Quantum state tomography, entanglement detection and Bell violation prospects in weak decays of massive particles

This paper presents a general method for reconstructing the spin density matrix of multi-particle systems from angular decay data using Bloch parameterization and Wigner-Weyl transforms, and applies it to Monte Carlo simulations of massive particle decays to propose measurements for detecting entanglement and Bell inequality violations.

Rachel Ashby-Pickering, Alan J. Barr, Agnieszka WierzchuckaWed, 11 Ma⚛️ quant-ph

Conceptual Design of a Novel Highly Granular Crystal Electromagnetic Calorimeter for Future Higgs Factories

This paper presents a conceptual design and simulation study of a novel high-granularity crystal electromagnetic calorimeter using orthogonally arranged scintillating bars and SiPMs, demonstrating an energy resolution of $1.12\%/\sqrt{E(\mathrm{GeV})}\oplus0.22\%$ that significantly exceeds the requirements for precision measurements at future Higgs factories.

Baohua Qi, Fangyi Guo, Shu Li, Yong Liu, Manqi Ruan, Weizheng Song, Shengsen Sun, Yifang Wang, Yuexin Wang, Haijun Yang, Yang Zhang, Zhiyu ZhaoTue, 10 Ma🔬 physics

Photon reconstruction using the Hough transform in imaging calorimeters

This paper presents an energy-core-based photon reconstruction method utilizing the Hough transform, which achieves near-perfect efficiency and separation for high-energy photons in dense environments, as validated by simulations of the CEPC crystal electromagnetic calorimeter.

Yang Zhang (Institute of High Energy Physics, Beijing, China, University of Chinese Academy of Sciences, Beijing, China), Shengsen Sun (Institute of High Energy Physics, Beijing, China, High Energy Research Center, Henan Academy of Sciences, Zhengzhou, China), Weizheng Song (Institute of High Energy Physics, Beijing, China, University of Chinese Academy of Sciences, Beijing, China), Fangyi Guo (Institute of High Energy Physics, Beijing, China, China Center of Advanced Science and Technology, Beijing China), Yuanzhan Wang (Institute of High Energy Physics, Beijing, China, University of Chinese Academy of Sciences, Beijing, China), Linghui Wu (Institute of High Energy Physics, Beijing, China, High Energy Research Center, Henan Academy of Sciences, Zhengzhou, China), Yifang Wang (Institute of High Energy Physics, Beijing, China, High Energy Research Center, Henan Academy of Sciences, Zhengzhou, China)Tue, 10 Ma🔬 physics

Broad frequency tuning of a Nb3_{3}Sn superconducting microwave cavity for dark matter searches

This paper demonstrates a novel "tuning-by-opening" mechanism for a Nb3_3Sn superconducting microwave cavity that achieves continuous frequency tuning exceeding 1 GHz while maintaining a high quality factor suitable for dark matter searches, all without inserting elements into the resonant volume.

D. Maiello, R. Di Vora, D. Ahn, G. Carugno, R. Cervantes, B. Giaccone, A. Ortolan, S. Posen, G. Ruoso, G. Sardo Infirri, B. Tennis, S. Tocci, C. BraggioTue, 10 Ma🔬 physics

Characterization of the Low Energy Excess using a NUCLEUS Al2O3Al_2O_3 detector

The NUCLEUS experiment characterizes the unidentified low energy excess in its sapphire detector by demonstrating that the excess rate is independent of particle background levels but decreases with slower cooling procedures, following a universal power-law decay over time.

H. Abele (NUCLEUS Collaboration), G. Angloher (NUCLEUS Collaboration), B. Arnold (NUCLEUS Collaboration), M. Atzori Corona (NUCLEUS Collaboration), A. Bento (NUCLEUS Collaboration), E. Bossio (NUCLEUS Collaboration), F. Buchsteiner (NUCLEUS Collaboration), J. Burkhart (NUCLEUS Collaboration), F. Cappella (NUCLEUS Collaboration), M. Cappelli (NUCLEUS Collaboration), N. Casali (NUCLEUS Collaboration), R. Cerulli (NUCLEUS Collaboration), A. Cruciani (NUCLEUS Collaboration), G. Del Castello (NUCLEUS Collaboration), M. del Gallo Roccagiovine (NUCLEUS Collaboration), S. Dorer (NUCLEUS Collaboration), A. Erhart (NUCLEUS Collaboration), M. Friedl (NUCLEUS Collaboration), S. Fichtinger (NUCLEUS Collaboration), V. M. Ghete (NUCLEUS Collaboration), M. Giammei (NUCLEUS Collaboration), C. Goupy (NUCLEUS Collaboration), J. Hakenmüller (NUCLEUS Collaboration), D. Hauff (NUCLEUS Collaboration), F. Jeanneau (NUCLEUS Collaboration), E. Jericha (NUCLEUS Collaboration), M. Kaznacheeva (NUCLEUS Collaboration), H. Kluck (NUCLEUS Collaboration), A. Langenkämper (NUCLEUS Collaboration), T. Lasserre (NUCLEUS Collaboration), D. Lhuillier (NUCLEUS Collaboration), M. Mancuso (NUCLEUS Collaboration), R. Martin (NUCLEUS Collaboration), B. Mauri (NUCLEUS Collaboration), A. Mazzolari (NUCLEUS Collaboration), L. McCallin (NUCLEUS Collaboration), H. Neyrial (NUCLEUS Collaboration), C. Nones (NUCLEUS Collaboration), L. Oberauer (NUCLEUS Collaboration), L. Peters (NUCLEUS Collaboration), F. Petricca (NUCLEUS Collaboration), W. Potzel (NUCLEUS Collaboration), F. Pröbst (NUCLEUS Collaboration), F. Pucci (NUCLEUS Collaboration), F. Reindl (NUCLEUS Collaboration), M. Romagnoni (NUCLEUS Collaboration), J. Rothe (NUCLEUS Collaboration), N. Schermer (NUCLEUS Collaboration), J. Schieck (NUCLEUS Collaboration), S. Schönert (NUCLEUS Collaboration), C. Schwertner (NUCLEUS Collaboration), L. Scola (NUCLEUS Collaboration), G. Soum-Sidikov (NUCLEUS Collaboration), L. Stodolsky (NUCLEUS Collaboration), A. Schröder (NUCLEUS Collaboration), R. Strauss (NUCLEUS Collaboration), R. Thalmeier (NUCLEUS Collaboration), C. Tomei (NUCLEUS Collaboration), L. Valla (NUCLEUS Collaboration), M. Vignati (NUCLEUS Collaboration), M. Vivier (NUCLEUS Collaboration), A. Wallach (NUCLEUS Collaboration), P. Wasser (NUCLEUS Collaboration), A. Wex (NUCLEUS Collaboration), L. Wienke (NUCLEUS Collaboration)Tue, 10 Ma🔬 physics

First Optical Observation of Negative Ion Drift at Surface Pressure

This paper reports the first optical observation of negative ion drift at surface pressure in a He:CF4_4:SF6_6 mixture using an optically read-out TPC, demonstrating multi-species ion transport and validating the feasibility of large-scale, low-diffusion optical TPCs for rare event searches.

F. D. Amaro, R. Antonietti, E. Baracchini, L. Benussi, C. Capoccia, M. Caponero, L. G. M. de Carvalho, G. Cavoto, I. A. Costa, A. Croce, M. D'Astolfo, G. D'Imperio, G. Dho, F. Di Giambattista, E. Di Marco, J. M. F. dos Santos, D. Fiorina, F. Iacoangeli, Z. Islam, H. P. Lima Jr., G. Maccarrone, R. D. P. Mano, D. J. G. Marques, G. Mazzitelli, P. Meloni, A. Messina, C. M. B. Monteiro, R. A. Nobrega, I. F. Pains, E. Paoletti, F. Petrucci, S. Piacentini, D. Pierluigi, D. Pinci, A. A. Prajapati, F. Renga, A. Russo, G. Saviano, P. A. O. C. Silva, N. J. C. Spooner, R. Tesauro, S. Tomassini, S. Torelli, D. TozziTue, 10 Ma🔬 physics

End-to-end Differentiable Calibration and Reconstruction for Optical Particle Detectors

This paper introduces the first end-to-end differentiable optical particle detector simulator that unifies simulation, calibration, and reconstruction into a single gradient-based framework, demonstrating improved accuracy, speed, and flexibility for analyzing large-scale neutrino detectors compared to traditional methods.

Omar Alterkait, César Jesús-Valls, Ryo Matsumoto, Patrick de Perio, Kazuhiro TeraoTue, 10 Ma🤖 cs.LG

Two body nonleptonic decays of ΩbΩc\Omega_{b}\rightarrow \Omega_{c} beyond tree level

This paper investigates the two-body nonleptonic decays of Ωb\Omega_{b} into Ωc\Omega_{c} accompanied by pseudoscalar or vector mesons using the naive factorization approach, calculating decay amplitudes across various topologies to determine rates and branching ratios for comparison with other theoretical predictions and experimental data.

Z. Neishabouri, K. Azizi, H. R. MoshfeghTue, 10 Ma⚛️ hep-ph

Double Bangs at IceCube as a Window to the Neutrino Mass Origin

This paper demonstrates that renormalization group running of the PMNS matrix, enhanced by light neutrinophilic new particles in low-scale neutrino mass models, can significantly increase the rate of high-energy "double bang" events at IceCube, making these signatures comparable to standard model predictions and offering a potential window into the origin of neutrino mass.

Samiur R. Mir, Carlos A. Argüelles, K. S. Babu, Vedran BrdarTue, 10 Ma⚛️ hep-ph

Constraining AZHA\to ZH with HttˉH\to t\bar t in the Low-Mass Region

This paper constrains the AZHA\to ZH process with HttˉH\to t\bar t in the low-mass region by recasting Standard Model ttˉZt\bar tZ measurements, establishing cross-section limits between 0.12 and 0.62 pb while identifying a notable preference for a new physics signal around mA450m_A \approx 450 GeV and mH290m_H \approx 290 GeV that can be accommodated within a top-philic two-Higgs-doublet model.

Saiyad Ashanujjaman, Guglielmo Coloretti, Andreas Crivellin, Siddharth P. Maharathy, Bruce MelladoTue, 10 Ma⚛️ hep-ph

Scattering of non-relativistic finite-size particles and puffy dark matter direct detection

This paper investigates the scattering of non-relativistic finite-size particles using the partial wave method to demonstrate how particle size significantly alters interaction potentials and cross sections, revealing non-perturbative effects in puffy dark matter direct detection that depend on the size-to-range ratio and offering stability-based constraints for nugget-type dark matter.

Wu-Long Xu, Jin Min Yang, Jun ZhaoTue, 10 Ma⚛️ hep-ph