Liverpool τ→3μ analysis

Useful reading

ATLAS Run-1: https://arxiv.org/pdf/1601.03567.pdf

CMS Run-2: https://arxiv.org/pdf/2007.05658.pdf

ATLAS HL-LHC projection: http://cdsweb.cern.ch/record/2647956/files/ATL-PHYS-PUB-2018-032.pdf

Meetings:

Local meetings: Thursday@11am (MS teams)

Data & MC samples

The data and MC samples are stored on hepstore and EOS at the following locations:

EOS: /eos/user/m/msulliva/Tau3Mu/tuples

hepstore: /hepstore/msullivan/Tau3Mu/tuples/20190318/

MC samples

Dataset ID (DSID)	Sample information
hist-hf.root
300230-300231	bb→τν, 3μ filter
300560-300561	cc→Ds→τν, 3μ filter
300562-300563	bb→Ds→τν, 3μ filter
hist-Wincl-taunu.root
300558-300559	W→τν, 3μ filter
hist-hf-Ds-3muX.root
300564, 300571	HF→Ds→φμν, 3μ filter
300566, 300573	HF→Ds→ηpμν, 3μ filter
300567, 300574	HF→D→ρμν, 3μ filter
300568, 300575	HF→D→ημν, 3μ filter
300569, 300576	HF→D→ηpμν, 3μ filter
300570, 300577	HF→D→ωμν, 3μ filter

Reminder of relevant hadrons (I really needed it)

Hadron	Mass [MeV]	Content
φ	1020	ssbar
η	548	uubar+ddbar-2ssbar
η'	958	uubar+ddbar+ssbar
ρ	770	udbar, uubar, ddbar
ω	782	uubar, ddbar

Data

Data taken in 2017 & 2018 use the BLS stream in addition to the main stream, which writes out events at around 200Hz and reconstructs them on a delayed timeline.

Year	Period
hist-data.root
2015	D, E, F, G, H, J
2016	A, B, C, D, E, F, G, I, K, L
2017	B, C, D, E, F, H, I, K
2018	B, C, D, F, I, K, L, M, O, Q

Code

The Gitlab repository for the code I have so far is here: https://gitlab.cern.ch/msulliva/tau3mu/

There are instructions on how to use the cutflow and the plotting code in the respective readme.

-- MatthewSullivan - 16 Oct 2020