Search results for " Decay"
showing 10 items of 1838 documents
"Figure 8b-1" of "Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV"
2023
Transverse momentum dependence of $J/\psi$ and $\psi^{\prime}$ yields in $|y|$ < 0.35, and ${\psi^{\prime}}/{J/\psi}$ ratio together with ratios obtained in other experiments. Uncertainties are point-to-point uncorrelated (uncorr.) (statistical and uncorrelated systematic uncertainties) and correlated systematic (corr.) uncertainties. The global uncertainty is 10%.
"Figure 8b-2" of "Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV"
2023
Transverse momentum dependence of $J/\psi$ and $\psi^{\prime}$ yields in $|y|$ < 0.35, and ${\psi^{\prime}}/{J/\psi}$ ratio together with ratios obtained in other experiments. Uncertainties are point-to-point uncorrelated (uncorr.) (statistical and uncorrelated systematic uncertainties) and correlated systematic (corr.) uncertainties. The global uncertainty is 10%.
"Table 15b" of "Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV"
2023
$J/\psi$ counts obtained from the dimuon decay analysis of four different data sets, determined using the fit function. The S and N following 2006 and 2008 indicate the data sets for the south and north forward arms.
"Table 6a" of "Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV"
2023
$\psi^{\prime}(J/\psi)$ dielectron yield ratio measured at $|y|$ < 0.35 followed by point-to-point uncorrelated (uncorr.) (statistical and uncorrelated systematic uncertainties) and correlated systematic (corr.) uncertainties.
"Figure 21" of "Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV"
2023
Rapidity dependence of the $J/\psi$ yield combining dielectron ($|y|$ < 0.35 - full squares) with dimuon channels (1.2 < $|y|$ < 2.4 - full circles) along with the fits used to estimate the total cross section. Uncertainties are point-to-point uncorrelated (uncorr.) (statistical and uncorrelated systematic uncertainties) and correlated systematic (corr.) uncertainties. The global uncertainty is 10%.
"Figure 8a" of "Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV"
2023
Transverse momentum dependence of $J/\psi$ and $\psi^{\prime}$ yields in $|y|$ < 0.35, and ${\psi^{\prime}}/{J/\psi}$ ratio together with ratios obtained in other experiments. Uncertainties are point-to-point uncorrelated (uncorr.) (statistical and uncorrelated systematic uncertainties) and correlated systematic (corr.) uncertainties. The global uncertainty is 10%.
Beta-spectrum shapes of forbidden β decays
2018
The neutrinoless [Formula: see text] decay of atomic nuclei continues to attract fervent interest due to its potential to confirm the possible Majorana nature of the neutrino, and thus the nonconservation of the lepton number. At the same time, the direct dark matter experiments are looking for weakly interacting massive particles (WIMPs) through their scattering on nuclei. The neutrino-oscillation experiments on reactor antineutrinos base their analyses on speculations of [Formula: see text]-spectrum shapes of nuclear decays, thus leading to the notorious “reactor antineutrino anomaly.” In all these experimental efforts, one encounters the problem of [Formula: see text]-spectrum shapes of…
First results of the experiment to search for 2β decay of 106Cd with the help of 106CdWO4 crystal scintillators
2011
An experiment to search for 2β processes in 106Cd with the help of 106CdWO4 crystal scintillator (mass of 215 g), enriched in 106Cd up to 66 %, is in progress at the Gran Sasso National Laboratories of the INFN (Italy). After 1320 h of data taking, limits on double beta processes in 106Cd have been established on the level of 1019 − 1020 yr, in particular (all the results at 90 % C.L.): T1/2(0ν2ε) > 3.6 · 1020 yr, T1/2(2νεβ+) > 7.2 · 1019 yr, and T1/2(2ν2β+) > 2.5 · 1020 yr. Resonant 0ν2ε processes have been restricted as T1/2(0ν2K) > 1.4 · 1020 yr and T1/2(0νLK) > 3.2 · 1020 yr. A possible resonant enhancement of the 0ν2ε processes is estimated in the framework of the QRPA approach.
0νββ and 2νββ nuclear matrix elements in the interacting boson model with isospin restoration
2015
We introduce a method for isospin restoration in the calculation of nuclear matrix elements (NMEs) for 0νββ and 2νββ decay within the framework of the microscopic interacting boson model (IBM-2). With this method, we calculate the NMEs for all processes of interest in 0νβ−β− and 2νβ−β− and in 0νβ+β+, 0νECβ+, R0νECEC, 2νβ+β+, 2νECβ+, and 2νECEC. With this method, the Fermi matrix elements for 2νββ vanish, and those for 0νββ are considerably reduced. peerReviewed
Neutrino-nuclear responses for astro-neutrinos, single beta decays and double beta decays
2019
Neutrino–nuclear responses associated with astro-neutrinos, single beta decays and double beta decays are crucial in studies of neutrino properties of interest for astro-particle physics. The present report reviews briefly recent studies of the neutrino–nuclear responses from both experimental and theoretical points of view in order to obtain a consistent understanding of the many facets of the neutrino–nuclear responses. Subjects discussed in this review include (i) experimental studies of neutrino–nuclear responses by means of single beta decays, charge-exchange nuclear reactions, muon- photon- and neutrino–nuclear reactions, and nucleon-transfer reactions, (ii) implications of and discus…