Product fine structure state populations and nonadiabatic dissociation dynamics: Cl*(2P1/2)/Cl(2P3/2) branching ratio in the visible and near ultraviolet photodissociation of nitrosyl chloride

1995 ◽  
Vol 103 (22) ◽  
pp. 9653-9660 ◽  
Author(s):  
Jianying Cao ◽  
Yifei Wang ◽  
Charles X. W. Qian
Keyword(s):  
Fine Structure ◽  
Branching Ratio ◽  
Nitrosyl Chloride ◽  
Ultraviolet Photodissociation ◽  
Near Ultraviolet ◽  
Dissociation Dynamics ◽  
Structure State

scholarly journals Measurement of the running of the fine structure constant below 1 GeV with the KLOE detector

2019 ◽  
Vol 218 ◽  
pp. 02012
Author(s):  
Graziano Venanzoni
Keyword(s):  
Fine Structure ◽  
Energy Region ◽  
Direct Evidence ◽  
Branching Ratio ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Recent Measurement ◽  
Single Measurement ◽  
Lepton Universality ◽  
Hadronic Contribution

I will report on the recent measurement of the fine structure constant below 1 GeV with the KLOE detector. It represents the first measurement of the running of α(s) in this energy region. Our results show a more than 5σ significance of the hadronic contribution to the running of α(s), which is the strongest direct evidence both in time-and space-like regions achieved in a single measurement. From a fit of the real part of Δα(s) and assuming the lepton universality the branching ratio BR(ω → µ+µ−) = (6.6 ± 1.4stat ± 1.7syst) · 10−5 has been determined

Fine-structure state resolved rotationally inelastic collisions of CH(A [sup 2]Δ,v=0) with Ar: A combined experimental and theoretical study

2001 ◽  
Vol 114 (10) ◽  
pp. 4479 ◽  
Author(s):  
M. Kind ◽  
F. Stuhl ◽  
Yi-Ren Tzeng ◽  
Millard H. Alexander ◽  
Paul J. Dagdigian
Keyword(s):  
Fine Structure ◽  
Theoretical Study ◽  
Inelastic Collisions ◽  
Structure State

A reinvestigation of the near-ultraviolet photodissociation dynamics of the methyl radical

1994 ◽  
Vol 227 (4-5) ◽  
pp. 456-460 ◽  
Author(s):  
Steven H.S. Wilson ◽  
Jonathan D. Howe ◽  
Keith N. Rosser ◽  
Michael N.R. Ashfold ◽  
Richard N. Dixon
Keyword(s):  
Methyl Radical ◽  
Ultraviolet Photodissociation ◽  
Near Ultraviolet

Non-adiabatic photodissociation dynamics of BrCl

1994 ◽  
Vol 72 (3) ◽  
pp. 758-761 ◽  
Author(s):  
Jianying Cao ◽  
Hans-Peter Loock ◽  
Charles X.W. Qian
Keyword(s):  
Laser Radiation ◽  
Potential Energy ◽  
Multiphoton Ionization ◽  
Branching Ratio ◽  
Tunable Laser ◽  
Branching Ratios ◽  
Excitation Wavelength ◽  
Dissociation Dynamics ◽  
Adiabatic Transitions ◽  
Insight Into

Nozzle-cooled BrCl was excited with tunable laser radiation at selected wavelengths between 389 and 500 nm. The chlorine atomic fragments in their Cl*(2P1/2) and Cl(2P3/2) state were stated-selectively probed by resonance-enhanced multiphoton ionization. The branching ratio (Cl*/(Cl + Cl*)) was measured as a function of the excitation wavelength. The relative Cl* yield reaches a maximum at around λphot = 460 nm. Decomposition of these branching ratios into Cl and Cl* photofragment yield spectra provides insight into the BrCl B-state 3П(0+) non-adiabatic dissociation dynamics. Our results suggest that the dissociation mechanism involves non-adiabatic transitions among 0+ potential energy curves.

Photofragmentation of ClNO in the A-Band:  Velocity Distribution and Fine-Structure Branching Ratio of Cl(2Pj) Atoms

1996 ◽  
Vol 100 (30) ◽  
pp. 12321-12328 ◽  
Author(s):  
Vladimir Skorokhodov ◽  
Yoshihiro Sato ◽  
Kunihiro Suto ◽  
Yutaka Matsumi ◽  
Masahiro Kawasaki
Keyword(s):  
Fine Structure ◽  
Velocity Distribution ◽  
Branching Ratio

scholarly journals The near ultraviolet photodissociation dynamics of 2- and 3-substituted thiophenols: Geometric vs. electronic structure effects

2017 ◽  
Vol 147 (1) ◽  
pp. 013923 ◽  
Author(s):  
Barbara Marchetti ◽  
Tolga N. V. Karsili ◽  
Maicol Cipriani ◽  
Christopher S. Hansen ◽  
Michael N. R. Ashfold
Keyword(s):  
Electronic Structure ◽  
Ultraviolet Photodissociation ◽  
Near Ultraviolet

FINE STRUCTURE MAPPING IN YEAST WITH SUNLAMP RADIATION

Genetics ◽  
1974 ◽  
Vol 76 (4) ◽  
pp. 723-733
Author(s):  
Christopher W Lawrence ◽  
Roshan Christensen
Keyword(s):  
Fine Structure ◽  
Dose Response ◽  
Gamma Ray ◽  
X Rays ◽  
Structure Mapping ◽  
Mapping Procedure ◽  
X Ray ◽  
Linear Dose ◽  
Near Ultraviolet ◽  
Ionizing Radiations

ABSTRACT The X-ray mapping procedure of Manney and Mortimer (1964) is the most widely applicable and convenient method for fine structure analysis in yeast, but suffers the disadvantage that suitable X-ray machines or gamma ray sources are very expensive. Although many other recombinogens are known, none gives a linear dose-response like X-rays and few are as convenient or give as reproducible results. Experiments with Saccharomyces cerevisiae reported in this paper show, however, that the near-ultraviolet radiation emitted by fluorescent sunlamps gives linear dose-response relations, as reproducible results as ionizing radiations, and map distances which correlate highly with those obtained by using 60Co gamma rays. It is suggested that this convenient recombinogen may be a suitable low-cost substitute for ionizing radiations in fine structure mapping.

Near ultraviolet photodissociation of allene and propyne

2002 ◽  
Vol 116 (3) ◽  
pp. 906-912 ◽  
Author(s):  
Rafay H. Qadiri ◽  
Emma J. Feltham ◽  
Emily E. H. Cottrill ◽  
Nori Taniguchi ◽  
Michael N. R. Ashfold
Keyword(s):  
Ultraviolet Photodissociation ◽  
Near Ultraviolet
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