okazaki_ICEPP

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1 LHC-ATLASRun-3

3 ATLAS Work in progress L1_MU20 in Run1 rejected by the trigger introduced in Run2 expected distribution in Run3 Data 2012, s=8tev, 25ns bunch spacing -1 L dt = 14.0 pb rejected by the trigger introduced in Run3 offline reconstructed muons offline pt > 20GeV η L1_MU20

4 12 m y RPCs EMS BOS BMS EES BIS BEE 2 1 EIS CSC 1 2 End-cap magnet

5 dθ ( ηnsw, φnsw ) ( ηbw, φbw ) muon dr, dφ

16 p s = L = = ln tan 2

17 p p s = s = L = L =

19 Run 1 Run 2 Run 3 Offline p T Offline p T Offline p T Threshold [GeV] Rate [khz] Threshold [GeV] Rate [khz] Threshold [GeV] Rate [khz] EM18VH EM30VHI EM25VHR EM EM EM EM10 2x EM15VHI 2x EM12VHR 2x EM total MU MU MU MU10 2x MU11 2x MU11 2x Muon total EM10VH_MU6 17,6 22 EM15VH_MU10 22, EM10VHR_MU10 17, EM10H_2MU6 17,2x6 2.5 EM10HR_2MU6 17,2x6 1.0 TAU TAU80V TAU80VR TAU50V 2x TAU40VR 2x TAU11I_TAU15 30, TAU20VI_3J20 2x50, TAU15VR_3J15 2x40, TAU11I_EM14VH 30, TAU20VI_ 2TAU15VR_ EM18VHI_3J18 50,25, EM13HR_3J13 40,20, TAU15VI_MU15 40, TAU11VR_MU11 35, TAU15_XE35 40,80 63 TAU20VI_ TAU15VR_ XE40_3J20 50,90, XE40_3J15 40,90, Tau total J J J J15 4x J25 4x J25 4x J75_XE40 150, J75_XE40 150, XE XE XE Jet/E miss T total a Topological triggers Total

21 Run-3以降で導入される新検出器 RPC BIS 7/8(新検出器) バレル部分のミューオントリガー検出器位置分解能が良い EIと相補的なφ領域をカバー赤色の部分はEIのカバー領域白枠で囲われた部分が RPC BIS 7/8のカバー領域 (Small Sectors) η=1.0 η=1.3 TGC-BW エンドキャップ部の RPC BIS 7/8 ビーム軸(z軸)から見た配置図 Tile Calorimeter ミューオントリガー検出器 η=2.4 バレルトロイド New Small Wheel 21

23 demonstrated. The very fine segmentation of the MM read out strips, together with a reasonably resolution, can also be exploited to complement the trigger scheme based on stgc, ad robustness and redundancy of the system. A graphical representation of the NSW small sector components can be seen in Fig Two similar MM small wedges, made of SM1 and SM2 modules, are mounted on the two sides of an internal spacer frame that defines the MM lever-arm ( 40 mm). The two MM wedges are then framed by two stgc quadruplets to complete the NSW small sector. New Small Wheel 5.1 Detector technology and characteristics small-strip TGC (stgc) } } The micromegas (an abbreviation for micro mesh gaseous structure (MM)) tech MWPCでアノードワイヤー developed in the middle of the 1990 s [21]. It permits the construction of thin wirel particle detectors. MM detectors consist of a planar (drift) electrode, a gas gap of a few カソードストリップ thickness acting as conversion and drift region, and a thin metallic mesh at typically 1 distance from the readout electrode,パッドから読み出しを行う creating the amplification region. A sketch operating principle is shown in Fig In the original design the drift electrod amplification mesh were at negative high voltage (HV) potentials, the readout elec ground (the Figure 1.21: Graphical representation of the different stgc and MM potential detector modules com- HV scheme has been modified for the MM application in A posing a small sector of the NSW. A similar configuration is foreseen for the large sectors as following sections). The HV potentials are chosen such that the electric field in the drift well. few hundred V/cm, and kv/cm in the amplification region. Charged particles tra drift space ionize the gas; the electrons liberated by the ionization process drift toward Micromegas (MM) With an electric field in the amplification region times stronger than the dri mesh is transparent to more than 95% of the electrons. The electron avalanche takes p メッシュとstripの間で増幅を行う thin amplification region, immediately above the readout electrode. The drift of the e stgc MM 3/45+, "&+2)'% stgcとmmが8層ずつ 1%02!4--&/0 $%&'()*+, %-%.+/)'%0!"# -'%./)"0/,(1*!%220'+ $%&'()$*+,!"#!676)899: 3*014(5/)*2*&/'(1*+!676,899: Figure 5.1: Sketch of the layout and operating principle of a MM detector.23

24 RoI RoI

26 Version 0 (DRAFT) - 24 March 2017 Data format from RPC BIS7/8 PAD trigger logic board to Endcap Sector Logic Words (16 bit) Word-0 first byte comma second byte comma Word-1 candidate-0 Word-2 Word-3 Word-4 candidate-1 candidate-2 Word-5 Word-6 candidate-3 Word-7 BCID CRC 8b/10b encoding x 16 bytes = 6.4 Gbps Format of a candidate information in RPC BIS7/8 PAD trigger logic board (24 bit/candidate) Field eta index phi index deta dphi 2/3 flag reserved Num. of bits (BIS7 & BIS8) = 1 station = 1 PAD trigger logic 3-layers (eta) + 3-layers (phi) 2.5 cm/strip for eta, 3.5 cm/strip for phi Number of channels in BIS7/8 (not defined yet) eta layer phi layer BIS BIS /3 coincidence should be taken in PAD trigger logic board. Reason of bit assignment per candidate Bits from eta index 6 (48+16) = 64 channels phi index 6 64 channels deta 3 eta difference between two farest layers (-3 to 3) dphi 3 phi difference between two farest layers (-3 to 3) 2/3 flag 2 Layer 1&2=00, Layer1&3=01, Layer2&3=10, Layer1&2&3=11

27 New Small Wheel Big Wheel TGC (measured) nsec BCs Total nsec BCs Total New Sector Logic Receive signal from NSW 41.4 Receive signals from BW 37 Optical Rx + De-serializer Optical Rx + De-serializer 2 39 Variable Delay 1 45 TGC R-Phi coincidence (LUT) 2 41 Decoding/Alignment of NSW data (LUT) 2 47 Waiting for NSW signals 6 47 BW - NSW coincidence (LUT) 1 48 Track selection 1 49 p T encoding 1 50 Serializer (128 bit/clk., 6.4 Gb/s) + Optical Tx 2 52 Optical fibre to MUCTPI (10 m) 2 54

28 0GIEIGE5L7EDDD8IBI6IGGIG1=7GI4GB GI= GI= BI GEE G= GEE GI= IC GI= GI= GI=( IC IC GI=) GI= GI= 30(B IC./30B G=BN-(2

29 = 1.0 = 0.1 Large RoI Small Large Small 1m o 17 o 28 o 17 o 28 o

31 20GeV + 40GeV - η dη = η NSW BW Simulation #RoI = η η NSW BW Entries 111 Mean x Mean y RMS x RMS y Large dφ = φ BW - φ NSW [rad] φ - φ 0.08 BW NSW = 1.0 Small

京都 ATLAS meeting 田代 Thursday, July 11, 13 1

京都 ATLAS meeting 田代 Thursday, July 11, 13 1 京都 ATLAS meeting 3.7. 田代削減先週のスライドより EI/FI と NSW を用いたの削減について after EI/FI cut after NSW cut -3 - - 3 trigger 数 : 5664 EI/FI cut 38 % 349965 NSW cut 6 % 3398 4 8 6 (offline pt> GeV) after EI/FI cut after