarova
Summary: The CUPID-Mo experiment was conducted in Modane, France, to demonstrate the CUPID technology. By studying the LMO calorimeters, it was found that Mo-100 undergoes two-neutrino and neutrinoless double-beta decays to the excited states of Ru-100. The measured half-life for the two-neutrino decay to the 0(1)(+) state was (7.5 +/- 1 0.8 (stat.)(-0.3)(+0.4)) x 10(20) years, and new limits were set for other decay modes.
Article
Astronomy & Astrophysics
Dmitry Gorbunov, Igor Krasnov, Yury Kudenko, Sergey Suvorov
Summary: In this study, we calculated the production of hypothetical millicharged particles (MCPs) of sub-GeV masses by the J-PARC proton beam in the context of T2K and future T2HK neutrino oscillation experiments. By focusing on a specific region of model parameter space where an MCP can hit the near neutrino detector twice, we used this background-free signature to estimate the sensitivity of T2K and T2HK experiments to MCPs. Our findings show that a previously inaccessible region of charges 5x10(-4)-10(-2) e for MCP masses 0.1-0.5 GeV can be investigated.
Article
Physics, Multidisciplinary
Jing Yang, Adolfo del Campo
Summary: The exchange operator formalism is used to describe many-body integrable systems in terms of phase-space variables. We establish an equivalence between models described by this formalism and the infinite family of parent Hamiltonians describing quantum many-body models with Jastrow form ground states. This allows us to identify the invariants of motion and establish integrability for any model in the family.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
R. Crespo, A. Arriaga, R. B. Wiringa, E. Cravo, A. Mecca, A. Deltuva
Article
Astronomy & Astrophysics
A. Baroni, J. Carlson, R. Gupta, Andy C. Y. Li, G. N. Perdue, A. Roggero
Summary: The calculation of dynamic response functions is expected to benefit from rapidly developing quantum hardware resources and offers potential applications in analyzing real-time quantities of strongly correlated quantum systems. The calculation of response functions for fermionic systems at moderate momenta and energies is a promising early application due to nearly local relevant operators and the ability to resolve energies in moderately short real time.
Article
Physics, Nuclear
I. Stetcu, A. Baroni, J. Carlson
Summary: We explore the preparation of specific nuclear states on gate-based quantum hardware using variational algorithms. Quantum computing can, in principle, solve large-scale nuclear systems with exponentially fewer resources than classical computing. We use the unitary coupled cluster approach to construct approximations of the ground-state vectors. However, the application on existing hardware is challenging due to the need for minimizing a large number of parameters and using a large number of entanglements.
Article
Astronomy & Astrophysics
Joshua D. Martin, A. Roggero, Huaiyu Duan, J. Carlson, V Cirigliano
Summary: This paper investigates coherent quantum neutrino oscillations in extreme astrophysical environments, comparing mean-field and many-body evolutions to reveal their relationships, and discovers intriguing connections between quantum information measures and the behavior of physical observables.
Article
Physics, Nuclear
A. Lovato, I Bombaci, D. Logoteta, M. Piarulli, R. B. Wiringa
Summary: In this study, we obtained the equation of state of infinite neutron matter using highly realistic Hamiltonians and benchmarked three independent many-body methods. The results show that these methods provide similar equations of state when specific nucleon-nucleon potentials and three-body forces are used. However, at high densities, one method shows significantly lower energy compared to the others. The study also highlights the possibility of unphysical results when certain parameters are used in the calculations.
Article
Physics, Nuclear
Lorenzo Andreoli, Joseph Carlson, Alessandro Lovato, Saori Pastore, Noemi Rocco, R. B. Wiringa
Summary: In this study, we perform calculations and comparisons on electron-nucleus scattering on 3He and 3H using different methods and compare them to experimental data. The results show that at sufficiently large values of momentum transfer, the Green's function Monte Carlo calculation agrees well with experimental data and two other methods. The inclusion of relativistic effects is crucial in explaining data at high momentum and energy transfer.
Article
Physics, Multidisciplinary
R. Cruz-Torres, D. Lonardoni, R. Weiss, M. Piarulli, N. Barnea, D. W. Higinbotham, E. Piasetzky, A. Schmidt, L. B. Weinstein, R. B. Wiringa, O. Hen
Summary: This study reveals a universal factorization of the many-body nuclear wave function at short distances, highlighting the embedding of short-distance correlation effects within two-body correlations. The ratio of contact coefficients between different nuclei shows little dependence on the nuclear interaction model.
Article
Physics, Nuclear
M. C. Atkinson, W. H. Dickhoff, M. Piarulli, A. Rios, R. B. Wiringa
Article
Physics, Nuclear
G. B. King, L. Andreoli, S. Pastore, M. Piarulli, R. Schiavilla, R. B. Wiringa, J. Carlson, S. Gandolfi
Article
Physics, Nuclear
M. Piarulli, I Bombaci, D. Logoteta, A. Lovato, R. B. Wiringa
Article
Physics, Nuclear
J. Chen, K. Auranen, M. L. Avila, B. B. Back, M. A. Caprio, C. R. Hoffman, D. Gorelov, B. P. Kay, S. A. Kuvin, Q. Liu, J. L. Lou, A. O. Macchiavelli, D. G. McNeel, T. L. Tang, D. Santiago-Gonzalez, R. Talwar, J. Wu, G. Wilson, R. B. Wiringa, Y. L. Ye, C. X. Yuan, H. L. Zang
Article
Physics, Nuclear
V Cirigliano, W. Dekens, J. de Vries, M. L. Graesser, E. Mereghetti, S. Pastore, M. Piarulli, U. van Kolck, R. B. Wiringa
Article
Physics, Nuclear
R. Schiavilla, A. Baroni, S. Pastore, M. Piarulli, L. Girlanda, A. Kievsky, A. Lovato, L. E. Marcucci, Steven C. Pieper, M. Viviani, R. B. Wiringa
Article
Physics, Nuclear
S. Pastore, J. Carlson, S. Gandolfi, R. Schiavilla, R. B. Wiringa
