23-27 January 2017
Bormio, Italy
Europe/Berlin timezone

Baryon Form Factors at BESIII

25 Jan 2017, 17:40
Bormio, Italy

Bormio, Italy

Short Contribution Wednesday Afternoon


Dr Cristina Morales


The BESIII detector at the BEPCII $e^+e^-$ collider has been taken data since 2008. With a small amount of data, we have measured the cross section of $e^+e^-\to p\bar{p}$ at 12 center-of-mass energies from 2.2324 to 3.6710 GeV. Much larger data samples have been collected, for examples, energy scan in 2-3.1 GeV for 650/pb and in 3.85-4.6 GeV for 500/pb, in addition to other data samples. The prospect of baryon form factors measurements will be discussed, including $p\bar{p}$, $n\bar{n}$, $\Lambda\bar\Lambda$, etc. The preliminary but unexpected result of form factors of $\Lambda\bar\Lambda$ measurement is shown, as well as the expectation from the data collected at the threshold of $\Lambda_c\bar\Lambda_c$. Initial State Radiation (ISR) technique is also used, in both tagged and untagged methods, for $p\bar{p}$ study.

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