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Strange quark contributions to the neutral current reaction in the neutrino scattering are investigated on the nucleon level and extended to the $^{12}$C target nucleus through the neutrino-induced knocked-out nucleon process in the…

Nuclear Theory · Physics 2007-10-23 K. S. Kim , Myung Ki Cheoun

Single crystal inelastic neutron scattering is used to study spin wave excitations in the fully polarized state of the frustrated quantum ferro-antiferromagnet BaCdVO(PO$_4$)$_2$. The data analysis is based on a Heisenberg spin Hamiltonian…

Strongly Correlated Electrons · Physics 2021-04-07 V. K. Bhartiya , S. Hayashida , K. Yu. Povarov , Z. Yan , Y. Qiu , S. Raymond , A. Zheludev

Neutron scattering is a powerful tool to study magnetic structures and dynamics, benefiting from a precisely established theoretical framework. The neutron dipole moment interacts with electrons in materials via their magnetic field, which…

Strongly Correlated Electrons · Physics 2020-11-23 Nicolas Gauthier , Victor Porée , Sylvain Petit , Vladimir Pomjakushin , Elsa Lhotel , Tom Fennell , Romain Sibille

We study theoretically how we can determine the neutron density distributions of unstable nuclei from proton elastic scattering. We apply the relativistic impulse model to study the sensitivities of the observables to the density…

Nuclear Theory · Physics 2015-06-26 K. Kaki , S. Hirenzaki

The present article reviews recent experimental investigations of spin dynamics in iron-based superconductors and their parent compounds by means of inelastic neutron scattering. It mainly focuses on the most contemporary developments in…

Superconductivity · Physics 2016-01-05 Dmytro S. Inosov

We perform an extensive analysis of neutrino diffusion in quark matter within the MIT bag model at arbitrary temperature and degeneracy. We examine in detail the contribution of each of the relevant weak interaction processes to the total…

Solar and Stellar Astrophysics · Physics 2015-06-19 Gustavo C. Colvero , Germán Lugones

A critical examination of the spin dynamics in high-$T_C$ cuprates is made on the light of inelastic neutron scattering results obtained by different groups. Recent neutron data show that incommensurate magnetic peaks in YBCO belong to the…

Superconductivity · Physics 2020-12-22 Ph. Bourges , B. Keimer , L. P. Regnault , Y. Sidis

Starting from the generalized t-J-G model Hamiltonian, we analyze the spin response in the superconducting cuprates taking into account both local and itinerant spin components which are coupled to each other self-consistently. Derived…

Superconductivity · Physics 2012-07-24 M. V. Eremin , I. M. Shigapov , I. M. Eremin

Inelastic neutron scattering experiments on the Haldane-gap quantum antiferromagnet NDMAP are performed in magnetic fields below and above the critical field Hc at which the gap closes. Quasi-elastic neutron scattering is found for H>Hc…

Strongly Correlated Electrons · Physics 2009-11-07 A. Zheludev , Z. Honda , Y. Chen , C. L. Broholm , K. Katsumata

Several different scenarios for neutrino scattering experiments using a neutrino beam from the muon collider complex are discussed. The physics reach of a neutrino experiment at the front end of a muon collider is shown to extend far beyond…

High Energy Physics - Experiment · Physics 2010-02-02 Deborah A. Harris , Kevin S. McFarland

Recent neutron-scattering experiments on La(2-x)Sr(x)CuO4 single crystals by Wakimoto et al. have revealed that elastic magnetic peaks appear at low temperatures in both insulating (x=0.02-0.05) and superconducting (x=0.06) samples. We have…

We review recent developments in the study of deep inelastic scattering from light nuclei, focusing in particular on deuterium, helium, and lithium. Understanding the nuclear effects in these systems is essential for the extraction of…

Nuclear Theory · Physics 2017-08-23 W. Melnitchouk , A. W. Thomas

We report inelastic neutron scattering experiments on the doping dependence of the energy and spectral weight of the sharp magnetic resonance peak in YBa_2 Cu_3 O_{6+x}. These measurements also shed light on the relationship between the…

Condensed Matter · Physics 2009-10-30 B. Keimer , H. F. Fong , S. H. Lee , D. L. Milius , I. A. Aksay

A comprehensive inelastic neutron scattering study of magnetic excitations in the near-optimally doped high-temperature superconductor ${\rm YBa_{2}Cu_{3}O_{6.85}}$ is presented. The spin correlations in the normal state are commensurate…

Superconductivity · Physics 2009-10-31 P. Bourges , Y. Sidis , H. F. Fong , L. P. Regnault , J. Bossy , A. Ivanov , B. Keimer

The specific heat jump at a normal-superconducting phase transition in an anisotropic superconductor with nonmagnetic impurities is calculated within a weak-coupling mean field approximation. It is shown that its dependence on the impurity…

Superconductivity · Physics 2009-10-30 G. Haran , J. Taylor , A. D. S. Nagi

Within nuclear thermodynamics and an isospin-dependent transport model we investigate respective roles of the nuclear mean field and the 2-body stochastic scattering on the evolution of density and isospin fluctuations in either…

Nuclear Theory · Physics 2008-11-26 Bao-An Li , Andrew T. Sustich , Matt Tilley , Bin Zhang

Quite a few low-dimensional magnets are quantum-disordered ``spin liquids'' with a characteristic gap in the magnetic excitation spectrum. Among these are antiferromagnetic chains of integer quantum spins. Their generic feature are…

Strongly Correlated Electrons · Physics 2009-11-11 A. Zheludev

We report neutron inelastic scattering measurements on the stoichiometric iron-based superconductor LiFeAs. We find evidence for (i) magnetic scattering consistent with strong antiferromagnetic fluctuations, and (ii) an increase in…

Strongly Correlated Electrons · Physics 2011-07-21 A. E. Taylor , M. J. Pitcher , R. A. Ewings , T. G. Perring , S. J. Clarke , A. T. Boothroyd

Polarized neutron inelastic scattering has been used to measure spin excitations in ferromagnetic La$_{0.82}$Sr$_{0.18}$CoO$_{3}$. The magnon spectrum of these spin excitations is well defined at low energies but becomes heavily damped at…

Strongly Correlated Electrons · Physics 2010-10-08 R. A. Ewings , P. G. Freeman , M. Enderle , J. Kulda , D. Prabhakaran , A. T. Boothroyd

Inelastic neutron scattering was used to determine the spin Hamiltonian for the singlet ground state system of fully deuterated BPCB, (C$_{5}$D$_{12}$N)$_{2}$CuBr$_{4}$. A 2-leg spin-1/2 ladder model, with $J_\bot = (1.09 \pm 0.01)$ meV and…

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