scholarly journals CHARM SPECTROSCOPY FROM B FACTORIES

2011 ◽  
Vol 02 ◽  
pp. 158-162
Author(s):  
◽  
J. BENITEZ
Keyword(s):  
Angular Momentum ◽  
Excited States ◽  
Orbital Angular Momentum ◽  
Precision Measurement ◽  
D Mesons ◽  
Final States

A brief review of the excited Ds and D mesons is presented. A precision measurement of the Ds1(2536) mass and width parameters is reported by BABAR. Finally, a recent BABAR study of the Dπ and D*π final states shows first observations of the radial excitations of the D0, D*0, and D*+, as well as the L = 2 excited states of the D0 and D+, where L is the orbital angular momentum of the quarks.

scholarly journals Hadronic currents and form factors in three-body semileptonic $$\tau $$ decays

2021 ◽  
Vol 81 (12) ◽  
Author(s):  
Fabian Krinner ◽  
Stephan Paul
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Dipole Moments ◽  
Form Factors ◽  
Decay Chain ◽  
Full Description ◽  
Final States ◽  
Arbitrary Mass ◽  
Quantum Numbers ◽  
Three Body

AbstractThree-body semileptonic $$\tau $$ τ -decays offer a path to understand the properties of light hadronic systems and CP symmetry violations through searches for electric dipole moments. In studies of electro-weak physics, the hadronic part of the final states has traditionally been described using the language of form factors. Spectroscopic information, resolved in terms of orbital angular momentum quantum-numbers, is best being derived from an explicit decomposition of the hadronic current in the orbital angular momentum basis. Motivated by the upcoming large data samples from $$\mathrm {B}$$ B factories, we present the full description of the hadronic currents decomposed into quantum numbers of the hadronic final state using the isobar picture. We present formulas for orbital angular momenta up to three and apply the rules derived from hadron spectroscopy to formulate the decay chain of hadronic three-body systems of arbitrary mass. We also translate this formalism to the language of form factors and thereby correct insufficiencies found in previous analyses of three-body hadronic final states.

The chemical shift. II. A study of 14N chemical shifts in nitrogen–oxygen–halogen compounds

1970 ◽  
Vol 48 (22) ◽  
pp. 3504-3509 ◽  
Author(s):  
F. Aubke ◽  
F. G. Herring ◽  
A. M. Qureshi
Keyword(s):  
Angular Momentum ◽  
Chemical Shift ◽  
Excited States ◽  
Orbital Angular Momentum ◽  
Chemical Shifts ◽  
Hartree Fock ◽  
Halogen Compounds ◽  
Good Agreement

The chemical shifts of the 14N nucleus in a number of nitrogen–halogen–oxygen compounds have been estimated within the framework of the i.n.d.o.-l.c.a.o.-s.c.f. method using approximate perturbed Hartree–Fock theory. Generally good agreement with experiment is achieved. The calculations indicate that the variation in 14N chemical shift is due to either changes in orbital angular momentum, or to the presence of low lying excited states, or to a combination of both effects.

scholarly journals Mass formula for light nonstrange mesons and Regge trajectories in quark model

2017 ◽  
Vol 32 (25) ◽  
pp. 1750153 ◽  
Author(s):  
Duojie Jia ◽  
Cheng-Qun Pang ◽  
Atsushi Hosaka
Keyword(s):  
Experimental Data ◽  
Angular Momentum ◽  
Quark Model ◽  
Excited States ◽  
Orbital Angular Momentum ◽  
Mass Formula ◽  
Field Method ◽  
Auxiliary Field ◽  
Regge Trajectories ◽  
Light Mesons

We study the Regge-like spectra of light mesons in a relativized quark model. An analytical mass formula is presented for the light unflavored mesons with the help of auxiliary field method, by which a quasi-linear Regge–Chew–Frautschi plot is predicted for the orbitally excited states. We show that the trajectory slope is proportional to the inverse of the confining parameter [Formula: see text] when the orbital angular momentum [Formula: see text] is large. The result is tested against the experimental data of the spectra of the meson families [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] in the [Formula: see text] planes, with the fitted parameters consistent with that in the literatures.

Structural properties of Na atom under impenetrable spatialconfinement

2021 ◽  
Author(s):  
Santanu Mondal ◽  
K.D. Sen ◽  
Jayanta K. Saha
Keyword(s):  
Angular Momentum ◽  
Structural Properties ◽  
Excited States ◽  
Orbital Angular Momentum ◽  
Valence Electron ◽  
Model Potential ◽  
The Core ◽  
Quantum Numbers

The structural properties and radial distributions of valence electron in different excited levels of Na atom [n = 3 − 5, l = 0 − 4; n and l being the principal and orbital angular momentum quantum numbers, respectively] under impenetrable spherical confinement has been studied, where the interaction between the frozen core and the valence electron is mimicked by model potential available in the literature. The effect of the core on the valence electron has been investigated by estimating the structural properties of Na10+ ion under similar confinement. Scaled radial densities at the nucleus and related ratios are presented for few excited states of the valence electron of Na atom and the corresponding analytic results have been tested numerically.

Advanced Mode Unity Using Loop Antennas Proximate to Reflector for Orbital Angular Momentum Communication

2018 ◽  
Author(s):  
Ryohei Yamagishi ◽  
Hiroto Otsuka ◽  
Ryo Ishikawa ◽  
Akira Saitou ◽  
Hiroshi Suzuki ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Loop Antennas
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