Results 101 to 110 of about 186,516 (304)

Distillation of scalar exchange by coherent hypernucleus production in antiproton–nucleus collisions

Physics Letters B, 2017
The total and angular differential cross sections of the coherent process p¯+AZ→ΛA(Z−1)+Λ¯ are evaluated at the beam momenta 1.5÷20 GeV/c within the meson exchange model with bound proton and Λ-hyperon wave functions.
A.B. Larionov, H. Lenske
doaj   +1 more source

Several candidate size metrics explain vital rates across multiple populations throughout a widespread species' range

Journal of Ecology, EarlyView.
Size is an important determinant of vital rates. Using a dataset of unprecedented spatial extent we find (a) consistent size‐based models of growth, survival and reproduction across native and non‐native populations of this cosmopolitan plant species and (b) that several tested size metrics perform similarly well.
Maude E. A. Baudraz, Dylan Z. Childs, Ruth Kelly, Annabel L. Smith, Jesus Villellas, Martin Andrzejak, Benedicte Bachelot, Lajos K. Benedek, Simone P. Blomberg, Judit Bodis, Francis Q. Brearley, Anna Bucharova, Christina M. Caruso, Jane A. Catford, Matthew Coghill, Aldo Compagnoni, Anna Mária P. Csergő, Richard P. Duncan, John Dwyer, Johan Ehrlén, Bret D. Elderd, Alain Finn, Lauchlan Fraser, Maria B. García, Jennifer R. Gremer, Ronny Groenteman, Liv Norunn Hamre, Aveliina Helm, Maria Höhn, Lotte Korell, Lauri Laanisto, Anna‐Liisa Laine, Michele Lonati, Caroline M. McKeon, Aoife Molloy, Joslin L. Moore, Melanie Morales, Sergi Munne‐Bosch, Zuzana Münzbergová, Siri L. Olsen, Adrian Oprea, Meelis Pärtel, Rachel M. Penczykowski, William K. Petry, Satu Ramula, Pil U. Rasmussen, Simone Ravetto Enri, Deborah A. Roach, Anna Roeder, Christiane Roscher, Marjo Saastamoinen, Cheryl Schultz, R. Drew Sieg, Olav Skarpaas, Ayco J. M. Tack, Joachim Töpper, Peter A. Vesk, Gregory Vose, Elizabeth M. Wandrag, Glenda M. Wardle, Astrid Wingler, Yvonne M. Buckley   +61 more
wiley   +1 more source

Helicity operators for mesons in flight on the lattice

, 2012
Motivated by the desire to construct meson-meson operators of definite relative momentum in order to study resonances in lattice QCD, we present a set of single-meson interpolating fields at non-zero momentum that respect the reduced symmetry of a cubic ...
A. Martin, Christopher E. Thomas, Jozef J. Dudek, R. Babich, Robert G. Edwards   +4 more
core   +1 more source

Two-body spectra of pseudoscalar mesons with an $O(a^2)$--improved lattice action using Wilson fermions [PDF]

, 1997
We extend our calculations with the second-order tree-level and tadpole improved next-nearest-neighbor action to meson-meson systems. Correlation matrices built from interpolating fields representing two pseudoscalar mesons (pion-pion) with relative ...
A. Mihály, Albanese, Alexandrou, Canosa, Eguchi, Fiebig, Fukugita, H. Markum, H.R. Fiebig, Hamber, K. Rabitsch, Mihály, R.M. Woloshyn, Rabitsch, Richards   +14 more
core   +3 more sources

Mass Spectrum of Noncharmed and Charmed Meson States in Extended Linear-Sigma Model

Particles
The mass spectrum of different meson particles is generated using an effective Lagrangian of the extended linear-sigma model (eLSM) for scalar and pseudoscalar meson fields and quark flavors, up, down, strange, and charm.
Azar I. Ahmadov, Azzah A. Alshehri, Abdel Nasser Tawfik   +2 more
doaj   +1 more source

Threshold effects in hadron spectrum: a new spectroscopy?

EPJ Web of Conferences, 2018
The exploration of energies above the open-flavor threshold in the meson spectra has led to the appearance of unexpected states difficult to accommodate in the naive picture of a bound state of a quark and an antiquark.
Ortega P.G., Segovia J., Entem D.R., Fernández F.   +3 more
doaj   +1 more source

Meson Masses and Energetics of Meson Decay [PDF]

American Journal of Physics, 1952
A series of measurements of the π- and μ-meson masses and their decay energies is reviewed. Recent mass measurements made at the University of California Radiation Laboratory have employed an improved method in which the ratio of the π-meson mass to that of the proton and the ratio of the μ-meson mass to that of the π-meson were determined by measuring
openaire   +3 more sources

Temperature and precipitation explain species‐specific phenological patterns in five native California milkweed species (Asclepias spp.)

Journal of Ecology, EarlyView.
Combining analytical approaches for studying phenology using observation datasets with the wide availability of observational data from participatory science sources offers an exciting possibility to rapidly generate hypotheses about how organisms' phenology may react to novel cue combinations under global change, and how these reactions may differ ...
Dylan J. MacArthur‐Waltz, Dylan S. Sommer, Prabhjot Singh, Louie H. Yang   +3 more
wiley   +1 more source

Probing kaon meson condensations through gravitational waves during neutron star inspiral phases

Physics Letters B
Gravitational waves from binary neutron star merger events have shown unparalleled advantages in deciphering the stellar internal structure, yet it remains underexplored to seek clues about kaon meson condensations inside massive neutron stars through ...
Bin Hong, Zhongzhou Ren
doaj   +1 more source

Resonance dynamics in the coherent η meson production in the (p,p′) reaction on the spin–isospin saturated nucleus

Physics Letters B, 2014
For the forward going proton and η meson, the coherent η meson production in the (p,p′) reaction on the spin–isospin saturated nucleus occurs only due to the η meson exchange interaction between the beam proton and nucleus.
Swapan Das
doaj   +1 more source