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An important ingredient for applications of nuclear physics to e.g. astrophysics or nuclear energy are the cross sections for reactions of neutrons with rare isotopes. Since direct measurements are often not possible, indirect methods like…

Nuclear Theory · Physics 2016-08-03 Ch. Elster , L. Hlophe , V. Eremenko , F. M. Nunes , I. J. Thompson , G. Arbanas , J. E. Escher

Long-term variations of solar activity, including the Grand minima, are believed to result from temporal variations of dynamo parameters. The simplest approximation of dynamo waves is applied to show that cyclic variations of the parameters…

Solar and Stellar Astrophysics · Physics 2015-08-06 Leonid Kitchatinov , Alexander Nepomnyashchikh

The Coulomb interaction between the two protons is included in the calculation of proton-deuteron breakup and of three-body electromagnetic disintegration of ${}^3\mathrm{He}$. The hadron dynamics is based on the purely nucleonic…

Nuclear Theory · Physics 2014-11-18 A. Deltuva , A. C. Fonseca , P. U. Sauer

The effect of interactions on dynamics of coupled motor proteins is investigated theoretically. A simple stochastic discrete model, that allows to calculate explicitly the dynamic properties of the system, is developed. It is shown that…

Soft Condensed Matter · Physics 2009-11-11 Evgeny B. Stukalin , Anatoly B. Kolomeisky

We quantitatively determine the effect and the uncertainty on solar neutrino production arising from the screening process. We present predictions for the solar neutrino fluxes and signals obtained with different screening models available…

Astrophysics · Physics 2009-09-25 B. Ricci , S. Degl'Innocenti , G. Fiorentini

Nucleon transfer reactions in low-energy deuteron-deuteron scattering are described by solving exact four-particle equations in momentum space. The Coulomb interaction between the protons is included using the screening and renormalization…

Nuclear Theory · Physics 2011-08-23 A. Deltuva , A. C. Fonseca

A nonlinear response theory is developed and applied to electrostatic interactions between spherical macroions, screened by surrounding microions, in charge-stabilized colloidal suspensions. The theory describes leading-order nonlinear…

Soft Condensed Matter · Physics 2009-11-10 A. R. Denton

Self-consistent strong plasma screening around light nuclei is implemented in the Big Bang nucleosynthesis (BBN) epoch to determine the short-range screening potential, $e\phi(r)/T \geq 1$, relevant for thermonuclear reactions. We…

Nuclear Theory · Physics 2025-12-23 Christopher Grayson , Cheng Tao Yang , Martin Formanek , Johann Rafelski

We analyze the dynamics of fast electrons in plasmas containing partially ionized impurity atoms, where the screening effect of bound electrons must be included. We derive analytical expressions for the deflection and slowing-down…

A dynamical model of the dielectric screening of conjugated polymers is introduced and solved using the density matrix renormalization group method. The model consists of a line of quantized dipoles interacting with a polymer chain. The…

Strongly Correlated Electrons · Physics 2009-11-10 William Barford , Robert Bursill , David Yaron

We study the density-density response function of a collection of charged massive Dirac particles and present analytical expressions for the dynamical polarization function in one, two and three dimensions. The polarization function is then…

Mesoscale and Nanoscale Physics · Physics 2017-02-28 Anmol Thakur , Rashi Sachdeva , Amit Agarwal

We develop a kinetic reaction model for cells having irradiated DNA molecules due to ionizing radiation exposure. Our theory simultaneously accounts for the time-dependent reactions of the DNA damage, the DNA mutation, the DNA repair, and…

Biological Physics · Physics 2015-06-18 Yuichiro Manabe , Issei Nakamura , Masako Bando

Hot, dense plasmas exhibit screened Coulomb interactions, resulting from the collective effects of correlated many-particle interactions. In the lowest particle correlation order (pair-wise correlations), the interaction between charged…

Atomic Physics · Physics 2016-11-29 R. K. Janev , Song Bin Zhang , Jian Guo Wang

The fusion enhancement factor due to screening in the solar plasma is calculated. We use the finite temperature Green's function method and a self consistent mean field approximation. We reduce this to one center problems, because in the…

Astrophysics · Physics 2009-10-31 L. Wilets , B. G. Giraud , M. J. Watrous , J. J. Rehr

REACLIB is one of the most comprehensive and popular astrophysical reaction rate libraries. However, its experimentally obtained rates for light isotopes still rely mainly on the Caughlan & Fowler (1988) compilation and have never been…

Nuclear Theory · Physics 2007-05-23 Theodore E. Liolios

Accurate calculation of the ion-ion recombination rate coefficient has been of long-standing interest, as it controls the ion concentration in gas phase systems and in aerosols. We describe the development of a hybrid continuum-molecular…

Chemical Physics · Physics 2020-03-18 Tomoya Tamadate , Hidenori Higashi , Takafumi Seto , Christopher Hogan

Dynamical fluctuations in global conserved quantities such as baryon number, strangeness, or charge may be observed near a QCD critical point. Results from new measurements of dynamical $K/\pi$, $p/\pi$, and $K/p$ ratio fluctuations are…

Nuclear Experiment · Physics 2019-08-14 Terence J Tarnowsky

The low energy fusion cross sections of charged-particle nuclear reactions (and the respective reaction rates) in stellar plasmas are enhanced due to plasma screening effects. We study the impact of those effects on predictive stellar…

Nuclear Theory · Physics 2009-11-11 Theodore Liolios , Theocharis Kosmas

Space-borne missions CoRoT and Kepler have provided a rich harvest of high-quality photometric data for solar-like pulsators. It is now possible to measure damping rates for hundreds of main-sequence and thousands of red-giant. However,…

Solar and Stellar Astrophysics · Physics 2019-05-01 K. Belkacem , F. Kupka , R. Samadi , H. Grimm-Strele

We introduce a new screening function which is useful for the few-body Coulomb scattering problem in ``screening and renormalization'' scheme. The new renormalization phase factor of the screening function is analytically shown. The Yukawa…

Nuclear Theory · Physics 2009-11-10 M. Yamaguchi , H. Kamada , Y. Koike