Results 91 to 100 of about 22,500 (255)

Spin-isospin surface responses

open access: yesPhysics Letters B, 1987
Abstract The excitation of spin-isospin modes at the surface of a nucleus is investigated in an RPA framework, utilizing a harmonic oscillator basis. The effect of the mixing between the spin-longitudinal and spin-transverse couplings is found to play an important role in explaining the absence of contrast in the ratio between the longitudinal and ...
ALBERICO, Wanda Maria   +4 more
openaire   +1 more source

Simulation of a Three‐Nucleons System Transition on Quantum Circuits

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 5, May 2025.
A general procedure is presented to calculate the transition probability for two nuclear states and a transition operator. The ground state is approximated through the variational quantum eigensolver and the first excited one using more sophisticated variational algorithms.
Luca Nigro, Carlo Barbieri, Enrico Prati
wiley   +1 more source

Heisenberg uncertainty inequality and breaking of isospin symmetry in atomic nuclei

open access: yesPhysical Review Research
The Heisenberg uncertainty inequality is used to derive a rigorous lower bound to the amount of isospin impurities in N=Z atomic nuclei, caused by the violation of isospin symmetry.
Sandro Stringari
doaj   +1 more source

Isospin analysis of charmless B-meson decays [PDF]

open access: yes, 2017
We discuss the determination of the CKM angle $$\alpha $$α using the non-leptonic two-body decays $$B\rightarrow \pi \pi $$B→ππ, $$B\rightarrow \rho \rho $$B→ρρ and $$B\rightarrow \rho \pi $$B→ρπ using the latest data available. We illustrate the methods
J. Charles   +3 more
semanticscholar   +1 more source

Dualities in dense quark matter with isospin, chiral, and chiral isospin imbalance in the framework of the large- Nc limit of the NJL4 model [PDF]

open access: yesPhysical Review D, 2018
In this paper the phase structure of the dense quark matter has been investigated in the presence of baryon ${\mu}_B$, isospin ${\mu}_I$, chiral ${\mu}_{5}$ and chiral isospin ${\mu}_{I5}$ chemical potentials in the framework of Nambu--Jona-Lasinio model.
T. Khunjua, K. Klimenko, R. Zhokhov
semanticscholar   +1 more source

A novel mouse model of upper tract urothelial carcinoma highlights the impact of dietary intervention on gut microbiota and carcinogenesis prevention despite carcinogen exposure

open access: yesInternational Journal of Cancer, Volume 156, Issue 7, Page 1439-1456, 1 April 2025.
What's new? The BBN‐driven bladder cancer (BC) mouse model has been commonly used for more than 50 years. However, the mechanisms underlying the selective induction of BC over upper urinary tract urothelial carcinoma (UTUC) remain unclear. Here, the authors established a non‐genetically modified mouse strain with a higher incidence of UTUC following ...
Akinaru Yamamoto   +30 more
wiley   +1 more source

Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities

open access: yesPhysics Letters B, 2014
Within two different frameworks of isospin-dependent transport model, effect of nuclear symmetry energy at supradensities on the isospin-fractionation (IsoF) was investigated.
Wenmei Guo   +5 more
doaj   +1 more source

Generalization of the radial nuclear two-body potentials and new derivation to find their matrix elements [PDF]

open access: yesKirkuk Journal of Science, 2011
The text of this paper covers a generalization of the radial two-body nuclear potentials and then derivation of a new formula to evaluate their matrix element.
Aziz H. Fatah
doaj   +1 more source

Nuclear Symmetry Energy and the Breaking of the Isospin Symmetry: How Do They Reconcile with Each Other? [PDF]

open access: yesPhysical Review Letters, 2018
We analyze and propose a solution to the apparent inconsistency between our current knowledge of the equation of state of asymmetric nuclear matter, the energy of the isobaric analog state (IAS) in a heavy nucleus such as ^{208}Pb, and the isospin ...
X. Roca-Maza   +11 more
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

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