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The low energy part of the reactor neutrino spectra has not been experimentally measured. Its uncertainties limit the sensitivities in certain reactor neutrino experiments. The origin of these uncertainties are discussed, and the effects on…

High Energy Physics - Experiment · Physics 2009-09-25 Hau-Bin Li , Henry T. Wong

The amount of emitted prompt neutrons from the fission fragments increases as a function of excitation energy. Yet it is not fully understood whether the increase in \nu(A) as a function of E_{n} is mass dependent. The share of excitation…

Nuclear Experiment · Physics 2013-04-09 A. Al-Adili , F. -J. Hambsch , S. Pomp , S. Oberstedt

Odd-even effects, also known as "staggering" effects, are a common feature observed in the yield distributions of fragments produced in different types of nuclear reactions. We review old methods, and we propose new ones, for a quantitative…

Nuclear Experiment · Physics 2016-04-12 Alessandro Olmi , Silvia Piantelli

Through decades of effort in nuclear data development and simulations of reactor neutronics and accelerator transmutation, a collection of reaction data is continuing to evolve with the potential of direct applications to the production of…

Medical Physics · Physics 2007-05-23 M. A. Garland , R. E. Schenter , R. J. Talbert , S. G. Mashnik , W. B. Wilson

We review the present status of the theory of high energy reactions with semi-exclusive nucleon electro-production from nuclear targets. We demonstrate how the increase of transferred energies in these reactions opens a complete new window…

Nuclear Theory · Physics 2009-11-07 Misak M. Sargsian

Background: Neutron-induced backgrounds are a significant concern for experiments that require extremely low levels of radioactive backgrounds such as direct dark matter searches and neutrinoless double-beta decay experiments. Unmeasured…

We analyze in details the standard Primordial Nucleosynthesis scenario. In particular we discuss the key theoretical issues which are involved in a detailed prediction of light nuclide abundances, as the weak reaction rates, neutrino…

Astrophysics · Physics 2018-03-23 P. D. Serpico , S. Esposito , F. Iocco , G. Mangano , G. Miele , O. Pisanti

Using the recently introduced model NEXUS 3, we calculate for proton-proton, neutron-proton and antiproton-proton collisions the excitation function of particle yields and of average transverse momenta of different particle species as well…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. M. Liu , T. Pierog , J. Aichelin , K. Werner

In interpreting the SNO experiments, very accurate estimates of the \nu d reaction cross sections are of great importance. We improve the previous estimates of our group by updating some of its inputs and by taking into account the results…

Nuclear Theory · Physics 2014-11-18 S. Nakamura , T. Sato , S. Ando , T. -S. Park , F. Myhrer , V. Gudkov , K. Kubodera

The neutron capture cross-section for the $^{181}$Ta(n,$\gamma$)$^{182}$Ta reaction has been experimentally measured at the neutron energies 0.53 and 1.05 MeV using off-line $\gamma$-ray spectrometry. $^{115}$In(n,n'$\gamma$)$^{115m}$In is…

We use our model for neutrino pion production on the nucleon to study pion production on a nucleus. The model is conveniently modified to include in-medium corrections and its validity is extended up to 2 GeV neutrino energies by the…

High Energy Physics - Phenomenology · Physics 2013-04-10 E. Hernández , J. Nieves , M. J. Vicente-Vacas

The cross sections for low-energy neutrino-deuteron reactions are calculated within heavy-baryon chiral perturbation theory employing cut-off regularization scheme. The transition operators are derived up to next-to-next-to-next-to-leading…

Nuclear Theory · Physics 2009-11-07 S. Ando , Y. H. Song , T. -S. Park , H. W. Fearing , K. Kubodera

Knowledge of the neutron light-yield response is crucial to the understanding of scintillator-based neutron detectors. In this work, neutrons from 2--6 MeV have been used to study the scintillation light-yield response of the liquid…

Total inclusive cross sections for neutral and charged pion production in proton-nucleus and nucleus-nucleus reactions have been calculated and compared to experiment. Nucleon-nucleon theoretical cross sections have been scaled up to…

Nuclear Theory · Physics 2008-11-26 John W. Norbury , Lawrence W. Townsend

Background induced by neutrons in deep underground laboratories is a critical issue for all experiments looking for rare events, such as dark matter interactions or neutrinoless 2-beta decay. Neutrons can be produced either by natural…

Astrophysics · Physics 2009-06-23 V. A. Kudryavtsev , L. Pandola , V. Tomasello

The study of the interaction of hadrons, produced by elementary probes in a nucleus, with the surrounding nuclear medium can give insight into two important questions. First, at high energies, the production process, the time-scales…

Nuclear Theory · Physics 2008-11-26 K. Gallmeister , M. Kaskulov , U. Mosel

New calculations of the time evolution and isotopic composition for a network of nuclear reactions breathe new life into an old idea in nuclear fusion, burning solid room temperature lithium-6 deuteride ($^6$LiD) with neutrons. Modern-day…

Observations of type Ia supernovae include information about the characteristic nucleosynthesis associated with these thermonuclear explosions. We consider observational constraints from iron-group elemental and isotopic ratios, to compare…

We present new parametrisations of energy spectra of secondary particles, $\pi$-mesons, gamma-rays, electrons and neutrinos, produced in inelastic proton-proton collisions. The simple analytical approximations based on imulations of…

Astrophysics · Physics 2014-10-13 S. R. Kelner , F. A. Aharonian , V. V. Bugayov

The relative yields of active and sterile neutrinos in the matter with a high density and different degree of neutronization are calculated. A significant increase in the proportion of sterile neutrinos produced in superdense matter when…

High Energy Physics - Phenomenology · Physics 2015-07-15 V. V. Khruschov , A. V. Yudin , D. K. Nadyozhin , S. V. Fomichev
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