Theoretical Description of The He(23S)–H2 Autoionising Collision
System

J. Vojtík

doi:10.1155/lc.11.187

Theoretical Description of The He(23S)–H2 Autoionising Collision System

Laser Chemistry ◽

10.1155/lc.11.187 ◽

1991 ◽

Vol 11 (3-4) ◽

pp. 187-190 ◽

Cited By ~ 4

Author(s):

J. Vojtík

Keyword(s):

Collision Energy ◽

Theoretical Description ◽

Collision System ◽

Electron Spectra

The ionization event in the He(23S)–H2 collision system at the collision energy of 80 me V is described by a modified version of the trajectory surface leaking method. The approach is found to yield an improved picture of the event which is consistent with Penning electron spectra measurements.

Download Full-text

Classical trajectory calculations for collision-energy/electron-energy resolved two-dimensional Penning ionization electron spectra of N2, CO, and CH3CN with metastable He*(2 3S) atoms

The Journal of Chemical Physics ◽

10.1063/1.1503312 ◽

2002 ◽

Vol 117 (12) ◽

pp. 5707-5721 ◽

Cited By ~ 19

Author(s):

Masakazu Yamazaki ◽

Satoshi Maeda ◽

Naoki Kishimoto ◽

Koichi Ohno

Keyword(s):

Electron Energy ◽

Collision Energy ◽

Classical Trajectory ◽

Energy Electron ◽

Two Dimensional ◽

Penning Ionization ◽

Electron Spectra ◽

Trajectory Calculations ◽

Ionization Electron

Download Full-text

ChemInform Abstract: Collision Energy-Resolved Penning Ionization Electron Spectra of Unsaturated Hydrocarbons with He*(2 3S) Metastable Atoms.

ChemInform ◽

10.1002/chin.199237037 ◽

2010 ◽

Vol 23 (37) ◽

pp. no-no

Author(s):

T. TAKAMI ◽

K. OHNO

Keyword(s):

Collision Energy ◽

Unsaturated Hydrocarbons ◽

Penning Ionization ◽

Electron Spectra ◽

Ionization Electron

Download Full-text

Collision energy‐resolved Penning ionization electron spectra of unsaturated hydrocarbons with He*(2 3S) metastable atoms

The Journal of Chemical Physics ◽

10.1063/1.462590 ◽

1992 ◽

Vol 96 (9) ◽

pp. 6523-6530 ◽

Cited By ~ 47

Author(s):

Tomohide Takami ◽

Koichi Ohno

Keyword(s):

Collision Energy ◽

Unsaturated Hydrocarbons ◽

Penning Ionization ◽

Electron Spectra ◽

Ionization Electron

Download Full-text

Collision energy dependence of Penning ionization electron spectra in crossed supersonic beams: He*(2 1S)+N2

The Journal of Chemical Physics ◽

10.1063/1.459655 ◽

1990 ◽

Vol 93 (7) ◽

pp. 5347-5348 ◽

Cited By ~ 26

Author(s):

D. C. Dunlavy ◽

D. W. Martin ◽

P. E. Siska

Keyword(s):

Energy Dependence ◽

Collision Energy ◽

Penning Ionization ◽

Electron Spectra ◽

Ionization Electron ◽

Supersonic Beams

Download Full-text

Recent PHENIX results on high-pT light hadron production

EPJ Web of Conferences ◽

10.1051/epjconf/201818202069 ◽

2018 ◽

Vol 182 ◽

pp. 02069

Author(s):

Dmitry Kotov

Keyword(s):

Heavy Ion ◽

Gluon Plasma ◽

Theoretical Description ◽

Heavy Nuclei ◽

High Transverse Momentum ◽

Collision System ◽

Strong Suppression ◽

Ion Collisions ◽

Light Hadron ◽

State Of Matter

Production of Quark Gluon Plasma (QGP) has been established in central heavy ion collisions (Au+Au, Cu+Cu) at RHIC energies. Observation of strong suppression of hadron yields at high transverse momentum served as one of the most important evidences in favor of production of a new state of matter in such collisions. Recent RHIC run with asymmetric collision system (Cu+Au) provides the means to systematically study suppression pattern of hadrons in different nuclear overlap geometry needed to improve theoretical description of parton energy loss in QGP. Non-zero elliptic flow and a hint of suppression of high pT hadrons suggests that mini-QGP can be formed in collisions of light and heavy nuclei characterized by high charged particle multiplicities. To address the question of collective behavior in small systems RHIC provided series of geometry controlled experiments with highly asymmetric systems (p+Al, p+Au, 3He+Au). The recent results from the PHENIX experiment at RHIC on π0 and η mesons production in asymmetric systems will be presented and discussed.

Download Full-text

The Interpretation of Spectra, Polarization, and Directivity of Solar Hard X-Rays

Symposium - International Astronomical Union ◽

10.1017/s007418090007176x ◽

1975 ◽

Vol 68 ◽

pp. 245-282 ◽

Cited By ~ 1

Author(s):

John C. Brown

Keyword(s):

Thermal Emission ◽

Theoretical Description ◽

Thick Target ◽

X Rays ◽

Fast Electrons ◽

X Ray ◽

Electron Spectra ◽

Bremsstrahlung Emission ◽

Flare Process ◽

Selection Of

The importance of interpretation of hard X-ray burst spectra, polarisation and directivity to the flare process as a whole is emphasised. After critically reviewing observations of these and related burst characteristics, the problems of analytic and numerical inversion of the X-ray spectrum to give the flare electron spectrum are discussed and it is concluded that electron spectra cannot be accurately and unambiguously inferred from their bremsstrahlung emission. Consideration of directional, albedo, and model-dependent effects, on the other hand, shows that none of the X-ray data are at present inconsistent with a power-law electron acceleration spectrum.Characteristics of thick-target, thin-target and electron-trap models of hard X-ray sources are discussed quantitatively and their ability to fit the observations is examined. Selection of a satisfactory model is precluded by lack of both sufficient observations and of adequate theoretical description of models. Nevertheless, it is suggested that redistribution of the flaring atmosphere and the effects of collective energy losses may reconcile even behind-the-limb burst observations and interplanetary electron spectra with a thick-target description (which fits other data well). This is attractive since a thick-target X-ray source makes the minimal demand on flare energy. Even a thick-target, however, requires an embarrassingly large number and energy of fast electrons. Therefore the review is completed by discussing how these requirements might be reduced if thermal emission extended to hard X-ray energies or if multiple reacceleration of electrons occurred.

Download Full-text