Status report of EWK Wy VBS analysis Zhen
Status report of EWK Wy VBS analysis --Zhen Wang , Xi Wang , Shu Li, Jun Guo Speaker: 王震
Physics goal 1/8/2022 ar. Xiv: 1612. 09256 v 2 [hep-ex] 23 Jun 2017 2
MC and data samples • Signal: • mc 16_13 Te. V. 361271. MGH 7 EG_NNPDF 30 LO_A 14 NNPDF 23 LO_Wmunu gamma 2 j. EWK. deriv. DAOD_EXOT 6. e 7391_a 875_r 9364_p 3931 • mc 16_13 Te. V. 361270. MGH 7 EG_NNPDF 30 LO_A 14 NNPDF 23 LO_Wenuga mma 2 j. EWK. deriv. DAOD_EXOT 6. e 7391_a 875_r 9364_p 3931 EWK Wy 2 j Events • Background: • mc 16_13 Te. V. 364525. Sherpa_222_NNPDF 30 NNLO_enugamma_pty_14 0_E_CMS. deriv. DAOD_EXOT 6. e 5928_s 3126_r 9364_p 3931 • mc 16_13 Te. V. 364530. Sherpa_222_NNPDF 30 NNLO_munugamma_pty_1 40_E_CMS. deriv. DAOD_EXOT 6. e 5928_s 3126_r 9364_p 3931 • mc 16_13 Te. V. 410644. Powheg. Pythia 8 Evt. Gen_A 14_singletop_schan_lep t_top. deriv. DAOD_EXOT 6. e 6527_s 3126_r 9364_p 3929 • mc 16_13 Te. V. 410645. Powheg. Pythia 8 Evt. Gen_A 14_singletop_schan_lep t_antitop. deriv. DAOD_EXOT 6. e 6527_s 3126_r 9364_p 3929 • DATA: RUN 2(15 -18) QCD Wy Events Single top event
ar. Xiv: 1612. 09256 v 2 [hep-ex] 23 Jun 2017 Published in the Journal of High Energy Physics as doi: 10. 1007/JHEP 06(2017)106. Selection criteria Z->e+e- background
Result histograms Weight from code is used, Didn’t do renormalization. Top quark: Only single top tty events are not included
Result histograms
Background normalization • It is estimated using simulation and is normalized to the number of events in data in the region 200 < mjj < 400 Ge. V (QCD). • Contribution of top quark represents only 3. 4% of the total event yield in the EW signal region
Which is weird Mjj distribution from data 15 And all the histograms from year 16 and 17 are the same Cut_flow_ev from data 18
CMS Detector • The tracking system consists of 1440 silicon pixel and 15148 silicon strip detector modules and covers the pseudorapidity range eta<2. 5 Currently didn’t find a way to do the normalization of signal events.
Next • Check with detector differences between ATLAS and CMS • Keep modifying code • Change MC datasets (deal with normalization …) • . .
That’s all
Backup •
- Slides: 13