Studying time-like baryonic transitions with HADES - INSPIRE

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Studying time-like baryonic transitions with HADES

HADES

Collaboration

•

B. Ramstein
(
- Orsay, IPN
)

for the collaboration.

May 25, 2016

6 pages

Part of Proceedings, 16th International Conference on Hadron Spectroscopy (Hadron 2015) : Newport News, Virginia, USA, September 13-18, 2015

Published in:

AIP Conf.Proc. 1735 (2016) 1, 080001

Contribution to:

- Hadron 2015

Published: May 25, 2016

DOI:

10.1063/1.4949454

Experiments:

GSI-HADES

View in:

HAL Science Ouverte

reference search3 citations

Citations per year

Abstract: (AIP)

Recent results of the HADES collaboration are presented with emphasis on the e+e− production in elementary reactions. Via the Dalitz decay of baryonic resonances (R →Ne+e−), access is given to the time-like electromagnetic structure of baryonic transitions. This process could be measured for the first time for Δ(1232) in pp reactions at 1.25 GeV. At higher energies, the sensitivity of e+e− emission to transition form factors of the Vector Dominance type has been demonstrated. Very recently, experiments with the GSI pion beam started, allowing for more direct studies of baryonic resonances Dalitz decays. In addition, the measurement of hadronic channels provides a new data base for baryon spectroscopy issues, in particular in the 2πN channel.

Baryon resonances
Electromagnetic decays
Form factors
Pion induced reactions
Pions
electron: pair production
baryon resonance: decay
form factor: transition
baryon: hadron spectroscopy
electromagnetic decay

References(24)

Figures(0)

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