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Recently, two dark matter direct detection experiments have announced the first indications of nuclear recoils from solar $^8$B neutrinos via coherent elastic neutrino-nucleus scattering (CE$\nu$NS) with xenon nuclei. These results…

High Energy Physics - Phenomenology · Physics 2025-05-12 Valentina De Romeri , Dimitrios K. Papoulias , Christoph A. Ternes

In our calculation of neutron star crust heating we include several key new model features. In earlier work electron capture (EC) only allowed neutron emission from the daughter ground-state; here we calculate, in a deformed QRPA model, EC…

Astrophysics · Physics 2008-12-18 Sanjib S. Gupta , Toshihiko Kawano , Peter Möller

Nuclear reactors represent a promising neutrino source for CE$\nu$NS (coherent-elastic neutrino-nucleus scattering) searches. However, reactor sites also come with high ambient neutron flux. Neutron capture-induced nuclear recoils can…

High Energy Physics - Experiment · Physics 2024-03-19 A. J. Biffl , A. Gevorgian , K. Harris , A. N. Villano

The kinematic lower bound for the single scattering of neutrons produced in DT fusion reactions produces a backscatter edge in the measured neutron spectrum. The energy spectrum of backscattered neutrons is dependent on the scattering ion…

A new theoretical framework, based on the quantum field theory of open systems applied to neutrinos, has been developed to describe the neutrino evolution in external environments accounting for the effect of the neutrino quantum…

High Energy Physics - Phenomenology · Physics 2020-03-11 Konstantin Stankevich , Alexander Studenikin

Geant4-based simulations of the energy deposited by electrons in various materials are quantitatively compared to high precision calorimetric measurements taken at Sandia Laboratories. The experimental data concern electron beams of energy…

Computational Physics · Physics 2015-06-16 Matej Batic , Gabriela Hoff , Maria Grazia Pia , Paolo Saracco , Georg Weidenspointner

We extend the recently proposed mechanism for inducing low energy nuclear reactions (LENR) to compute the reaction rate of deuteron with a heavy nucleus. The process gets dominant contribution at second order in the time dependent…

Nuclear Theory · Physics 2024-07-23 Pankaj Jain , Harishyam Kumar , K. Ramkumar

The spallation-neutron yield was studied experimentally by bombarding a thick lead target with 400 MeV/u carbon beam. The data were obtained with the activation analysis method using foils of Au, Mn, Al, Fe and In. The yields of produced…

Our recent neutron scattering measurements of phonons and magnons in solid \alpha-oxygen have led us to a new understanding of the production mechanismen of ultra-cold-neutrons (UCN) in this super-thermal converter. The UCN production in…

Nuclear Experiment · Physics 2015-05-14 E. Gutsmiedl , A. Frei , F. Boehle , A. Maier , S. Paul , H. Schober , A. Orecchini

The perturbation method is proposed to obtain the effective delayed neutron fraction (\b{eta}eff) of a cylindrical highly enriched uranium reactor. Based on the reactivity measurements with and without a sample at a designable position…

Instrumentation and Detectors · Physics 2016-03-15 Hao-Jun Zhou , Yan-Peng Yin , Xiao-Qiang Fan , Zheng-Hong Li , Yi-Kang Pu

Understanding nuclear effects is essential for improving the sensitivity of neutrino oscillation measurements. Validating nuclear models solely through neutrino scattering data is challenging due to limited statistics and the broad energy…

High Energy Physics - Phenomenology · Physics 2025-02-25 Seisho Abe

Radiation background studies pertaining to $0\nu\beta\beta$ decay in $^{124}$Sn have been carried out. A TiLES setup has been installed at TIFR for this purpose. Neutron-induced background is studied in the TIN.TIN detector materials using…

Instrumentation and Detectors · Physics 2015-04-22 Neha Dokania , V. Singh , C. Ghosh , S. Mathimalar , A. Garai , S. Pal , V. Nanal , R. G. Pillay , A. Shrivastava , K. G. Bhushan

The accurate description of nuclear $\beta^{-}$-decay has far-reaching consequences for applications spanning nuclear reactors to the creation of heavy elements in astrophysical environments. We present the nuclear particle spectra…

Nuclear Theory · Physics 2025-07-08 M. R. Mumpower , T. Kawano , O. Korobkin , G. W. Misch , T. M. Sprouse

The measured and evaluated excitation functions are fundamental quantities that affect the accuracy of all calculations in nuclear applications. Some cross sections, such as 14N(n,p)14C, have added value for special applications, as these…

Neutrons produced by cosmic muon interactions are important contributors to backgrounds in underground detectors when searching for rare events. Typically such neutrons can dominate the background, as they are particularly difficult to…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 A Empl , E. V. Hungerford , R. Jasim , P. Mosteiro

The explosion of a white dwarf of mass 1.36 M$_\odot$ has been simulated in three dimensions with the aid of a SPH code. The explosion follows the delayed detonation paradigma. In this case the deflagration-detonation transition is induced…

Astrophysics · Physics 2009-11-07 Domingo Garcia-Senz , Eduardo Bravo

We investigate neutrino induced one pion production on nucleons. The elementary neutrino--nucleon cross section is calculated as the sum of the leading Delta pole diagram and several background diagrams obtained within the non-linear sigma…

High Energy Physics - Phenomenology · Physics 2010-11-11 Olga Lalakulich , Tina Leitner , Oliver Buss , Ulrich Mosel

We examine medium-enhanced, neutrino scattering-induced decoherent production of dark matter candidate sterile neutrinos in the early universe. In cases with a significant net lepton number we find two resonances, where the effective…

Astrophysics · Physics 2008-12-18 Chad T. Kishimoto , George M. Fuller

Environmental neutrons are a source of background for rare event searches (e.g., dark matter direct detection and neutrinoless double beta decay experiments) taking place in deep underground laboratories. The overwhelming majority of these…

Fast neutron beams are of relevance for many scientific and industrial applications. This paper explores fast neutron production using a TANDEM accelerator at the Legnaro National Laboratories, via an energetic ion beam (90 MeV $^{14}N$)…