Draft: Inclusive Xi/Omega and Lambda+track Lines

Marian Stahl requested to merge mstahl_hyperons into master

This MR adds two new HLT1 lines to select hyperons. One looks for inclusive \Xi\to\Lambda\pi^- and \Omega\to\Lambda K^-; the other for \Lambda\to p \pi^- that makes a good vertex with a track that has the same charge as the proton and is displaced from any PV. The intention is to make use of the characteristic hyperon decay topology to select soft charm baryon decays to hyperons that have a relatively low efficiency with the generic lines.

Rates from standalone Allen on BWDIV minbias sample to be evaluated.

Edited by Marian Stahl

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