scholarly journals Two Photon Exclusive Production of Charged Pion and Kaon Pairs

2004 ◽  
Author(s):  
G Greenbaum
Keyword(s):  
Charged Pion ◽  
Exclusive Production ◽  
Two Photon

EXCLUSIVE PRODUCTION AT THE TEVATRON AND THE LHC

2009 ◽  
Vol 24 (02n03) ◽  
pp. 351-359 ◽  
Author(s):  
JAMES L. PINFOLD
Keyword(s):  
Pomeron Exchange ◽  
Current Status ◽  
Exclusive Production ◽  
Two Photon ◽  
Exclusive Processes ◽  
Photon Interactions

We present the current status of the study at the Tevatron, of the exclusive processes: [Formula: see text] and [Formula: see text], produced via two photon interactions; [Formula: see text], [Formula: see text] and [Formula: see text] from Double Pomeron Exchange (DPE); and, [Formula: see text], [Formula: see text] and [Formula: see text]; from photon-pomeron fusion (photoproduction). In closing we briefly discuss the plans for, and benefits of, studying exclusive physics at the LHC.

Effect of two-photon exchange on the charged pion form factor

2010 ◽  
Vol 684 (2-3) ◽  
pp. 123-126 ◽  
Author(s):  
Yu Bing Dong ◽  
S.D. Wang
Keyword(s):  
Form Factor ◽  
Charged Pion ◽  
Pion Form Factor ◽  
Photon Exchange ◽  
Two Photon

scholarly journals Compton scattering off pions and electromagnetic polarizabilities

2019 ◽  
Vol 34 (16) ◽  
pp. 1930008 ◽  
Author(s):  
Murray Moinester ◽  
Stefan Scherer
Keyword(s):  
Compton Scattering ◽  
Cross Sections ◽  
Charged Pion ◽  
Chiral Symmetry Breaking ◽  
Goldstone Boson ◽  
Text Data ◽  
Two Photon ◽  
Pion Polarizability ◽  
Theoretical Predictions ◽  
Stringent Test

The electric [Formula: see text] and magnetic [Formula: see text] Compton polarizabilities of both the charged and the neutral pion are of fundamental interest in the low-energy sector of quantum chromodynamics (QCD). Pion polarizabilities affect the shape of the [Formula: see text] Compton scattering angular distribution at back scattering angles and [Formula: see text] absolute cross sections. Theory derivations are given for the [Formula: see text] Compton scattering differential cross section, dispersion relations, and sum rules in terms of the polarizabilities. We review experimental charged and neutral polarizability studies and theoretical predictions. The [Formula: see text] polarizabilities were deduced from DESY Crystal Ball [Formula: see text] data, but with large uncertainties. The charged pion polarizabilities were deduced most recently from (1) radiative pion Primakoff scattering [Formula: see text] at CERN COMPASS, (2) two-photon pion pair production [Formula: see text] at SLAC Mark II, and (3) radiative pion photoproduction [Formula: see text] from the proton at MAMI in Mainz. A stringent test of chiral perturbation theory (ChPT) is possible based on comparisons of precision experimental charged pion polarizabilities with ChPT predictions. Only the CERN COMPASS charged pion polarizability measurement has acceptably small uncertainties. Its value [Formula: see text] agrees well with the two-loop ChPT prediction [Formula: see text], strengthening the identification of the pion with the Goldstone boson of chiral symmetry breaking in QCD.

scholarly journals Two-photon production of charged pion and kaon pairs

1994 ◽  
Vol 50 (5) ◽  
pp. 3027-3037 ◽  
Author(s):  
J. Dominick ◽  
M. Lambrecht ◽  
S. Sanghera ◽  
V. Shelkov ◽  
T. Skwarnicki ◽  
...  
Keyword(s):  
Charged Pion ◽  
Photon Production ◽  
Two Photon

scholarly journals Geometry of ultraperipheral nuclear collisions

2019 ◽  
Vol 34 (12) ◽  
pp. 1950068 ◽  
Author(s):  
I. M. Dremin
Keyword(s):  
Cross Section ◽  
Relative Role ◽  
Heavy Nuclei ◽  
Interior Space ◽  
Strong Magnetic Fields ◽  
Exclusive Production ◽  
Nuclear Collisions ◽  
Two Photon ◽  
Role Of Light

It is advocated that geometry of the interaction region of two heavy nuclei colliding at large impact parameters is important for the relative role of light-by-light scattering and QCD-initiated processes. Exclusive production of resonances is possible by dense electromagnetic fields in the interior space between the nuclei. The cross-section of the two-photon processes is evaluated and some examples are considered. It is speculated that the exclusive production of [Formula: see text]-mesons by “two-photon” processes forbidden by the Landau–Yang rule may be allowed within strong magnetic fields due to odd number of photons becoming involved.

scholarly journals Two-photon exclusive production of supersymmetric pairs at the LHC

2010 ◽  
Author(s):  
K. Piotrzkowski ◽  
N. Schul ◽  
George Alverson ◽  
Pran Nath ◽  
Brent Nelson
Keyword(s):  
Exclusive Production ◽  
Two Photon

scholarly journals A study of the process e+ + e−→ e+ + e− + p + p̄ by the two-photon mechanism γγ → pp̄ at high energies

2017 ◽  
Vol 32 (18) ◽  
pp. 1750104 ◽  
Author(s):  
Azad I. Ahmadov
Keyword(s):  
Experimental Data ◽  
Total Cross Section ◽  
Cross Section ◽  
Beam Energy ◽  
Center Of Mass ◽  
Proton Antiproton ◽  
Exclusive Production ◽  
Two Photon ◽  
High Energies ◽  
Energy Formula

In this paper, we consider the exclusive production of proton–antiproton pairs in the interaction between two quasireal photons in [Formula: see text] collision. The differential and total cross-section of the process [Formula: see text] at a beam energy of photons from 2.1 GeV to 4.5 GeV in the center-of-mass and for different values of [Formula: see text] is calculated. At energy [Formula: see text] the total cross-section process of the [Formula: see text] is calculated by the two-photon mechanism. The results are in satisfactory agreement with the experimental data.

scholarly journals Exclusive production of pion and kaon meson pairs in two photon collisions at LEP

2003 ◽  
Vol 569 (3-4) ◽  
pp. 140-150 ◽  
Author(s):  
A. Heister ◽  
S. Schael ◽  
R. Barate ◽  
R. Brunelière ◽  
I. De Bonis ◽  
...  
Keyword(s):  
Exclusive Production ◽  
Two Photon ◽  
Kaon Meson
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