Recent results on hadronic cross sections measurements at BABAR for the g−2 calculation

<i>B<span class="sc">a</span>B<span class="sc">ar</span></i> Collaboration

Research output: Contribution to journalConference articlepeer-review

Abstract

A program of measuring the light hadrons production in exclusive e+e → hadrons processes is in place at BABAR with the aim to improve the calculation of the hadronic contribution to the muon g−2. We present the most recent results obtained by using the full data set of about 470 fb1 collected by the BABAR experiment at the PEP-II e+e collider at a center-of-mass energy of about 10.6 GeV. In particular, we report the results on the channels e+e → π+ππ0π0, e+e → π+ππ0π0π0, e+e → π+ππ0η, and e+e → π+πη. The first reaction, in particular, presently gives the main uncertainty on the total hadronic cross section in the energy region between 1 and 2 GeV.

Original languageEnglish
Article number535
JournalProceedings of Science
Volume364
Publication statusPublished - 2019
Event2019 European Physical Society Conference on High Energy Physics, EPS-HEP 2019 - Ghent, Belgium
Duration: 10 Jul 201917 Jul 2019

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