scholarly journals Two-loop Bhabha scattering at high energy beyond leading power approximation

2016 ◽  
Vol 760 ◽  
pp. 816-822 ◽  
Author(s):  
Alexander A. Penin ◽  
Nikolai Zerf
Keyword(s):  
High Energy ◽  
Bhabha Scattering ◽  
Power Approximation

scholarly journals Lorentz violation, gravitoelectromagnetism and Bhabha scattering at finite temperature

2018 ◽  
Vol 33 (10n11) ◽  
pp. 1850061 ◽  
Author(s):  
A. F. Santos ◽  
Faqir C. Khanna
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Finite Temperature ◽  
Lorentz Violation ◽  
High Energy ◽  
Gravitation Field ◽  
Bhabha Scattering ◽  
Thermo Field Dynamics ◽  
Very High Energy

Gravitoelectromagnetism (GEM) is an approach for the gravitation field that is described using the formulation and terminology similar to that of electromagnetism. The Lorentz violation is considered in the formulation of GEM that is covariant in its form. In practice, such a small violation of the Lorentz symmetry may be expected in a unified theory at very high energy. In this paper, a non-minimal coupling term, which exhibits Lorentz violation, is added as a new term in the covariant form. The differential cross-section for Bhabha scattering in the GEM framework at finite temperature is calculated that includes Lorentz violation. The Thermo Field Dynamics (TFD) formalism is used to calculate the total differential cross-section at finite temperature. The contribution due to Lorentz violation is isolated from the total cross-section. It is found to be small in magnitude.

Hard collinear photons, high-energy radiative corrections to Bhabha scattering

1985 ◽  
Vol 252 ◽  
pp. 378-388 ◽  
Author(s):  
M. Caffo ◽  
R. Gatto ◽  
E. Remiddi
Keyword(s):  
High Energy ◽  
Radiative Corrections ◽  
Bhabha Scattering

Polarization of recoil-electron beam in high-energy Møller and Bhabha scattering

1984 ◽  
Vol 29 (9) ◽  
pp. 1909-1917 ◽  
Author(s):  
Soo Kyung Choi ◽  
Jihn E. Kim ◽  
Taeyeon Lee ◽  
H. S. Song
Keyword(s):  
Electron Beam ◽  
High Energy ◽  
Recoil Electron ◽  
Bhabha Scattering

Unitary approximation for radiative high energy scattering processes: Application to Bhabha scattering

1991 ◽  
Vol 50 (1) ◽  
pp. 75-84 ◽  
Author(s):  
◽  
H. D. Dahmen ◽  
P. Manakos ◽  
T. Mannel ◽  
T. Ohl
Keyword(s):  
High Energy ◽  
Energy Scattering ◽  
Bhabha Scattering ◽  
High Energy Scattering

FIRST RESULTS FROM THE AMY DETECTOR AT TRISTAN

1987 ◽  
Vol 02 (04) ◽  
pp. 943-954
Author(s):  
R. Imlay
Keyword(s):  
Storage Ring ◽  
Preliminary Analysis ◽  
Gamma Ray ◽  
High Energy ◽  
Fiducial Volume ◽  
Bhabha Scattering ◽  
Missing Momentum ◽  
First Results

Bhabha scattering and multi-hadronic e+e− annihilation events have been observed in the AMY detector at √s=500 GeV at the TRISTAN e+e− storage ring. Here we report the results of a preliminary analysis of the properties of these events. Of particular note is one event that contains a high energy, isolated gamma ray together with a large amount of missing momentum that penetrates the fiducial volume of the detector.

Bhabha scattering at high energy

1988 ◽  
Vol 48 (3) ◽  
pp. 335-351 ◽  
Author(s):  
S. Kuroda ◽  
T. Kamitani ◽  
K. Tobimatsu ◽  
S. Kawabata ◽  
Y. Shimizu
Keyword(s):  
High Energy ◽  
Bhabha Scattering

Bhabha scattering at high energy

1992 ◽  
Vol 105 (2) ◽  
pp. 277-291 ◽  
Author(s):  
M. Caffo ◽  
H. Czyz ◽  
E. Remiddi
Keyword(s):  
High Energy ◽  
Bhabha Scattering

scholarly journals Status of the KLOE-2 Inner Tracker

2018 ◽  
Vol 166 ◽  
pp. 00003
Author(s):  
Erika De Lucia
Keyword(s):  
Cosmic Ray ◽  
Drift Chamber ◽  
High Energy ◽  
Interaction Point ◽  
Gigabit Ethernet ◽  
Bhabha Scattering ◽  
Gem Detector ◽  
And Performance ◽  
Construction Operation ◽  
Gem Detectors

KLOE-2 at the DAΦNE Φ-factory is the main experiment of the INFN Laboratori Nazionali di Frascati (LNF) and is the first high-energy experiment using the GEM technology with a cylindrical geometry, a novel idea developed at LNF. Four concentric cylindrical triple-GEM detectors compose the Inner Tracker, inserted around the interaction region and before the inner wall of the pre-existing KLOE Drift Chamber to improve the resolution on decay vertices close to the interaction point. State-of-the-art solutions have been expressly developed or tuned for this project: single-mask GEM etching, multi-layer XV patterned readout, PEEK spacer grid, GASTONE front-end board, a custom 64-channel ASIC with digital output, and the Global Interface Board for data collection, with a configurable FPGA architecture and Gigabit Ethernet. Alignment and calibration of a cylindrical GEM detector was never done before and represents one of the challenging activities of the experiment. The Inner Tracker detector construction, operation, calibration and performance obtained with cosmic-ray muons and Bhabha scattering events will be reported.

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