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15–19 Nov 2021
Institute of High Energy Physics (IHEP), CAS
Asia/Shanghai timezone

Measurement of the neutral pion transition form factor at low Q2 at Jefferson Lab

Not scheduled
15m
Institute of High Energy Physics (IHEP), CAS

Institute of High Energy Physics (IHEP), CAS

19B Yuquan Road, Shijingshan District, Beijing, China
Parallel-Goldstone Boson

Speaker

Dr Ilya Larin (UMASS Amherst)

Description

The neutral pion transition form factor (TFF) plays an important role in tests of low energy QCD, and in the determination of the hadronic-light-by-light (HLbL) scattering contribution to the muon anomalous magnetic moment, (g-2). Several measurements of this form factor exist in the large space-like Q2region, but the low Q2space-like region remains largely unexplored. This talk will present the details and impact of the proposed precision measurement of the TFF to be carried out in Hall B of Jefferson Lab. This experiment will use a 10.5 GeV electron beam, silicon target, and a low background beamline in Hall B to measure the Primakoff cross-section for neutral pion electro-production. These data will be used to extract the pion TFF in the Q2range of 0.001-0.1 GeV2, and constrain calculations for the HLbL contribution to a muon (g-2) at low Q2. The author acknowledges support from D.O.E. grant DE-FG02-88ER40415

Primary author

Dr Ilya Larin (UMASS Amherst)

Presentation materials

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