Results 101 to 110 of about 86,247 (271)

mQfit, a new program for analyzing quasi-elastic neutron scattering data

EPJ Web of Conferences, 2015
Analysis of Quasi-elastic Neutron Scattering (QENS) data of complex systems such as biological or soft matter samples in a comprehensive and explicit way often requires great efforts.
Martinez Nicolas, Natali Francesca, Peters Judith   +2 more
doaj   +1 more source

Nuclear halo structure from quasielastic charge-exchange reactions

, 2005
Neutron and proton densities in the nuclear periphery are investigated within (p,n) charge-exchange isobar transitions. For this purpose we have developed parameter-free optical potentials with a detailed treatment of the in-medium $t_{\tau}$ part of the
Arellano, H. F., Love, W. G.
core   +2 more sources

Neutral-Current Atmospheric Neutrino Flux Measurement Using Neutrino-Proton Elastic Scattering in Super-Kamiokande [PDF]

, 2003
Recent results show that atmospheric $\nu_\mu$ oscillate with $\delta m^2 \simeq 3 \times 10^{-3}$ eV$^2$ and $\sin^2{2\theta_{atm}} \simeq 1$, and that conversion into $\nu_e$ is strongly disfavored.
A. Aguilar, A. Liesenfeld, C. Bleve, C.H. Llewellyn Smith, C.W. Walter, D. Casper, E. Kolbe, F. Boehm, F. Boehm, F. Vissani, G. Co’, G.L. Fogli, G.T. Garvey, H. Gallagher, H. Pas, H.P. Wellisch, J. Bernabéu, J.F. Beacom, John F. Beacom, K. Hagiwara, L.A. Ahrens, L.A. Ahrens, L.A. Ahrens, L.A. Ahrens, L.J. Hall, L.J. Hall, M. Apollonio, M. Honda, M. Malek, M. Maltoni, M.C. Bañuls, M.C. Gonzalez-Garcia, M.H. Ahn, O.G. Ryazhskaya, O.G. Ryazhskaya, P. Di Bari, P. Lipari, Q.Y. Liu, R. Foot, R. Tayloe, R.K. Tripathi, S. Fukuda, S. Kasuga, S. Nussinov, Sergio Palomares-Ruiz, T. Kajita, T. Stanev, T.K. Gaisser, V. Bernard, W.M. Alberico, W.W. Allison, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Hayato   +56 more
core   +2 more sources

Underlying Roles of Polyol Additives in Promoting CO2 Capture in PEI/Silica Adsorbents

ChemSusChem, Volume 17, Issue 22, November 25, 2024.
Poly(ethylenimine) (PEI) mixed with short‐chain poly(ethylene glycol) (PEG) additives and co‐impregnated to mesoporous SBA‐15 silica demonstrate enhanced CO2 capacities and uptake rates. Neutron scattering, solid‐state NMR, and molecular dynamics simulations reveal that favorable PEI distribution is crucial.
Hyun June Moon, Jan‐Michael Y. Carrillo, MinGyu Song, Guanhe Rim, William T. Heller, Johannes Leisen, Laura Proaño, Gabriel N. Short, Sayan Banerjee, Bobby G. Sumpter, Christopher W. Jones   +10 more
wiley   +1 more source

CO2 Uptake and Stability Enhancement in Vinyltrimethoxysilane‐Treated SBA‐15 Solid Amine‐Based Sorbents

Small, Volume 20, Issue 46, November 14, 2024.
A new surface treatment using vinyltrimethoxysilane on poly(ethyleneimine) (PEI)‐loaded B‐doped mesoporous silica is reported, which increases the activity of nitrogen sorption sites for CO2 capture under direct air capture and point‐source capture conditions.
Anthony Vallace, Zachary S. Campbell, Hyun June Moon, William J. Koros, Christopher W. Jones, Ryan P. Lively   +5 more
wiley   +1 more source

Critical dynamics of a spin-5/2 2D isotropic antiferromagnet

, 2001
We report a neutron scattering study of the dynamic spin correlations in Rb$_2$MnF$_4$, a two-dimensional spin-5/2 antiferromagnet. By tuning an external magnetic field to the value for the spin-flop line, we reduce the effective spin anisotropy to ...
A. Auerbach, A. Cuccoli, G. M. Wysin, K. R. Thurber, K. Yamada, M. A. Kastner, M. Greven, M. Makivic, N. Elstner, P. C. Hohenberg, P. Hasenfratz, P. Hasenfratz, R. A. Cowley, R. A. Cowley, R. J. Birgeneau, R. J. Birgeneau, R. J. Christianson, R. L. Leheny, R. L. Leheny, R. W. Erwin, S. Chakravarty, S. Fulton, S. M. Hayden, S. Tyc, V. Dohm, Y.S. Lee   +25 more
core   +1 more source

Accessing self‐diffusion on nanosecond time and nanometre length scales with minute kinetic resolution

Journal of Applied Crystallography, Volume 57, Issue 4, Page 912-924, August 2024.
A new analysis framework to treat quasi‐elastic neutron spectroscopy data recorded at discrete energy transfers has been developed. This new approach can be employed successfully for kinetic studies of diffusive dynamics.Neutron spectroscopy uniquely and non‐destructively accesses diffusive dynamics in soft and biological matter, including for instance
Christian Beck, Felix Roosen-Runge, Marco Grimaldo, Dominik Zeller, Judith Peters, Frank Schreiber, Tilo Seydel   +6 more
wiley   +1 more source

Extended Superscaling of Electron Scattering from Nuclei

, 2001
An extended study of scaling of the first and second kinds for inclusive electron scattering from nuclei is presented. Emphasis is placed on the transverse response in the kinematic region lying above the quasielastic peak.
A. Hotta, C. Maieron, C.C. Blatchley, C.F. Williamson, D. Day, D.B. Day, D.T. Baran, Ingo Sick, J. Arrington, J. Jourdan, J.E. Amaro, J.E. Amaro, J.P. Chen, J.S. O’Connell, J.W. Van Orden, M. Deady, M.B. Barbaro, P. Barreau, P. Barreau, R. Cenni, R.M. Sealock, R.R. Whitney, S. Dasu, S. Dasu, S. Dasu, S. Rock, T. W. Donnelly, T.C. Yates, T.W. Donnelly, T.W. Donnelly, W.M. Alberico, Z. Meziani, Z.-E. Meziani   +32 more
core   +1 more source

Strangeness content of the nucleon in quasielastic neutrino-nucleus reactions

, 2007
We present a systematic study of the sensitivity of quasielastic neutrino-nucleus cross sections at intermediate energies to the strange quark sea of the nucleon. To this end, we investigate the impact of the weak strangeness form factors on the ratio of
B. Serot, C. Praet, J. Ryckebusch, N. Jachowicz, P. Lava, P. Vancraeyveld   +5 more
core   +1 more source

Polaron-mediated spin correlations in metallic and insulating La$_{1-x}A_{x}$MnO$_{3}$ ($A$=Ca, Sr, or Ba)

, 2014
Neutron spectroscopy measurements reveal short-range spin correlations near and above the ferromagnetic-paramagnetic phase transition in manganite materials of the form La$_{1-x}A_{x}$MnO$_{3}$, including samples with an insulating ground state as well ...
Barilo, Sergei N., Bychkov, Georgii L., Helton, Joel S., Lynn, Jeffrey W., Mukovskii, Yakov M., Pajerowski, Daniel M., Qiu, Yiming, Shulyatev, Dmitry A., Zhao, Yang   +8 more
core   +1 more source