Trigger efficiency study

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Presentation transcript:

Trigger efficiency study

Trigger channel Channel condition NEClus.GE.1, NETOF.GE.1, STrk_BB 1 NEClus.GE.1, NETOF.GE.1, STrk_BB 1 NBClus.GE.1, NBTOF.GE.2, NLtrk.GE.2 3 BTOF_BB, LTrk_BB 4 Etot_L, NBTOF.GE.1, NLtrk.GE.1 5 NBClus.GE.1, NBTOF.GE.1, NLtrk.GE.2 8 NClus.GE.1, BEtot_H 11 NClus.GE.2, Etot_M

Trigger efficiency study Pure neutral trigger, depend on Channel [8]&[11]. Total deposition energy dependent trigger efficiency is needed. Control samples: 𝑝 𝑝 , Trigger channel 3 (BTOF_BB, LTrk_BB) is requested inclusive (Ngood>2prong), Trigger channel 5 (NBClus.GE.1, NBTOF.GE.1, NLtrk.GE.2) is requested Trigger efficiency： 𝜀 𝑡𝑟𝑖𝑔𝑔𝑒𝑟(8,11) = 𝑁 (𝑠𝑒𝑙,𝑛𝑐𝑙𝑢𝑠≥2, 𝑡𝑟𝑖𝑔𝑑𝑎𝑡𝑎[8]=1||𝑡𝑟𝑖𝑑𝑎𝑡𝑎 11 =1) 𝑁 (𝑠𝑒𝑙, 𝑛𝑐𝑙𝑢𝑠≥2) 𝜀 𝑡𝑟𝑖𝑔𝑔𝑒𝑟(11) = 𝑁 (𝑠𝑒𝑙,𝑛𝑐𝑙𝑢𝑠≥2, 𝑡𝑟𝑖𝑑𝑎𝑡𝑎 11 =1) 𝑁 (𝑠𝑒𝑙, 𝑛𝑐𝑙𝑢𝑠≥2) 𝜀 𝑡𝑟𝑖𝑔𝑔𝑒𝑟(8) = 𝑁 (𝑠𝑒𝑙,𝑛𝑐𝑙𝑢𝑠𝑏≥1, 𝑡𝑟𝑖𝑔𝑑𝑎𝑡𝑎[8]=1) 𝑁 (𝑠𝑒𝑙, 𝑛𝑐𝑙𝑢𝑠𝑏≥1)

Trigger efficiency from 𝑝 𝑝 Selection of control sample two charged tracks, identified as proton |cos𝜃|<0.8 Momentum window applied Data samples: 2015 R-scan data 2012 Jpsi data

Trigger efficiency from 𝑝 𝑝 Jpsi data set [120410, 120526] Rscan + 2.125 GeV [141231, 150620] black dot: trigger efficiency of channel8 and channel11 (Nclust>=2) red dot: trigger efficiency of channel11 (Nclust>=2) blue dot: trigger efficiency of channel 8 (Nclust in barrel >=1)

Trigger efficiency from inclusive final states Selection of control sample more than 2 charged tracks, at least one proton, one kaon or one pion Data sets all the data set since 2009 to 2017

Trigger efficiency from inclusive final states 3.650 GeV [090526, 090603] 4.040 GeV [110504, 110603] Jpsi data set [090612, 090728] The knee point appears at 0.8 GeV since J/psi data taking in 090612.

Trigger efficiency from inclusive final states Jpsi data set [120410, 120526] rscan data set [120608, 120616] xyz data set [121215, 130512] Different energy points shows the same performance on trigger efficiency

Trigger efficiency from inclusive final states 3.65 GeV [130605, 130606] rscan data set [131210, 140131] 4.6 GeV [140205, 140311] There seems to be a change made since rscan data taking at [3.85, 4.6] GeV, otherwise it is hard to understand the different knee point which is above 1.0 GeV

Trigger efficiency from inclusive final states xyz data set [140312, 140529] 2.125 GeV [150501, 150620] rscan data set [141231, 150430]

Backup

Trigger efficiency from 𝑝 𝑝 Jpsi data set [120410, 120526] Rscan + 2.125 GeV [141231, 150620]