scholarly journals Study of QCD in gamma gamma to pseudoscalar meson pair processes

2013 ◽  
Author(s):  
Hideyuki Nakazawa
Keyword(s):  
Pseudoscalar Meson ◽  
Meson Pair

scholarly journals Two and three pseudoscalar production in e+e− annihilation and their contributions to (g − 2)μ

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Wen Qin ◽  
Ling-Yun Dai ◽  
Jorge Portolés
Keyword(s):  
Experimental Data ◽  
Theoretical Prediction ◽  
Pseudoscalar Meson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Vacuum Polarization ◽  
Meson Production ◽  
The Other ◽  
Joint Analysis ◽  
The Standard Model

Abstract A coherent study of e+e− annihilation into two (π+π−, K+K−) and three (π+π−π0, π+π−η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y. Dai, J. Portolés, and O. Shekhovtsova, Phys. Rev. D88 (2013) 056001] is revisited with the latest experimental data and a joint analysis of two pseudoscalar meson production. Hence, we evaluate the lowest order hadronic vacuum polarization contributions of those two and three pseudoscalar processes to the anomalous magnetic moment of the muon. We also estimate some higher-order additions led by the same hadronic vacuum polarization. Combined with the other contributions from the standard model, the theoretical prediction differs still by (21.6 ± 7.4) × 10−10 (2.9σ) from the experimental value.

scholarly journals Pseudoscalar quarkonium exclusive decays to vector meson pair

2011 ◽  
Vol 702 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Peng Sun ◽  
Gang Hao ◽  
Cong-Feng Qiao
Keyword(s):  
Vector Meson ◽  
Meson Pair

scholarly journals Diffractive Physics at the LHC

2019 ◽  
Vol 64 (8) ◽  
pp. 772
Author(s):  
M. Trzebiński
Keyword(s):  
Beyond Standard Model ◽  
Elastic Scattering ◽  
Standard Model ◽  
Pair Production ◽  
Magnetic Monopoles ◽  
Pomeron Exchange ◽  
Gauge Couplings ◽  
Meson Pair

Diffractive processes possible to be measured at the LHC are listed and briefly discussed. This includes soft (elastic scattering, exclusive meson pair production, diffractive bremsstrahlung) and hard (single and double Pomeron exchange jets, y +jet, W/Z, jet-gap-jet, exclusive jets) processes as well as Beyond Standard Model phenomena (anomalous gauge couplings, magnetic monopoles).

Pseudoscalar meson production and the quark model

1969 ◽  
Vol 13 (1) ◽  
pp. 53-56 ◽  
Author(s):  
T. Hofmokl ◽  
M. Szeptycka
Keyword(s):  
Quark Model ◽  
Pseudoscalar Meson ◽  
Meson Production
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