Results 51 to 60 of about 382,328 (344)

Neutron scattering for structural biology [PDF]

Physics Today, 2020
Modern neutron sources illuminate the complex functions of living systems.
Hoogerheide, David P, Forsyth, V Trevor, Brown, Katherine A   +2 more
openaire   +3 more sources

Probing additional dimensions in the universe with neutron experiments [PDF]

, 2003
We carry out a simple analysis of (n+3)-dimensional gravity in the context of recent work on 'large' supplementary dimensions and deduce a formula for the expected compactification radius for the n additional dimensions in the universe, as a function of ...
Frank, Alejandro, Gomez-Camacho, Joaquin, van Isacker, Piet   +2 more
core   +6 more sources

Direct prediction of inelastic neutron scattering spectra from the crystal structure

Machine Learning: Science and Technology, 2023
Inelastic neutron scattering (INS) is a powerful technique to study vibrational dynamics of materials with several unique advantages. However, analysis and interpretation of INS spectra often require advanced modeling that needs specialized computing ...
Yongqiang Cheng, Geoffrey Wu, Daniel M Pajerowski, Matthew B Stone, Andrei T Savici, Mingda Li, Anibal J Ramirez-Cuesta   +6 more
doaj   +1 more source

Tomonaga–Luttinger liquid behavior and spinon confinement in YbAlO3

Nature Communications, 2019
Low dimensional quantum magnetic excitations are intriguing but the experimental realizations are challenging. Here, the authors demonstrate Tomonaga–Luttinger behavior and spinon confinement in rare-earth perovskite YbAlO3 by inelastic neutron ...
L. S. Wu, S. E. Nikitin, Z. Wang, W. Zhu, C. D. Batista, A. M. Tsvelik, A. M. Samarakoon, D. A. Tennant, M. Brando, L. Vasylechko, M. Frontzek, A. T. Savici, G. Sala, G. Ehlers, A. D. Christianson, M. D. Lumsden, A. Podlesnyak   +16 more
doaj   +1 more source

Constraining effects on polymer chain relaxation in crosslinked supramolecular dual networks

Frontiers in Soft Matter, 2023
Polymer networks containing transient physical and permanent chemical cross-links exhibit unique mechanical properties due to the intrinsic reassociating ability of supramolecular functional groups.
Jasper Feng, Jasper Feng, Jürgen Allgaier, Margarita Kruteva, Stephan Förster, Stephan Förster, Wim Pyckhout-Hintzen   +6 more
doaj   +1 more source

Integrated edge-to-exascale workflow for real-time steering in neutron scattering experiments. [PDF]

Struct Dyn
We introduce a computational framework that integrates artificial intelligence (AI), machine learning, and high-performance computing to enable real-time steering of neutron scattering experiments using an edge-to-exascale workflow.
Yin J, Reshniak V, Liu S, Zhang G, Wang X, Xiao Z, Morgan Z, Pawledzio S, Proffen T, Hoffmann C, Cao H, Chakoumakos BC, Liu Y.   +12 more
europepmc   +2 more sources

Neutron scattering and neural-network quantum molecular dynamics investigation of the vibrations of ammonia along the solid-to-liquid transition. [PDF]

Nat Commun
Vibrational spectroscopy allows us to understand complex physical and chemical interactions of molecular crystals and liquids such as ammonia, which has recently emerged as a strong hydrogen fuel candidate to support a sustainable society.
Linker TM, Krishnamoorthy A, Daemen LL, Ramirez-Cuesta AJ, Nomura K, Nakano A, Cheng YQ, Hicks WR, Kolesnikov AI, Vashishta PD.   +9 more
europepmc   +2 more sources

Precision Measurement of the n-3He Incoherent Scattering Length Using Neutron Interferometry

, 2009
We report the first measurement of the low-energy neutron-$^3$He incoherent scattering length using neutron interferometry: $b_i' = (-2.512\pm 0.012{statistical}\pm0.014{systematic})$ fm. This is in good agreement with a recent calculation using the AV18+
D. A. Pushin, D. S. Hussey, F. E. Wietfeldt, H. Kaiser, H. Rauch, L. Yang, M. Arif, M. G. Huber, S. B. Borzakov, S. F. Mughabghab, T. C. Black, T. R. Gentile, T. R. Gentile, V. F. Sears, W. C. Chen   +14 more
core   +1 more source

Low-energy neutron-deuteron reactions with N3LO chiral forces [PDF]

, 2014
We solve three-nucleon Faddeev equations with nucleon-nucleon and three-nucleon forces derived consistently in the framework of chiral perturbation theory at next-to-next-to-next-to-leading order in the chiral expansion.
Bernard, V., Binder, S., Calci, A., Epelbaum, E., Golak, J., Hebeler, K., Kamada, H., Krebs, H., Langhammer, J., Liebig, S., Maris, P., Meißner, Ulf-G., Minossi, D., Nogga, A., Roth, R., Skibinski, R., Topolnicki, K., Vary, J., Witala, H.   +18 more
core   +4 more sources

Multiple Scattering Theory for Slow Neutrons (from thermal to ultracold) [PDF]

, 1999
The general theory of neutron scattering is presented, valid for the whole domain of slow neutrons from thermal to ultracold. Particular attention is given to multiple scattering which is the dominant process for ultracold neutrons (UCN). For thermal and cold neutrons, when the multiple scattering in the target can be neglected, the cross section is ...
arxiv   +1 more source