Wed·Jun 18, 2025Wednesday·June 18, 2025

1. 01*

   Probing flavor effects in QCD showers with heavy-flavor jets

   Emma Yeats (on behalf of the ALICE Collaboration)🇺🇸

   Measurements of jet substructure provide precise tests of Quantum Chromodynamics (QCD) and offer a distinct way to study hadronization mechanisms, compared to measurements of hadrons alone. QCD predicts that jet radiation patterns depend on the mass and color charge of the initiating parton. Parton showers, in particular, are sensitive to the Casimir factors of quarks and gluons, as well as the parton mass due to the dead-cone effect. Three key charm-tagged jet measurements from the ALICE experiment are discussed.

   nucl-exhep-ex0 citations
2. 02*

   ${}^{117m}\mathrm{Sn}$ and ${}^{119m}\mathrm{Te}$ Production via Proton Bombardment on Natural Antimony and Implications for Modeling Charged Particle Reactions

   Catherine E. Apgar · Andrew S. Voyles · Jon C. Batchelder · Cathy S. Cutler · Morgan B. Fox · Yun-Hsuan Lee🇺🇸 · Dmitri G. Medvedev · Jonathan T. Morrell · Ellen M. O'Brien · Michael Skulski · C. Etienne Vermeulen · Lee A. Bernstein

   ${}^{117m}\mathrm{Sn}$ and ${}^{119}\mathrm{Sb}$, the latter of which is produced via a ${}^{119m}\mathrm{Te}$ generator, are promising radionuclides for the targeted treatment of both osteoarthritis and small mass tumors via Auger therapy. Experiments were conducted at Lawrence Berkeley National Laboratory, Los Alamos National Laboratory, and Brookhaven National Laboratory to measure the ${}^{\mathrm{nat}}\mathrm{Sb}$(p,x)${}^{117m}\mathrm{Sn}$ and ${}^{\mathrm{nat}}\mathrm{Sb}$(p,x)${}^{119m}\mathrm{Te}$ cross sections for incident proton energies up to 200 MeV. Additional measurements for co-produced isotopes are included as well. In addition to this dataset, this paper investigates improvements for proton-induced reaction modeling capabilities through comparison of these experimental dataset against theoretical models in TALYS 1.95. Parameter adjustments affecting level density, optical model potential, and pre-equilibrium emission were explored, with a goodness-of-fit metric established by the largest independent cross section channels and cross-validated with remaining channels.

   nucl-exPRC(2026)·0 citations
3. 03*

   Canadian Contributions to the Search for Neutrinoless Double Beta Decay

   Thomas Brunner🇨🇦 · Jason D. Holt🇨🇦 · David McKeen🇨🇦 · Alexander Wright🇨🇦

   The search for neutrinoless double beta decay has internationally been recognized as the most promising approach to determine the Majorana nature of neutrinos. This hypothesized decay would, if observed, violate lepton number in weak interactions by two units, hence, prove the existence of physics beyond the Standard Model. Current experiments with sensitivity to neutrinoless double beta decay half lives of $10^{26}$ years did not observe such a decay and worldwide efforts are ongoing to deploy experiments with half-life sensitivities beyond $10^{28}$ years. Canadian groups have been involved in this search for more than four decades. This article summarizes the historical experimental efforts and describes current Canadian contributions to neutrinoless double beta decay searches and their theoretical interpretation.

   nucl-exCan.J.Phys.(2025)·0 citations
4. 04*

   Deep-Inelastic Scattering at TeV Energies with LHC Muons

   Reinaldo Francener🇧🇷 · Victor P. Goncalves🇧🇷 · Felix Kling🇩🇪 · Peter Krack🇳🇱 · Juan Rojo🇳🇱

   The LHC far-forward experiments FASER and SND@LHC have pioneered the detection of TeV-energy neutrinos produced in hard-scattering proton-proton collisions at the LHC. In addition to neutrinos, an intense flux of TeV-energy muons reaches these detectors, representing a dominant background for both neutrino studies and beyond the Standard Model searches. Here we demonstrate that this forward muon flux enables a comprehensive neutral-current deep-inelastic scattering (DIS) program at FASER with a strong kinematical overlap with the Electron Ion Collider. For the Run 3 luminosity of ${\mathcal{L}}_{\mathrm{pp}}=250$~fb${}^{-1}$, more than $10^5$ inclusive muon DIS events, of which up to $10^4$ from charm production, are expected at FASER$\nu$. As a representative application, we demonstrate the sensitivity of muon DIS at FASER$\nu$ to probe the (intrinsic) charm content of the proton at large-$x$. We also provide predictions for event yields of muon DIS for future FASER runs and for the proposed Forward Physics Facility.

   ↳ hep-phhep-exnucl-exnucl-thEPJC(2025)·10 citations
5. 05*

   Phenomenological refinement of $p$-$d$ elastic scattering descriptions towards the 3NF study in nuclei via the ($p,pd$) reaction

   Yoshiki Chazono🇯🇵 · Tokuro Fukui · Futoshi Minato🇯🇵 · Yukinobu Watanabe · Kazuyuki Ogata🇯🇵

   The ($p,pd$) reaction is expected to be a powerful tool for probing three-nucleon forces (3NFs) in nuclear medium since it can be essentially regarded as the $p$-$d$ elastic scattering inside nuclei. One of the important points in the theoretical description of the ($p,pd$) reaction is to calculate the $p$-$d$ scattering in a nucleus quantitatively using effective interactions. This work aims to develop a phenomenological approach to improve the quantitativity of the $p$-$d$ scattering cross section in free space calculated with effective interactions. The $p$-$d$ elastic amplitude is decomposed into a 2N part, described using 2N effective interactions, and a residual part, which the 2N part cannot describe. The latter is approximated by a superposition of Legendre polynomials, with coefficients treated as adjustable parameters. These parameters are determined to reproduce experimental $p$-$d$ differential cross-section data at various incident energies. The obtained parameters exhibit smooth energy dependence, which is approximated by quadratic functions. The numerical results with the analytic energy dependence also reproduce the experimental data. The developed approach works well for improving the $p$-$d$ scattering cross section in a wide range of incident energies. This work can be regarded as the first step toward the description of ($p,pd$) reactions taking 3NF effect in nuclear medium into account.

   ↳ nucl-thnucl-ex0 citations
6. 06*

   A simulation model investigation of neutron-oxygen inelastic scattering and subsequent nucleus deexcitation based on experimental data

   Y. Hino🇯🇵 · Y. Ashida🇯🇵 · T. Tano🇯🇵 · Y. Koshio🇯🇵

   The nuclear interaction model plays an essential role in understanding neutrino-nucleus interactions in large-scale neutrino detectors. For example, in the Super-Kamiokande experiment, systematic uncertainties regarding atmospheric neutrino interactions on oxygen limit the sensitivity to some physics studies, such as the diffuse supernova neutrino background search. Reduction of such uncertainties necessitates an accurate modeling of nuclear reactions and subsequent nuclear deexcitation. For this purpose, a detailed study was performed by comparing various combinations of simulation models with the newly released neutron experimental data. From this study, it is found that the combination of INCL++ and NucDeEx implemented in a Geant4-based simulation shows a better agreement with the experimental data. The presented result will be referred to improve the future physics studies at neutrino detectors, including the current focus of Super-Kamiokande.

   ↳ hep-exnucl-exEPJC(2026)·5 citations
7. 07*

   Study of the beyond standard model interaction using Coherent Elastic Neutrino-Nucleus Scattering process

   S. P. Behera🇮🇳 · S. Panda🇮🇳 · D. K. Mishra🇮🇳

   We have conducted an extensive study that highlights the potential of the Indian Coherent Neutrino-nucleus Scattering Experiment (ICNSE) detector in constraining neutrino-quark interactions that go beyond the standard model. By utilizing reactors with varied core configurations and power outputs as sources for electron antineutrinos, and operating with a target mass of 10 kg over a year, our findings reveal that the ICNSE detector is remarkably effective in narrowing down the vast majority of the Non-standard Interaction (NSI) parameter space. Moreover, incorporating results from two distinct detectors, like sapphire and high-purity germanium, markedly enhances sensitivity by reducing the degeneracies between some pairs of NSI parameters to a smaller region.This research highlights its role in enabling future developments and investigations.

   ↳ hep-phhep-exnucl-exnucl-thJHEP(2026)·0 citations
8. 08*

   A New cw-NMR Q-meter for Dynamically Polarized Targets for Particle Physics

   J. D. Maxwell🇺🇸 · J. Brock🇺🇸 · C. Cuevas🇺🇸 · H. Dong · C. D. Keith🇺🇸 · J. J. Pierce🇺🇸

   Polarized solid targets produced via Dynamic Nuclear Polarization rely on Continuous-Wave Nuclear Magnetism Resonance measurements to accurately determine the degree of polarization of bulk samples polarized to nearly 100%. Since the late 1970's phase sensitive detection methods have been utilized to observe the magnetization of a sample as a small change in inductance under RF excitation near the Larmor frequency of the nuclear species of interest, using a device known as a Q-meter. Liverpool Q-meters, produced in the UK in the 80's and 90's, have been the workhorse devices for these targets for decades, however their age and scarcity has meant new systems are needed. We describe a Q-meter system designed and built at Jefferson Lab in the Liverpool style to have comparable electronic performance with several improvements to update and adapt the devices for modern use.

   ↳ physics.ins-detnucl-exNucl.Instrum.Meth.A(2026)·1 citation
9. 09*

   Simulation studies of the isovector reorientation effect of deuteron scattering on heavy target

   Baiting Tian🇨🇳 · Boyuan Zhang🇨🇳 · Dawei Si🇨🇳 · Sheng Xiao · Yijie Wang🇨🇳 · Tadaaki Isobe🇯🇵 · Hideaki Otsu🇯🇵 · Li Ou🇺🇸 · Zhigang Xiao🇨🇳

   The isovector reorientation (IVR) effect of deuteron scattering on heavy target provides a novel means to probe the nuclear isovector potential, which gives rise to the nuclear symmetry energy. The simulation studies on the experimental measurement of IVR effect using the SAMURAI terminal at RIKEN Nishina center have been performed to demonstrate the feasibility of the experiment. By introducing a well-designed polarimeter to detect the $\mathrm{p}(\vec{\mathrm{d}},\mathrm{d})\mathrm{p}$ elastic scattering, monitoring of the tensor polarization of the deuteron beam can be implemented. The protons and neutrons produced by the breakup of polarized deuterons scattering off heavy targets are designed to be measured by proton drift chamber (PDC) combined with the SAMURAI magnet and NEBULA detector, respectively. The detector responses are simulated using Geant4 framework, where the events of the deuteron elastic breakup are generated by an Improved Quantum Molecular Dynamics model. The results of reconstructing the deuteron breakup events demonstrate the feasibility of detecting the IVR effect at SAMURAI with both longitudinal and transverse tensor polarized deuteron beams with a polarization degree of approximately 80\%.

   ↳ physics.ins-detnucl-exnucl-thRadiat.Detect.Technol.Methods(2026)·0 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.