Spectroscopic Notation Research Articles

A Review of Spectroscopic Information in the Visible and Ultraviolet Region for Diatomic Molecules of Astrophysical Interest

Abstract Spectroscopic information in the region approximately between 950 A and 5000 A for 42 diatomic molecules of astrophysical interest is summarized from laboratory data and a general literature survey. Three tables are generated. The first one contains the measured lifetimes from the laboratories, electronic transitions, band and line designations, Franck-Condon factors, calculated line strengths, calculated vibrational and rotational oscillator strengths. The second table has transitions, rotational lines in wavelengths ascending order. The thhd table lists the electronic transitions in spectroscopic notation and references of the second table. These data are useful in selecting transitions in searches for possible molecular species in the interstellar medium. This compilation arose primarily through the expressed needs of the OAO Copernicus satellite program at the Princeton University Observatory.

A new version of AAKF (Reduced Tensor Matrix Elements) adapted to spectroscopic notation

Title of program: REDUCED TENSOR MATRIX ELEMENTS 2 Catalogue number: AAKP Program obtainable from: CPC Program Library, Queen's University of Belfast N. Ireland (see application form in this issue) Computer: Installation: IBM 360/75 University of Waterloo, Waterloo, Ont. Canada Operating system: OS/360 HASP II Programming languages used: FORTRAN IV High speed store required: 102 K bytes No. of bits per byte: 8 Overlay structure: None Other peripherals used: Card reader, line printer No. of cards in combined program and test deck: 1524 Card punching code: EBCDIC 029 CPC Library subprograms used: Cat. numbers Titles Refs. in C.P.C. ACQB P SHELL CFP 1 (1969) 15 ACRN A NEW D SHELL CFP 6 (1973) 88 AAGD NJSYM 1 (1970) 241, 2 (1971) 173 AAGD0001 ADAPT NJSYM FOR WEIGHTS 2 (1971) 180 AAGD0002 ADAPT TO INTEGER ARITHMETIC 5 (1973) 161 Reference to other published version of this program: Catalogue number: AAKF; Title: REDUCED TENSOR MATRIX ELEMENTS; Ref. in C.P.C.: 6 (1973) 132.

Analysis of the K ∗(1320) and L-meson produced in 10 GeV/c K −p interactions

Two (Kππ) enhancements called K ∗(1320) and the L-meson are observed in 10 GeV/ c K −p interactions, with masses of (1325±6) and (1785±12) MeV and widths of (186±15) and (127±43) MeV, respectively. A peak near 1790 MeV is also observed in the (Kπππ) − mass distribution. Evidence for a (Kω) decay mode of the L-meson is presented. It is shown that the K ∗(1320) peak is not a kinematic effect of the Deck-type. A maximum likelihood analysis of the (Kππ) − channels indicates that the favoured spin-parity assignment for K ∗(1320) is J P = 1 + (with 2 − less probable) and for the L-meson J P = 1 +, 2 −, 3 +3.. Decay branching ratios into (Kππ), Kϱ, K ∗(890)π and K ∗(1420)π are also obtained for both resonances, as well as their production cross sections. Arguments are given to prove that the isospin of both resonances is I = 1 2 . All the results are consistent with the interpretation that these resonances are produced by Pomeron exchange. A quark-model speculation leads to a classification of the L-meson as belonging to a nonet with C = −1, probably 3D 2 or 1F 3 in spectroscopic notation.