Collision energy dependence of the cross sections for production of CN(B 2Σ+) in the reactions of Ar(3P0,2) and Kr(3P0,2) with BrCN

1991 ◽  
Vol 95 (2) ◽  
pp. 1011-1019 ◽  
Author(s):  
Takashi Nagata ◽  
Tamotsu Kondow ◽  
Kozo Kuchitsu ◽  
Kiyohiko Tabayashi ◽  
Kosuke Shobatake
Keyword(s):  
Energy Dependence ◽  
Cross Sections ◽  
Collision Energy ◽  
The Cross

DIFFRACTION AND VECTOR MESON PRODUCTION

2004 ◽  
Vol 19 (07) ◽  
pp. 1099-1110 ◽  
Author(s):  
Y. YAMAZAKI
Keyword(s):  
Vector Meson ◽  
Energy Dependence ◽  
Cross Sections ◽  
Meson Production ◽  
High Energy ◽  
Vector Meson Production ◽  
Diffractive Process ◽  
The Cross

A review is given of the measurements of the diffractive process in recent years from two high-energy colliders, the HERA ep collider and the Tevatron [Formula: see text] collider. The energy dependence of the cross sections and the factorisation properties of diffractive processes are discussed.

Energy dependence of the cross sections for the and the reactions

1975 ◽  
Vol 239 (2) ◽  
pp. 260-270 ◽  
Author(s):  
V. Valković ◽  
Ď. Miljanlć ◽  
R.B. Liebert ◽  
G.C. Phillips
Keyword(s):  
Energy Dependence ◽  
Cross Sections ◽  
The Cross

The dissociation of fast H 2 + ions by hydrogen

1960 ◽  
Vol 256 (1286) ◽  
pp. 416-426 ◽  
Keyword(s):  
Triplet State ◽  
Energy Dependence ◽  
Cross Sections ◽  
Large Fraction ◽  
Exchange Process ◽  
Hydrogen Gas ◽  
High Energies ◽  
Scintillation Crystals ◽  
The Cross ◽  
Simple Dissociation

H 2 + ions of energy 100 to 800 keV have been passed through hydrogen gas and the cross-sections for the following four processes determined : (1) H 2 + → H + + H O , (2) H 2 + → H + + H + , (3) H 2 + → H O + H O , (4) H 2 + → H 2 O . A magnetic field was used to separate the fast dissociation products of different e / m , and CsI(Tl) scintillation crystals were used as detectors. Double-height pulses resulted when two particles of the same e / m , simultaneously entered one of the crystals and were clearly resolved from single pulses. Processes (3) and (4) were separated by moving a fine slit across the neutral-particle counter which thus counted only H 2 O particles as double pulses. The partial cross-sections for processes (1) and (2) show an E -1 dependence at high energies. The energy dependence is less marked below 300 keV, where the Born approximation might be expected to be invalid. The partial cross-sections for processes (3) and (4) show the strong energy dependence characteristic of an electron-exchange process. The angular distribution for process (3) is consistent with the reaction proceeding via the 1 3 Ʃ u repulsive triplet state. The large fraction of the capture reactions proceeding this way (70%), is reasonable considering the high probability of formation in the triplet state. The large values of the cross-sections for processes other than simple dissociation account, in part, for the considerable discrepancies between the results of other workers.

scholarly journals Investigating Scalar Unparticle Production at Collisions with Polarized Beams in Unparticle Physics

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Le Nhu Thuc ◽  
Dao Thi Le Thuy
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Z Boson ◽  
Collision Energy ◽  
High Energy ◽  
Polarized Beams ◽  
Boson Exchange ◽  
The Cross ◽  
Muon Colliders ◽  
Energy Frontier

Scalar unparticle production in the process is studied from unparticle physics perspective. We have calculated and evaluated the cross sections for muon and Z boson exchange when the  beams are initially polarized. Numerical calculations show that the cross section of collisions depends strongly on the polarized condition of the initial beams and the collision energy . The results are plotted in the energy reach available at the present accelerators and the future high energy frontier muon colliders as shown in the scheme by Muon Accelerator Program (MAP) and other different colliders.

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