Results 121 to 130 of about 89,591 (284)

S=−1 meson-baryon interaction and the role of isospin filtering processes [PDF]

open access: yesPhysical Review C, 2018
A study of the meson-baryon interaction in the $S=-1$ sector is performed, employing a chiral SU(3) lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels.
A. Feijoo, V. Magas, À. Ramos
semanticscholar   +1 more source

Derivation of the Lorentz Transformations for Three‐Dimensional Relative Motion Between Inertial Frames of Reference

open access: yesAdvances in Mathematical Physics, Volume 2025, Issue 1, 2025.
Lorentz transformations are central to relativistic mechanics, explaining phenomena such as the mass–energy relationship, spatial contraction, momentum transformation, velocity addition, and the geometric structure of Minkowski space‐time. While traditionally derived for motion along a single spatial axis, these transformations can be generalized to ...
Chandra Bahadur Khadka   +1 more
wiley   +1 more source

Update on Light WIMP Limits: LUX, lite and Light

open access: yes, 2014
We reexamine the current direct dark matter data including the recent CDMSlite and LUX data, assuming that the dark matter consists of light WIMPs, with mass close to 10 GeV/$c^2$ with spin-independent and isospin-conserving or isospin-violating ...
Del Nobile, Eugenio   +3 more
core   +1 more source

Isospin violation in epsilon'

open access: yesPhysical review letters, 2003
Peer ...
Cirigliano, Vincenzo   +3 more
openaire   +5 more sources

Study of Semileptonic B⟶DPℓ+νℓ Decays Based on the SU(3) Flavor Symmetry

open access: yesAdvances in High Energy Physics, Volume 2025, Issue 1, 2025.
Decays B⟶DPℓ+νℓ(ℓ = e, μ, τ) with the nonresonance, the charmed vector resonances, the charmed scalar resonances, and the charmed tensor resonances are explored by using the SU(3) flavor symmetry approach. Firstly, the decay amplitudes of different modes are related by the SU(3) flavor symmetry.
Ru-Min Wang   +5 more
wiley   +1 more source

Effect of isospin dependent cross-section on fragment production in the collision of charge asymmetric nuclei

open access: yes, 2011
To understand the role of isospin effects on fragmentation due to the collisions of charge asymmetric nuclei, we have performed a complete systematical study using isospin dependent quantum molecular dynamics model. Here simulations have been carried out
ANUPRIYA JAIN   +16 more
core   +1 more source

Isospin splittings in baryons with two heavy quarks [PDF]

open access: yes, 2017
Isospin splittings in baryons with two heavy quarks and a $u$ or $d$ quark are calculated using simple methods proposed previously by the authors. The results are $M(\Xi_{cc}^{++})-M(\Xi_{cc}^+) = 1.41 \pm 0.12^{+0.76}$ MeV, $M(\Xi_{bb}^0) - M(\Xi_{bb}^
M. Karliner, J. Rosner
semanticscholar   +1 more source

Isospinning Skyrmions [PDF]

open access: yes, 2014
In the Skyrme model atomic nuclei are modelled as quantized soliton solutions in a nonlinear field theory of pions. The mass number is given by the conserved topological charge $B$ of the solitons. Conventionally, Skyrmions are semiclassically quantized within the rigid body approach.
openaire   +2 more sources

Quarks unter Hochdruck im Proton

open access: yesPhysik in unserer Zeit, Volume 55, Issue 6, Page 298-306, November 2024.
Schon vor etwa 90 Jahren haben Experimente gezeigt, dass das Proton kein punktförmiges Elementarteilchen ist, wie das Elektron, sondern eine innere Struktur aufweist. Dies war der Beginn der Protonstrukturforschung, die vor Kurzem mit der Messung des Drucks im Innern des Protons einen spannenden Höhepunkt erreicht hat.
Volker Burkert   +2 more
wiley   +1 more source

Isospin-breaking contribution to the model-independent axion-photon-photon coupling in U(3) chiral theory

open access: yesEuropean Physical Journal C: Particles and Fields
We pursue the calculation of the model-independent component of the axion-photon-photon coupling in the U(3) chiral perturbation theory up to next-to-leading order, with the emphasis on the isospin breaking effect.
Rui Gao   +5 more
doaj   +1 more source

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