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Nuclear halos are very exotic quantal structures observed far from stability. Because of their short lifetime, they are mostly studied through reactions. The ratio method offers a new observable: the ratio of angular differential cross…

Five years have passed since the first collisions of Au nuclei at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) on Long Island. With nucleon-nucleon center-of-mass energies of up to sqrt(s_NN)=200GeV…

Nuclear Experiment · Physics 2009-11-11 A. Franz

Reduced-scale experiments offer a controlled and safe environment for studying the effects of blasts on structures. Traditionally, these experiments rely on the detonation of solid or gaseous explosive mixtures, with only limited…

Classical Physics · Physics 2024-11-26 Ahmad Morsel , Filippo Masi , Panagiotis Kotronis , Ioannis Stefanou

A simple theory for the tunneling of two cold atoms out of a trap in the presence of an attractive contact force is developed. Two competing decay channels, respectively for single-atom and bound-pair tunneling, contribute independently to…

Quantum Gases · Physics 2013-10-24 Massimo Rontani

We propose a new Monte Carlo method called the pinhole trace algorithm for {\it ab initio} calculations of the thermodynamics of nuclear systems. For typical simulations of interest, the computational speedup relative to conventional…

A natural approach to measure the time of arrival of an atom at a spatial region is to illuminate this region with a laser and detect the first fluorescence photons produced by the excitation of the atom and subsequent decay. We investigate…

Quantum Physics · Physics 2009-11-10 J. A. Damborenea , I. L. Egusquiza , G. C. Hegerfeldt , J. G. Muga

Two different methods have been employed to determine the plasma temperature in a laser-cluster fusion experiment on the Texas Petawatt laser. In the first, the temperature was derived from time-of-flight data of deuterium ions ejected from…

We develop a new three-dimensional time-dependent radiative transfer code, TRINITY (Time-dependent Radiative transfer In Near-Infrared TomographY), for in-vivo diffuse optical tomography (DOT). The simulation code is based on the design of…

Medical Physics · Physics 2022-01-10 Hidenobu Yajima , Makito Abe , Masayuki Umemura , Yuichi Takamizu , Yoko Hoshi

The ALICE experiment at the Large Hadron Collider at CERN is optimized to study the properties of the hot, dense matter created in high energy nuclear collisions in order to improve our understanding of the properties of nuclear matter…

Nuclear Experiment · Physics 2019-08-13 Christine Nattrass

Meteorite studies have revealed the presence of short-lived radioactivities in the early solar system. The current data suggests that the origin of at least some of the radioactivities requires contribution from recent nucleosynthesis at a…

Astrophysics · Physics 2009-11-07 Harri A. T. Vanhala , Alan P. Boss

Recently, a series of dedicated inverse-kinematics experiments performed at GSI, Darmstadt, has brought an important progress in our understanding of proton and heavy-ion induced reactions at relativistic energies. The nuclear reaction code…

Nuclear Experiment · Physics 2014-11-18 S. Lukic , F. Gevaert , A. Kelic , M. V. Ricciardi , K. -H. Schmidt , O. Yordanov

The method of Taylor series expansion is used to develop a numerical solution to the reactor point kinetics equations. It is shown that taking a first order expansion of the neutron density and precursor concentrations at each time step…

Computational Physics · Physics 2013-04-03 David McMahon , Adam Pierson

Quantum theory and general relativity are about one century old. At present, they are considered the best available explanations of physical reality, and they have been so far corroborated by all experiments realised so far. Nonetheless,…

Quantum Physics · Physics 2024-10-11 Chiara Marletto , Vlatko Vedral

In this work, we explore the use of an iterative Bayesian Monte Carlo (IBM) procedure for nuclear data evaluation within a Talys Evaluated Nuclear data Library (TENDL) framework. In order to identify the model and parameter combinations…

Data Analysis, Statistics and Probability · Physics 2020-03-25 E. Alhassan , D. Rochman , A. Vasiliev , M. Wohlmuther , M. Hursin , A. J. Koning , H. Ferroukhi

We present the Time of Flight Fixed by Energy Estimation (TOFFEE) as a measure of the fission chain dynamics in subcritical assemblies. TOFFEE is the time between correlated gamma rays and neutrons, subtracted by the estimated travel time…

Data Analysis, Statistics and Probability · Physics 2018-03-14 Mateusz Monterial , Peter Marleau , Sara Pozzi

We propose a Bell test experiment using momentum-entangled atom pairs of different masses, specifically metastable helium isotopes 3He* and 4He*, though the method extends to other atom species. Entanglement is generated via collisions,…

Quantum Physics · Physics 2025-12-23 X. T. Yan , S. Kannan , Y. S. Athreya , A. G. Truscott , S. S. Hodgman

Summary: In the past decade both scientists and laymen have probably heard at least once through the newspapers, TV and Internet that a new asteroid has been discovered with non-zero (sometimes "high") probability of collision with the…

Space Physics · Physics 2013-04-29 Germano D'Abramo

Neutrons can induce background events in underground experiments looking for rare processes. Neutrons in a MeV range in deep underground laboratories are produced in spontaneous fission processes and ($\alpha,n$) reactions. A number of…

Nuclear Experiment · Physics 2022-12-05 Vitaly A. Kudryavtsev , Piotr Krawczun , Rayna Bocheva

Proof theory began in the 1920's as a part of Hilbert's program, which aimed to secure the foundations of mathematics by modeling infinitary mathematics with formal axiomatic systems and proving those systems consistent using restricted,…

Logic · Mathematics 2017-12-19 Jeremy Avigad

In nature there are various pairs of observed phenomena and observing scientific techniques which are elegantly coupled with each other. A very general and well known example is the fact that the metal we use to build telescopes were once…

History and Philosophy of Physics · Physics 2013-05-22 Aswin Sekhar