Status of PHOKHARA

Grzelińska, Agnieszka; Czyż, Henryk; Wapienik, Agnieszka

doi:10.1016/j.nuclphysbps.2009.03.037

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…ISR became a powerful tool for the analysis of experiments at low and intermediate energies with the development of EVA-PHOKHARA, a Monte Carlo generator which is user friendly, flexible and easy to implement into the software of the existing detectors [329][330][331][332][333][334][335][336][337][338][339][340][341][342][343][344][345].…”

Section: Estimate Of the Theoretical Accuracymentioning

confidence: 99%

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Actis

Arbuzov²,

Balossini³

et al. 2010

Eur. Phys. J. C

310

179

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We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low-energy e + e − colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on τ decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and τ decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed.

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Section: Estimate Of the Theoretical Accuracymentioning

confidence: 99%

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Actis

Arbuzov²,

Balossini³

et al. 2010

Eur. Phys. J. C

310

179

View full text Add to dashboard Cite

show abstract

“…It gives a convenient ground to implement the results in the Monte Carlo generators, e.g., in FASTERD [18] (based on the general structure given in Ref. [15]) or PHOKHARA [19].…”

Section: Introductionmentioning

confidence: 99%

e+e- annihilation to (pi0 pi0 gamma) and (pi0 eta gamma) as a source of information on scalar and vector mesons

Eidelman,

Ivashyn,

Korchin

et al. 2010

Preprint

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We present a general framework for the model-independent decomposition of the fully differential cross section of the reactions e + e − → γ * → π 0 π 0 γ and e + e − → γ * → π 0 ηγ, which can provide important information on the properties of scalar mesons: f0(600), f0(980) and a0(980). For the model-dependent ingredients in the differential cross section, an approach is developed, which relies on Resonance Chiral Theory with vector and scalar mesons. Numerical results are compared to data. The framework is convenient for development of a Monte Carlo generator and can also be applied to the reaction e + e − → γ * → π + π − γ.

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“…The Radiative Return Method [1,2,3] (RRM) allows an extraction of the hadronic cross section σ had (Q 2 ) for hadronic invariant mass squared Q 2 from the energy threshold up to the nominal energy of the experiment at the fixed beam energy e + e − colliders. High-luminosity meson factories are especially suited for this purpose [4]. Interest in precise measurement of σ had (Q 2 ) is motivated, in part, by its relevance to the hadronic contribution to the muon anomalous magnetic moment a had µ [5,6] structure constant [7].…”

Section: Introductionmentioning

confidence: 99%

Radiative Return: a progress on FSR tests

Ivashyn,

Czyz,

Korchin

2009

Preprint

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To improve the accuracy of the e + e − → π + π − γ Radiative Return method, one has to control the theoretical uncertainty of the final-state photon emission. It is of particular importance at DAPHNE for the analysis, where cuts are relaxed to cover the threshold region. By means of Monte Carlo generator PHOKHARA we compare several final-state radiation models and present results, relevant for a meson factory running at √ s = 1 GeV.

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Status of PHOKHARA

Cited by 4 publications

References 38 publications

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

e+e- annihilation to (pi0 pi0 gamma) and (pi0 eta gamma) as a source of information on scalar and vector mesons

Radiative Return: a progress on FSR tests

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