Results 71 to 80 of about 12,458,012 (347)

Using dendroclimatic analysis of exotic deciduous conifers in an arboretum to document tree growth in response to climate change, Northeast Ohio, USA

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Rising temperatures and wetter conditions in the Midcontinent of North America are influencing climate responses in trees. Dendroclimatological analyses of four exotic deciduous conifer species from Secrest Arboretum, Northeast Ohio help identify past, present and future climate‐tree interactions.
Gregory Wiles   +6 more
wiley   +1 more source

Meson scattering in a non-minimally Lorentz-violating scalar QED at finite temperature

open access: yesEuropean Physical Journal C: Particles and Fields
In this paper we study meson scattering in a non-minimally Lorentz-violating scalar QED at finite temperature. The meson scatterings were investigated in tree level and the finite temperature effects were addressed by using the thermofield dynamics ...
M. C. Araújo, R. V. Maluf, J. Furtado
doaj   +1 more source

The interaction of glueball and heavy-light flavoured meson in holographic QCD

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We construct the D4/D8 brane configuration in the Witten–Sakai–Sugimoto model by introducing a pair of heavy flavour brane with a heavy-light open string.
Si-wen Li
doaj   +1 more source

Dusky grouse seasonal resource selection in the Great Basin isolated mountain ranges of Nevada, USA

open access: yesWildlife Biology, EarlyView.
Dusky grouse Dendragapus obscurus are a montane forest grouse species with a paucity of information regarding their temporal and spatial resource use during critical times of high mortality and reproductive output. This lack of vital data may leave dusky grouse at risk of sub‐optimal management in many areas of their distribution, especially in the ...
Stephanie Landry   +4 more
wiley   +1 more source

Heavy hadrons spectra on lattice using NRQCD

open access: yesEPJ Web of Conferences, 2018
Comparison of radial excitation energies to masses show that the velocity of b quark is very non-relativistic in bottomonium states. In a mixed system like charmed B meson, the b quark has less velocity than it has in bottomonium states and in strange B ...
Mohanta Protick, Basak Subhasish
doaj   +1 more source

Inverse moment of the B s -meson distribution amplitude from QCD sum rule

open access: yesJournal of High Energy Physics, 2020
We derive a QCD sum rule for the inverse moment of the B s -meson light-cone distribution amplitude in HQET. Within this method, the SU(3) f l symmetry violation is traced to the strange quark mass and to the difference between strange and nonstrange ...
Alexander Khodjamirian   +2 more
doaj   +1 more source

Exotic molecular meson states of $$B^{(*)} K^{(*)}$$ B ( ∗ ) K ( ∗ ) nature

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We evaluate theoretically the interaction of the open bottom and strange systems $${{\bar{B}}}{{\bar{K}}}$$ B ¯ K ¯ , $${{\bar{B}}^*}{{\bar{K}}}$$ B ¯ ∗ K ¯ , $${{\bar{B}}}{{\bar{K}}^*}$$ B ¯ K ¯ ∗ and $${{\bar{B}}^*}{{\bar{K}}^*}$$ B ¯ ∗ K ¯ ∗ to look ...
E. Oset, L. Roca
doaj   +1 more source

Scalar Leptoquarks and the Rare B Meson Decays [PDF]

open access: yes, 2015
We study some rare decays of B meson involving the quark level transition \(b \rightarrow q l^+l^-~(q=d,s)\) in the scalar leptoquark model. We constrain the leptoquark parameter space using the recently measured branching ratios of \(B_{s,d} \rightarrow
S. Sahoo, R. Mohanta
semanticscholar   +1 more source

Micro‐habitat selection by boreal woodland caribou improves access to food

open access: yesWildlife Biology, EarlyView.
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson   +8 more
wiley   +1 more source

Phenomenology of Semileptonic B-Meson Decays with Form Factors from Lattice QCD [PDF]

open access: yes, 2015
We study the exclusive semileptonic B-meson decays B→K(π)l+l-, B→K(π)νν¯, and B→πτν, computing observables in the Standard model using the recent lattice-QCD results for the underlying form factors from the Fermilab Lattice and MILC Collaborations. These
D. Du   +7 more
semanticscholar   +1 more source

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