LHCb highlights: 2 slides + 2 video Stafoverleg, 9 Mar 2020 - PowerPoint PPT Presentation

LHCb highlights: 2’ slides + 2’ video Stafoverleg, 9 Mar 2020 9 Mar 2020 - Stafoverleg - N. Tuning

VELO, SciFi, Trigger The module production team agrees that Stycast and catalyst 23LV is the best option. Module production is expected to restart in • VELO: • Machining finished on all foils the second half of March. • C2 & A2 etched to 150-200 micron. ü Glue decision made • C1, C2, A2 & A3 are Torlon coated and have pt100’s ü RF foil • A1, C1, C2 & A2 are NEG coated. presentation of today, see https://edms.cern.ch/docume • v Pollution of cooling plant "strongly advised not to circulate CO 2 in detectors” • • SciFi: ü 1 st C-frame commissioned v Beampipe installation foreseen in May v 6 C-frames on other side only ready July • Trigger: ü CPU version of HLT1 reaches 125 kHz on AMD server (thanks Tristan Suerink!) • per node, scaling to 128 threads, utilising all 64 physical cores • For HLT1+HLT2 we will have O(1000) nodes ¡ Decision to go for CPU or GPU soon

Flavour Physics in 2020: 1) New baryon states 2) Input for γ 3) Measurement of |V cb | 4) World-best limit for K S 0 � µ + µ - 5) Seach for CP, and observation of P violation in Λ b 0 decay 6) Test of lepton-universality in Λ b 0 � pKµ + µ - / Λ b 0 � pKe + e - https://arxiv.org/abs/1912.08139 2 c 45 Candidates per 50 MeV/ 0 − pK e + e − Λ → b R pK | 0 . 1 <q 2 < 6 GeV 2 /c 4 = 0 . 86 + 0 . 14 LHCb Combinatorial − 0 . 11 ± 0 . 05 , 40 0 − 0 + − Λ → pK π e e b 35 0 − pK J / Λ → ψ b 0 + − B → K K e + e − Agrees with SM and with measurements of R K , R K* s 30 0 *0 + − B → K e e 25 20 15 10 5 0 5 5.5 6 − ] m ( pK e + e − ) [GeV/ c 2 ]

In Pursuit of New Physics with B 0 s,d → ` + ` − NEWS R. Fleischer et al., arXiv:1703.10160 s are observed. Assuming no contrib Robert Fleischer a,b , Ruben Jaarsma a and Gilberto Tetlalmatzi-Xolocotzi a 7) Limit on BF( B s 0 � e + e - ) of B ( B 0 s ! e + e − ) < 9 . 4 (11 . 2) ⇥ 10 − 9 0 + − 8) New result on angular distributions in B 0 � K* 0 µ + µ -

In Pursuit of New Physics with B 0 s,d → ` + ` − NEWS R. Fleischer et al., arXiv:1703.10160 s are observed. Assuming no contrib Robert Fleischer a,b , Ruben Jaarsma a and Gilberto Tetlalmatzi-Xolocotzi a 7) Limit on BF( B s 0 � e + e - ) of B ( B 0 s ! e + e − ) < 9 . 4 (11 . 2) ⇥ 10 − 9 0 + − 8) New result on angular distributions in B 0 � K* 0 µ + µ - Remember run-1 result: Implications: 5 ' https://arxiv.org/abs/1512.04442 P https://arxiv.org/abs/1903.10434 https://arxiv.org/abs/1503.06199 Altmannshofer & Straub 2 LHCb SM from DHMV 1 3.4 σ 0 SM -1 -2 0 5 10 15 2 q 2 [GeV / c 4 ] 8 ' P C 9 NP : New effective vector coupling from eg. vector leptoquarks

https://youtu.be/7bX-GTjISDY 9 Mar 2020 - Stafoverleg - N. Tuning