EXCLUSIVE D+D- PAIR PRODUCTION IN THE AA → AAD+D- REACTION

2011 ◽  
Vol 26 (03n04) ◽  
pp. 677-678
Author(s):  
MARTA ŁUSZCZAK ◽  
ANTONI SZCZUREK
Keyword(s):  
Fourier Transform ◽  
Charge Density ◽  
Pair Production ◽  
Cross Sections ◽  
Form Factors ◽  
Charge Form ◽  
Phenix Collaboration ◽  
The Cross ◽  
Meson Pair

The cross sections for exclusive D+D- meson pair production in nucleus - nucleus collisions are calculated and differential distributions are shown. Realistic (Fourier transform of the charge density) charge form factors of nuclei are used. Absorption effects are included. Predictions for the STAR and PHENIX collaboration measurements at RHIC are presented.

scholarly journals Evaluation of the Compton (Incoherent) and Rayleigh (Coherent) Differential Cross Sections of Scattering for Rhodium 103Rh45 and Tantalum181Ta73 by Employing CSC model

2012 ◽  
Vol 9 (3) ◽  
pp. 554-558 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Form Factors ◽  
Differential Cross Sections ◽  
The Cross

The differential cross section for the Rhodium and Tantalum has been calculated by using the Cross Section Calculations (CSC) in range of energy(1keV-1MeV) . This calculations based on the programming of the Klein-Nashina and Rayleigh Equations. Atomic form factors as well as the coherent functions in Fortran90 language Machine proved very fast an accurate results and the possibility of application of such model to obtain the total coefficient for any elements or compounds.

The effects of nucleus form factors on the electromagnetically produced heavy lepton pairs

2016 ◽  
Vol 25 (02) ◽  
pp. 1650006 ◽  
Author(s):  
M. Y. Şengül
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Form Factors ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Lepton Pairs ◽  
Heavy Lepton ◽  
Ion Collisions ◽  
Realistic Form ◽  
The Cross

In this paper, the effects of different nucleus form factors to the cross-sections of electromagnetically produced heavy lepton pairs such as muons and tauons from the ultra-relativistic heavy ion collisions have been calculated. Nucleus form factors play important roles in the calculation of the cross-sections, because the Compton wavelengths of muon and tauon are comparable to the radius of the colliding ions. Some realistic form factors in these calculations have been used and compared the results among them. It has been shown that nucleus form factors reduce the cross-section calculations for muon and tauon pair production very strongly especially at RHIC energies.

EXCLUSIVE AND INCLUSIVE ANTI-NEUTRINO REACTIONS IN 3He

1999 ◽  
Vol 08 (03) ◽  
pp. 197-212 ◽  
Author(s):  
S. L. MINTZ ◽  
G. M. GERSTNER ◽  
M. A. BARNETT ◽  
M. POURKAVIANI
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Neutrino Flux ◽  
Form Factors ◽  
Differential Cross Sections ◽  
Individual Form ◽  
The Cross ◽  
The Individual ◽  
Sharp Minima

Cross sections for the exclusive reactions, [Formula: see text], and [Formula: see text] are obtained from threshold to 1 GeV. We find the contributions of the individual form factors as well as all interference terms to the cross sections of both of these reactions. We find that the cross sections for these processes are relatively large making them possible candidates for experiments. We also obtain differential cross sections for suitable energies for these reactions and note the presence of sharp minima which might be observable with a well peaked neutrino flux. We also estimate the cross sections for the inclusive reactions [Formula: see text] and [Formula: see text] from threshold to a few hundred MeV.

scholarly journals Top Partner Production at e+e- Collider in the Littlest Higgs Model with T-Parity

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Haiyan Wang ◽  
Bingfang Yang
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
High Energy ◽  
Higgs Model ◽  
Dilepton Channel ◽  
Associated Production ◽  
Production Processes ◽  
The Future ◽  
Signal Significance ◽  
The Cross

In the framework of the littlest Higgs Model with T-parity, we discuss the top partner production at future e+e- collider. We calculate the cross sections of the top partner production processes and associated production processes of Higgs and top partner under current constraints. Then, we investigate the observability of the T-odd top partner pair production through the process e+e-→T-T¯-→tt¯AHAH in the tt¯ dilepton channel for two T-odd top partner masses mT-=603  (708) GeV at s=1.5 TeV. We analyze the signal significance depending on the integrated luminosity and find that this signal is promising at the future high energy e+e- collider.

Nuclear structure dependence in analyzing powers?

1980 ◽  
Vol 58 (12) ◽  
pp. 1686-1690 ◽  
Author(s):  
W. R. Falk
Keyword(s):  
Nuclear Structure ◽  
Cross Sections ◽  
Form Factors ◽  
Wave Functions ◽  
Angular Distributions ◽  
Structure Dependence ◽  
Analyzing Powers ◽  
Wide Range ◽  
Configuration Mixing ◽  
The Cross

Calculations of the angular distributions of the cross-sections and analyzing powers in the [Formula: see text] Al reaction have been made using microscopic form factors. A wide range of shapes of the microscopic form factors, simulating different degrees of configuration mixing in the nuclear wave functions, fail to provide angular distributions of the analyzing powers that agree with experiment for the 2.73 and 4.41 MeV, 5/2+ states.

scholarly journals The influence of the scalar unparticle on the W-pair production at ILC in the Randall–Sundrum model

2020 ◽  
Vol 35 (25) ◽  
pp. 2050217
Author(s):  
Dang Van Soa ◽  
Bui Thi Ha Giang
Keyword(s):  
Standard Model ◽  
Pair Production ◽  
Cross Sections ◽  
Production Cross ◽  
The Standard Model ◽  
Linear Colliders ◽  
The Cross ◽  
Scaling Dimension

An attempt is made to present the contribution of the scalar unparticle on some scattering processes in the Randall–Sundrum (RS) model. We have evaluated the contribution of the scalar unparticle on the W-pair production cross-sections at International Linear Colliders (ILC). The results indicate that at the low values of the scaling dimension and the bounds on scale [Formula: see text] are around few TeV, the cross-sections are much enhanced, which is quite comparable with the W-production in the Standard Model and hence it is worthwhile to explore in future colliders.

The Neutrino Reaction in 3H

1998 ◽  
Vol 07 (02) ◽  
pp. 275-285
Author(s):  
S. L. Mintz ◽  
G. M. Gerstner ◽  
M. A. Barnett ◽  
M. Pourkaviani
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Form Factors ◽  
Individual Form ◽  
Neutrino Reaction ◽  
The Cross ◽  
The Individual ◽  
Sharp Minima

We calculate the cross sections for the reactions, νe+3 H → e-+3 He , and νμ+3 H → μ-+3 He from threshold to 1 GeV. We obtain typical contributions of the individual form factors as well as the interference terms to the cross sections. We find that the cross sections for these processes are extremely large for a number of reasons, making them worthy of consideration for possible experiments. We also obtain a typical differential cross section and note the presence of sharp minima for high neutrino energies.

scholarly journals PRELIMINARY MEASUREMENTS OF THE QUARK-ANTIQUARK PRODUCTION CROSS-SECTION IN E+E- ANNIHILATIONS UP TO LEP2 HIGHEST ENERGIES

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 342-344
Author(s):  
GIUSEPPE DELLA RICCA
Keyword(s):  
Standard Model ◽  
Pair Production ◽  
Cross Section ◽  
Cross Sections ◽  
Production Cross Section ◽  
Production Cross ◽  
Delphi Detector ◽  
The Standard Model ◽  
Model Predictions ◽  
The Cross

Data collected with the DELPHI detector at [Formula: see text] up to LEP2 highest energies (i.e. exceeding 205 GeV) have been used to extract preliminary values of the cross-sections for quark-antiquark pair-production in e + e - annihilations. The values found were used to test the Standard Model predictions and to seek for physics beyond it.

scholarly journals Hadron tomography in meson-pair production and gravitational form factors

2019 ◽  
Author(s):  
Qin-Tao Song ◽  
S. Kumano ◽  
Oleg Teryaev
Keyword(s):  
Pair Production ◽  
Form Factors ◽  
Meson Pair
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