am_Xpbar_min=2000. * MeV only in some btoxll lines?

Just a reminder that there is something a bit funny in some lines of btoxll turbo: it seems that the requirement am_Xpbar_min=2000. * MeV is not applied everywhere. Maybe @jagoodin knows why @mtat.

added RD RDb_to_xll labels

mentioned in merge request !4297 (merged)

Hi @matzeni, what do you mean by "not applied everywhere"?

@jagoodin if you look here: https://gitlab.cern.ch/lhcb/Moore/-/blob/master/Hlt/Hlt2Conf/python/Hlt2Conf/lines/rd/b_to_xll_hlt2.py?ref_type=heads#L1714 This cut is only present in this particular line, but not in the SS line (or any of the DD lines)

Ahh right I see what you mean, I think the approach was meant to be (and I must've mis-implemented it):

• am_Xpbar_min=2000. * MeV for Lambda0pbar lines
• am_Xpbar_min=1800. * MeV for ppbar lines On the basis that this is the minimum invariant mass of the Xpbar system in each case. Does this sound reasonable and if so then should I go ahead and implement this in !4297 (merged) or in a fresh MR?

changed milestone to %RD developments towards 2025 data-taking