scholarly journals J/{psi} Production via Initial State Radiation in e{sup +}e{sup -} {yields} {mu}{sup +}{mu}{sup -}{gamma} at an e{sup +}e{sup -} Center-of-Mass Energy Near 10.6 GeV

2003 ◽  
Author(s):  
V Druzhinin
Keyword(s):  
Center Of Mass ◽  
Initial State Radiation ◽  
Mass Energy ◽  
Initial State ◽  
Center Of Mass Energy ◽  
State Radiation ◽  
Psi Production

scholarly journals J/ψproduction via initial state radiation ine+e−→μ+μ−γat ane+e−center-of-mass energy near 10.6 GeV

2004 ◽  
Vol 69 (1) ◽  
Author(s):  
B. Aubert ◽  
R. Barate ◽  
D. Boutigny ◽  
J.-M. Gaillard ◽  
A. Hicheur ◽  
...  
Keyword(s):  
Center Of Mass ◽  
Initial State Radiation ◽  
Mass Energy ◽  
Initial State ◽  
Center Of Mass Energy ◽  
State Radiation

RECENT RESULTS FROM THE KLOE EXPERIMENT AT DAΦNE

2005 ◽  
Vol 20 (26) ◽  
pp. 1939-1952
Author(s):  
◽  
MATTEO PALUTAN
Keyword(s):  
Center Of Mass ◽  
Branching Ratio ◽  
Branching Ratios ◽  
Initial State Radiation ◽  
Mass Energy ◽  
Initial State ◽  
Center Of Mass Energy ◽  
Upper Limit ◽  
State Radiation ◽  
Selection Of

The KLOE experiment at DAΦNE has collected data for an integrated luminosity of ~ 1.3 fb-1 from e+e- collisions at center-of-mass energy around the ϕ-meson peak, W ~1.02 GeV . A selection of results obtained from a sample of 450 pb-1 of data acquired during year 2001 and 2002 is presented. Studying tagged KS and KL-mesons produced in the reaction e+e-→ϕ→KS KL we measured the branching ratio of the decay KS→πeν, the upper limit on the decay KS→π0π0π0, and the main KL decay branching ratios. Exploiting the initial state radiation in the reaction e+e-→π+π-γ, we extracted the hadronic cross-section as a function of the squared center-of-mass energy sπ of the π π system, in the range 0.35 < sπ < 0.95 GeV 2.

scholarly journals Angular analysis of the e+e- → D(*)D* process near the open-charm threshold using initial-state radiation

2019 ◽  
Vol 202 ◽  
pp. 06008
Author(s):  
Valentina Zhukova
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Center Of Mass ◽  
Initial State Radiation ◽  
Initial State ◽  
Center Of Mass Energy ◽  
Belle Detector ◽  
Section Measurement ◽  
Angular Analysis ◽  
State Radiation

We report new measurement of the exclusive e+e- → D(*)±D*∓ cross sections as a function of center-of-mass energy from the D(∗)±D∗∓ threshold up to $ \sqrt s $ = 6.0 GeV with initial state radiation. The analysis is based on a data sample collected by the Belle detector with an integrated luminosity of 951 fb−1. The accuracy of the cross section measurement is increased by a factor of 2 in comparison with the first Belle study. We have performed the first angular analysis of the e+e- → D∗±D∗∓ process and decomposed this exclusive cross section into three components corresponding to the different D∗ helicities.

scholarly journals MEASUREMENT OF THE PROTON ELECTROMAGNETIC FORM FACTORS AT BABAR

2014 ◽  
Vol 35 ◽  
pp. 1460425
Author(s):  
V. P. DRUZHININ ◽  
Keyword(s):  
Center Of Mass ◽  
Form Factors ◽  
Mass Range ◽  
Initial State Radiation ◽  
Electromagnetic Form Factors ◽  
Initial State ◽  
State Radiation ◽  
Radiation Technique ◽  
Babar Detector ◽  
Integrated Luminosity

The process [Formula: see text] has been studied in the [Formula: see text] mass range from threshold to 6.5 GeV/c2 using the initial-state-radiation technique with both detected and undetected photon. The analysis is based on 469 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II collider at e+e- center-of-mass energies near 10.6 GeV.

scholarly journals Anisotropic flow of identified particles in Pb–Pb collisions at √SNN = 5.02 TeV

2018 ◽  
Vol 171 ◽  
pp. 17002
Author(s):  
Redmer Alexander Bertens
Keyword(s):  
Initial Conditions ◽  
Center Of Mass ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Mass Energy ◽  
Initial State ◽  
Anisotropic Flow ◽  
Center Of Mass Energy ◽  
Ion Collisions ◽  
Hydrodynamic Calculations

Anisotropic flow is sensitive to the shear (η/s) and bulk (ζ/s) viscosity of the quark-gluon plasma created in heavy-ion collisions, as well as the initial state of such collisions and hadronization mechanisms. In these proceedings, elliptic (υ2) and higher harmonic (υ3, υ4) flow coefficients of π±, K±, p(p) and the ϕ-meson, are presented for Pb—Pb collisions at the highest-ever center-of-mass energy of [see formula in PDF] = 5.02 TeV. Comparisons to hydrodynamic calculations (IP-Glasma, MUSIC, UrQMD) are shown to constrain the initial conditions and viscosity of the medium.

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