Datasets-SU2020

Datasets for '2020 Mu2e sensitivity updates (in progress)

• SU2020 stands for "'2020 Mu2e sensitivity Updates"

• SU2020 dataset naming conventions
• Su2020 stopped particle (muon/pion/pbar) ntuples - input for physics simulations
• consider two channels - mu- --> e- and mu- --> e+
• signal windows are different, roughly speaking, [103.5-105] MeV/c and [90.5-92.5] MeV/c , so some background datasets could be the same, but some - unique for a given signal channel

mu- --> e- channel

Dataset	DsID	N(generated events)	STNTUPLE dataset	comments
CE (mu-Al --> e-Al) signal only	conv0s51b0	1,000,000	cele0s51b0
CE (mu-Al --> e-Al) mixed 1 batch	conv0s51b1	2,000,000
CE (mu-Al --> e-Al) mixed 2 batches	conv0s51b2	2,000,000
flat electrons one particle	fele0s51b0	1,000,000		85-105 MeV/c
DIO mixed 1 batch	mdio0s51b1	10,000,000
cosmics (no mixing)	cosm0s41b0	19950000000		strip of events with at least one reconstructed [downstream] helix from CRY3 dig.mu2e.CRY-cosmic-general.2025lo.art dataset
RPC external no mixing	rpce0s51b0	1,000,000,000		need for mixing under investigation
RPC external test v1		100,000,000	SU2020 stntuples	test dataset, generated by Leo Borrel
RPC internal	rpci0s51b0	1,000,000,000		pion decay disabled, weight depending on proper time, need for mixing under investigation
RMC external	rmce0s61b0	1,832,902,322	rmce0s61b0	non-flat energy and cos gamma in [85,93], conversions resampled, negligible but comes for free from mu- --> e+ background dataset
RMC external	rmce1s51b0	10,000,000	rmce1s51b0	flat gamma in [70,102]
RMC external	rmce2s51b0	30,000,000	rmce2s51b0	flat gamma in [70,102], with a filter requiring a daughter with E > 68 MeV
RMC external	rmce3s51b0	4,750,000	rmce3s51b0	flat gamma in [70,102] and 0.98 < cos(theta) < 1.00
RMC external	rmce4s51b0	9,600,000	rmce4s51b0	photons with E = 101.85 MeV, for studies at the kinematic end point
RMC external mixed 1 batch	rmce0s51b1	10,000,000
RMC internal	rmci0s51b0	5,000,000		flat gamma in [85,93], negligible but comes from free from mu- --> e+ background dataset
RMC internal mixed 1 batch	rmci0s51b1	10,000,000
antiprotons stage0	pbar0s00b0	100,000,000,000		number of generated POT, weight with cross section*sqrt(acceptance) to optimize satistical error, no need to do mixing
antiprotons stage1	pbar0s10b0	100,000,000,000		number of generated POT, weight with cross section*sqrt(acceptance) to optimize satistical error, no need to do mixing
decays in flight and gamma conversions	beam0s00b0		?	assumed negligible for CD3

mu- --> e+ channel

Dataset	DsID	N(generated events)	STNTUPLE dataset	comments
CE (mu-Al --> e+Al)	cpos0s51b0	1,000,000	cpos0s51b0
DIO -> brem --> e+		1,000,000
cosmics		?	-	~40 Mu2e livetimes generated with CRY, rescale flux with Corsika, no need to do mixing
RPC external		1,000,000,000	?	number of generated POT, pion decay disabled, weight depending on proper time, need for mixing under investigation
RPC internal		1,000,000,000	?	number of generated POT, pion decay disabled, weight depending on proper time, need for mixing under investigation
RMC external		5,000,000	10,000,000	flat gamma in [85,93], number of generated POT , most important after cosmics
RMC internal		5,000,000	10,000,000	flat gamma in [85,93], number of generated POT , most important after cosmics
antiprotons		10,000,000,000	-	number of generated POT, weight with cross section*sqrt(acceptance) to optimize satistical error, no need to do mixing
decays in flight / gamma conversions		?	-	expected to be very small

beam datasets

DsID	N(POT)	FCL	Dataset description
bmum0s21b0	100,000,000	su2020/bmum0/bmum_s2.fcl	muon beam, s2, all particles stopped in front of TS5
bmum0s31b0	100,000,000	su2020/bmum0/bmum_s3.fcl	muon beam, s3, 105.6 um thick foils, all particles stopped in the stopping target, 99.5%+ mu-. need to clean up
bmum0s32b0	100,000,000	su2020/bmum0/bmum_s3.fcl	muon beam, s3, 105.6 um thick foils, particles stopped out-of-target, 99.5%+ mu-. need to clean up

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