نتایج جستجو برای: nuclear parity

تعداد نتایج: 262886  

2005
Diane M. Markoff

Our understanding of hadronic parity violation is far from clear despite nearly 50 years of theoretical and experimental progress. Measurements of low-energy parity-violating observables in nuclear systems are the only accessible means to study the flavor-conserving weak hadronic interaction. To reduce the uncertainties from nuclear effects, experiments in the few and two-body system are essent...

Journal: :Physical Review C 2022

Largely enhanced parity-violating effects observed in compound resonances induced by epithermal neutrons are currently attributed to the mixing of parity-unfavored partial amplitudes entrance channel states. Furthermore, it is proposed that same mechanism enhances parity-violation also breaking time-reversal-invariance nucleus. The entrance-channel induces energy-dependent spin-angular correlat...

Journal: :Physical review 2022

We study the important, yet widely overlooked, role of gluons for spin transport with a connection to local parity violation in quark gluon plasmas. employ formalism quantum kinetic theory quarks weakly coupled chromodynamics derive source terms polarization. These involve parity-odd correlators dynamically generated color fields near-equilibrium plasmas and give rise locally fluctuating axial ...

Journal: :Physical review letters 1996
Auerbach Flambaum Spevak

Parity and time invariance violating forces produce collective Pand Todd moments in nuclei with static octupole deformation. Collective Schiff moment, electric octupole and dipole and also magnetic quadrupole appear due to the mixing of rotational levels of opposite parity and can exceed singleparticle moments by more than a factor of 100. This enhancement is due to two factors, the collective ...

Journal: :HNPS Advances in Nuclear Physics 2022

Nuclear level densities (NLDs) are key ingredients in calculations of neutron capture rates for rich isotopes nuclear astrophysics applications. Available experimental NLDs limited mainly to nuclei near stability. Therefore, theoretical models employed predict the nuclei. Here we present a methodology calculating spin- and parity- dependent using methods statistical spectroscopy, based on Shell...

2001
A. C. Hayes Luca Zanini

In the last decade, the scattering of polarized neutrons on compound nucleus resonances proved to be a powerful experimental technique for probing nuclear parity violation. Longitudinal analyzing powers in neutron transmission measurements on p-wave resonances in nuclei such as La and Th were found to be as large as 10%. Here we examine the possibilities of carrying out a parallel program to me...

Journal: :Nuclear Physics 2022

The spin and parity ($J^{\pi}$) assignments in even-even nuclei were reviewed across the nuclear chart using Evaluated Nuclear Structure Data File (ENSDF). prevalence of 2$^+_1$ first or lowest excited states is confirmed. properties 0$^+_2$, 1$^-_1$, 3$^-_1$ reexamined ENSDF data evaluation procedures. $J^{\pi}$ systematic trends correlations between level quantum numbers physics phenomena are...

2008
B Desplanques

Knowledge about parity-violating effects both from theory and experiment is reviewed. Further information that could be obtained from measurements of nuclear anapole moments is discussed.

2000
VLADIMIR GUDKOV

For a long time heavy nuclei were considered for the study of symmetry violations mostly due to enhancement factors related to the complex nuclear structure. Classical examples are experiments that measure parity violating correlations in nuclear decays and in nuclear reactions. It is well known that due to nuclear enhancements the parity violating effects in nuclei could be as large as ∼ 10 in...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید