130

˙ ‫঺ڀݚ‬հ

LHC ATLAS ࣮‫ݧ‬ͷ࠷৽ঢ়‫گ‬
KEK ૉཻࢠ‫ॴڀݚ֩ࢠݪ‬੨໦ խਓmasato.aoki@kek.jp
2018 ೥ (ฏ੒ 30 ೥) 5 ݄ 7 ೔

͸͡Ίʹ

1

͖‫͢͜ى‬೤ෛՙͷ௿‫ݮ‬Λߦͳͬͨɻͦͯ͠ LHC Ճ଎‫ث‬Ͱ͸ɼηΫλʔ 12 ʹ͓͍ͯϚάωοτͷަ‫׵‬Λߦͳͬ

2012 ೥ͷώοάεཻࢠൃ‫ʹݟ‬ΑΓૉཻࢠ෺ཧʹେ͖ͳ

ͨɻLHC ͷӡసύϥϝʔλ΋มߋ͠ɼβ ∗ Λࡢ೥ͷ 40 cmߩ‫ݙ‬Λͨ͠ LHC ࣮‫ݧ‬͸ɼ͞ΒͳΔൃ‫ݧ࣮͚ͯ޲ʹݟ‬Λ͔Β 30 cm ͱখ͘͢͞Δ͜ͱʹΑΓɼߴ͍ॠؒϧϛϊ

ଓ͚͍ͯΔ [1]ɻ2015 ೥͔Β͸ཅࢠϏʔϜͷিಥΤωϧγςΟΛ࣮‫͢ݱ‬Δɻ·ͨɼATS (Achromatic TelescopicΪʔΛ 13 TeV ʹͨ͠ Run 2 ࣮‫͕ݧ‬ਐΊΒΕ͍ͯΔ [2]ɻSqueeze) optics ͱ Combined Ramp and Squeeze ʹΑRun 2 ࣮‫ݧ‬͸ 2018 ೥͍ͬͺ͍·Ͱߦͳ͍ɼཌ 2019 ೥ͱΓ Fill ͱ Fill ͷؒͷ࣌ؒΛ୹ॖ͠ɺ෺ཧϏʔϜͷ‫࣌څڙ‬2020 ೥͸Ճ଎‫ݕͱث‬ग़‫ث‬ͷΞοϓάϨʔυͷͨΊɼӡؒΛ௕͘औΕΔΑ͏ʹͨ͠ɻCrossing angle anti-levelingసΛҰ࣌தஅ͠ɼ2021 ೥͔Β࠶։͢Δ༧ఆͰ͋Δɻ

͸ Fill தʹϏʔϜͷަࠩ֯Λௐ੔͢Δ͜ͱʹΑͬͯॠؒຊߘͰ͸·ͣ 2 અͰ 2017 ೥ͷ LHC ͷӡసঢ়‫ͭʹگ‬͍ͯड़΂ɼ3 અͰ ATLAS ࣮‫ݧ‬ͷӡసঢ়‫͍ͯͭʹگ‬ड़΂Δɻ෺ཧղੳͷ࠷৽ঢ়‫͍ͯͭʹگ‬͸࣍ͷ‫঺Ͱࣄه‬հ͢ΔϧϛϊγςΟΛ 3 ∼ 4 ˋ্ঢͤ͞Δ͜ͱ͕Ͱ͖ΔɻRFʹରͯ͠͸ɼඞཁͳిྗΛ௿‫͢ݮ‬ΔΑ͏ͳվྑΛߦͳ͍ɼΑΓଟ͘ͷϏʔϜిྲྀΛྲྀ͢͜ͱ͕Ͱ͖ΔΑ͏ʹͨ͠ɻ͜ͱʹ͢Δɻ

2.2

LHC ͷӡసঢ়‫گ‬2

LHC (Large Hadron Collider) ͸εΠεɾδϡωʔϒ

2017 ೥ίϛογϣχϯά

LHC ͕ϑϧύϑΥʔϚϯεͰӡస͢Δ·Ͱʹ͸௨ৗ໿1ϲ݄ͷϥϯϓΞοϓ‫͕ؒظ‬ඞཁͰ͋Δɻ2017 ೥͸ 35 ೔߫֎ͷ CERN ʹઃஔ͞Εͨɼप௕ 27 km ͷ‫ڊ‬େՃ଎ؒΛ͜Εʹཁͨ͠ɻຖ೥߃ྫͷౙͷγϟοτμ΢ϯ‫ޙ‬ɼ4‫Ͱث‬ɼੈք࠷ߴΤωϧΪʔͷཅࢠϏʔϜΛਖ਼໘িಥ͞

݄ 29 ೔ʹ͸ LHC Ϧϯά಺ʹ 2017 ೥͸͡ΊͯͷϏʔϜ

ͤΔɻLHC ӡసॳ‫( ظ‬2010 ೥ʙ2011 ೥) ͸ 7 TeV ͷॏ͕पΓɼ5 ݄ 1 ೔ʹ͸ β ∗ Λࡢ೥ಉ༷ͷ 40 cm ͰӡసΛߦ৺‫ܥ‬ΤωϧΪʔͰӡస͍͕ͯͨ͠ɼ2012 ೥ʹ͸ 8 TeVɼ͏͜ͱ͕Ͱ͖ͨɻϏʔϜ͸ BCMS (Batch Compression,ͦͯ͠ 2015 ೥͔Βͷ Run 2 ࣮‫Ͱݧ‬͸ 13 TeV Ͱӡస

Merging and Splitting) εΩʔϜΛ࢖༻͠ɼ͜ΕʹΑΓΛߦ͓ͬͯΓɼ2021 ೥͔Βͷ Run 3 ࣮‫Ͱݧ‬͸͍Α͍ΑΤϛολϯεɼిࢠӢɼ೤ෛՙɼϏʔϜϩεɼύΠϧΞο

ઃ‫ܭ‬஋Ͱ͋Δ 14 TeV Ͱͷӡస͕༧ఆ͞Ε͍ͯΔɻॠ

ϓΛ཈͑Δ͜ͱ͕Ͱ͖ɼΑΓޮ཰Α͘ϧϛϊγςΟΛ্ؒϧϛϊγςΟʹ͍ͭͯ΋ঃʑʹϥϯϓΞοϓΛߦͳͬ

͛Δ͜ͱ͕Ͱ͖Δɻ෺ཧϥϯͱͯ͠ɼ͸͡Ίͯ҆ఆ͓ͨͯ͠Γɼ2017 ೥Ͱ‫ظ‬଴͞ΕΔ࠷ߴॠؒϧϛϊγςΟ͸

ϏʔϜఏ‫ڙ‬Λ։࢝ͨ͠ͷ͸ 5 ݄ 23 ೔Ͱ͋ͬͨɻLHC ʹ

1.4 ∼ 1.9 × 1034 cm−2 s−1 Ͱɼΰʔϧͱ͢Δੵ෼ϧϛϊ

ೖࣹ͢Δཅࢠόϯν਺Λঃʑʹ૿΍͍͖ͯ͠ɼ2 िؒ΄γςΟ͸ 45 fb−1 Ͱ͋ͬͨɻ

ͲͰ 600 όϯνʹ౸ୡͨ͠ɻౙʹަ‫ͨ͠׵‬Ϛάωοτ͕
͋Δ LHC ηΫλʔ 12 ͷిࢠӢΛ҆ఆͤ͞ΔͨΊɼͦͷ‫ޙ‬Ұिؒͷ scrubbing ΛߦͳͬͨɻScrubbing ͱ͸ɼ

2.1

2016 ೥͔Βͷվྑ఺

LHC ͸ΑΓଟ͘ͷੵ෼ϧϛϊγςΟΛ࣮‫͢ݱ‬ΔͨΊʹ༷ʑͳΞοϓσʔτΛߦͳͬͨɻϋʔυ΢ΣΞͷվળͱͯ͠ɼલஈՃ଎‫͋Ͱث‬Δ SPS (Super Proton Syncrotron)Λվྑ͠ɼΑΓ௕͍όϯντϨΠϯΛೖࣹͰ͖ΔΑ͏ʹͨ͠ɻ·ͨɼೖࣹΩοΧʔ΋৽͘͠͠ɼϏʔϜϩεΛҾhigh intensity ͷϏʔϜΛ short bunch spacing ͰՃ଎‫ʹث‬ճ͢͜ͱʹΑͬͯ1 ϏʔϜύΠϓ಺ද໘Λ៉ྷʹ͠ɼϏʔϜύΠϓ಺ද໘͔Β์ग़͞ΕΔ 2 ࣍ిࢠΛ௿‫͞ݮ‬ͤɼཅࢠϏʔϜ͕ిࢠӢ͔Βड͚ΔӨ‫ڹ‬Λ཈੍͢ΔͨΊ
1 ઃ‫ܭ‬஋࠷େͰ͋Δ 2820 ͷόϯνΛ LHC ʹೖࣹɻTotal intensity
͸ 3.4 × 1014 protons/beamɻ231ͷςΫχοΫͰ͋Δɻ͜ͷ scrubbing ʹΑͬͯɼLHCηΫλʔ 12 ͷϏʔϜύΠϓ಺ͷిࢠӢΛ‫ج‬४஋·Ͱʹ

2.48b4e εΩʔϜͰͷӡస཈͑ɼͦͷ‫͞ޙ‬Βʹόϯν਺Λ૿΍ͯ͠ΑΓߴ͍ॠؒϧిࢠӢͷӨ‫ڹ‬Λ‫ݮྗۃ‬Β͠ͳ͕ΒϧϛϊγςΟΛಘΔ

ϛϊγςΟΛ໨ࢦͨ͠ɻ6 ݄຤·Ͱʹ͸໨ඪͷ 2556 όํ๏ͱͯ͠ɼLHC ͸ 8b4e ͷεΩʔϜΛબ୒ͨ͠ɻ8b4eϯνʹୡ͠ɼ8 ݄ 9 ೔ʹ͸͜Ε·Ͱ࠷ߴͷॠؒϧϛϊγͱ͸ʠ 8 bunches and 4 empty buckets ʡͷ͜ͱͰɼͭςΟͰ͋Δ 1.7 × 1034 cm−2 s−1 Λ‫ه‬࿥ͨ͠ɻ·ΓɼཅࢠόϯνΛ 8 ‫ݸ‬࿈ଓͨ͠‫ޙ‬ɼ4 ͭ͸ۭͷ··ʹॠؒϧϛϊγςΟͷ‫ه‬࿥ߋ৽ͱɼඇৗʹॱௐʹ‫ͨ͑ݟ‬

͢Δ͜ͱͰɼ೤ෛՙΛ‫ݮ‬Β͠ϏʔϜϩε΋཈͑Δ͜ͱ͕

LHC ͷӡసͰ͕͋ͬͨɼ్த͔ΒϏʔϜϩεʹΑΓ FillͰ͖Δɻ͜ͷεΩʔϜͰͷӡస͸ 9 ݄ 4 ೔͔ΒߦͳΘ్͕தͰμϯϓͯ͠͠·͏ͱ͍͏໰୊ʹ಄Λ೰·͞ΕͯΕɼ࣮ࡍʹ೤ෛՙͱϏʔϜϩε͕཈͑ΒΕΔ͜ͱ͕֬ೝ

͍ͨɻͲΜͳʹॠؒϧϛϊγςΟ͕ߴͯ͘΋ɼ҆ఆͯ͠͞Εͨɻ9 ݄ 22 ೔͔Β͸ β ∗ Λ 40 cm ͔Β 30 cm ʹมߋϏʔϜ‫͕څڙ‬ग़དྷͳͯ͘͸ҙຯ͕ͳ͍ɻҎԼʹɼ͜ͷ໰͠ɼ·ͨϏʔϜμϯϓ͕‫͍ͳ͖ى‬Α͏ʹόϯν਺ͷௐ੔୊ɼʠ 16L2 ʡ ໰୊ʹ͍ͭͯड़΂͍ͯ͘ɻΛߦͳ͍ɼ࠷ऴతʹ͸ 1868 όϯνͷཅࢠϏʔϜΛ LHCʹೖΕͯিಥΛߦͳ͍ɼ݁ՌɼΑ͏΍͘ 8 ݄౰ॳͱಉ౳
ͷϧϛϊγςΟΛग़͢͜ͱ͕Ͱ͖ͨɻ͔͠͠ɼόϯνͷ2017 ೥ͷ LHC ͷӡసʹ͓͍ͯɼԿ౓͔ܾ·ͬͨύλʔϯͰϏʔϜ͕μϯϓͯ͠͠·͏‫ݱ‬৅͕͓͖ͨɻLHCϦϯάͷ Point–7 ͱ͍͏৔ॴͷ primary collimator ͰϏʔϜϩε͕‫ʹܹٸ‬େ͖͘ͳΓɼϏʔϜ͕μϯϓͯ͠͠·͍ͬͯͨɻ͜ͷϏʔϜϩε͸ԕ͘཭Εͨ Point–2 ͷηϧ 16L2 ͰͷϏʔϜϩεΛ‫͍ͯ͠ͱ఺ى‬Δ͜ͱ͕෼͔ͬ
ͨɻ͔͠͠ɼ͜ͷ 16L2 ͰͷϏʔϜϩεͷৼΔ෣͍͕ɼա‫ڈ‬ͷͲͷྫͱ΋߹கͤͣɼͲ͏ରॲͯ͠Α͍͔෼͔Βͳ͔ͬͨɻ͜ͷ໰୊ΛΑΓཧղ͢ΔͨΊʹɼҰ౓ͦͷ৔ॴͷԹ౓Λ 80 K ʹ্͛Δ͜ͱΛࢼͨ͠ɻ͜ͷख๏͸ա‫ڈ‬Α͘ߦͳΘΕ͖ͯͨ΋ͷͰɼԹ౓Λ্͛Δ͜ͱʹ਺͕ 2556 ͔Β 1868 ͱগͳ͍ͳ͕Β΋ಉ౳ͷϧϛϊγ
ςΟΛ࣮‫͢ݱ‬ΔͨΊɼύΠϧΞοϓ ʢཅࢠϏʔϜ͕Ұ౓ʹަࠩ͢Δͱ͖ʹিಥ͢Δࣄ৅਺ʣ͕ΑΓଟ͍ঢ়ଶͰ
ͷӡసʹͳΔɻਤ 1 ʹ͸ 2017 ೥ʹ LHC ͷӡస࣌ʹՃ଎‫ʹث‬ೖࣹ͞Εͨཅࢠόϯν਺ͷਪҠΛ͍ࣔͯ͠Δɻ
Bunches Colliding

2.3 ʠ 16L2 ʡͰͷϏʔϜϩε

3500
3000

2000
1500
1000

͔͠ɼϙϯϓʹΑͬͯ‫͍ٵ‬ग़͢ࣄʹΑͬͯΨεΛऔΓআ500͍ͯͨ͠ѹྗ্ঢ (∼ 10−7 mbar) Λང͔ʹ௒͑ͨେ͖
ͳ্ঢ (∼ 10−3 mbar) ͕‫؍‬ଌ͞Εͨɻ͜ͷ warm-up

s = 13 TeV

LHC Stable Beams

2500ΑͬͯϏʔϜύΠϓ಺ද໘ʹౚ݁͠෇ணͨ͠ΨεΛղ͘ɻ8 ݄ 10 ೔ʹ͜ͷ warm-up Λ͓͜ͳͬͨ݁Ռɼ༧૝ATLAS Online Luminosity

0
25/04 24/05 23/06 22/07 20/08 18/09 18/10 16/11 15/12
Day in 2017ͷ‫ޙ‬ɼ։์͞ΕͨΨε͕͞Βʹ༧‫͍ͳ͠ظ‬৔ॴ΁Ҡಈਤ 1: LHC ʹೖࣹ͞Εͨόϯν਺ͱ࣌ؒΛࣔͨ͠ਤ [4]ɻ͠‫ݻ‬ணͯ͠͠·ͬͨͨΊɼϏʔϜϩεͷ໰୊͸͞Βʹ

8 ݄·ͰॱௐʹϥϯϓΞοϓ͕ߦͳΘΕɼ࠷ऴతʹόϯѱ͍ࣄଶʹͳͬͯ͠·ͬͨɻೖࣹͰ͖Δཅࢠόϯν਺΋ν਺͸ 2556 ʹୡ͍ͯ͠Δ͕ɼͦΕҎ߱͸ 16L2 ͰͷϏʔ࠷ߴͰ΋ 1700 όϯνఔ౓ͱͳΓɼॠؒϧϛϊγςΟ΋

Ϝϩεͷ໰୊ʹΑΓɼόϯν਺ 1868 Ͱͷӡసͱͳͬͨɻ

∼ 1 × 1034 cm−2 s−1 ఔ౓ͱɼઌड़ͷϐʔΫύϑΥʔϚϯεͷ 60 ˋఔ౓ʹͱͲ·ͬͯ͠·ͬͨɻ͔͠͠ɼ͜ΕҎ

2556 όϯνͰӡస͍ͯͨ͠౰ॳ͸ύΠϧΞοϓͷϐʔ্ͷௐࠪʹ͸ɼ࠶ͼ warm-up ͕ඞཁͱͳΓɼ͞Βʹ໰Ϋ͕ 40 ఔ౓Ͱ͋ͬͨͷʹରͯ͠ɼ1868 όϯνͷ 8b4e୊͕ѱԽ͢ΔϦεΫ͕͋ΔͨΊɼ2017 ೥ϥϯχϯάதεΩʔϜͰ͸ϐʔΫ࣌ʹ໿ 80 ͷύΠϧΞοϓ͕‫͖ى‬Δɻ

ͷ warm-up ͸͜ΕҎ্ߦͳΘͣɼౙͷγϟοτμ΢ϯ

͜ͷϨϕϧͷύΠϧΞοϓͰ͸‫ݕ‬ग़‫ث‬ଆͰσʔλऔಘγ࣌ʹ࠶ௐࠪΛߦ͏͜ͱʹܾΊͨɻͨͩ͠ɼ͜ͷঢ়‫گ‬ԼͰεςϜʹଟେͳෛ୲͕͔͔ͬͯ͠·͍ɼಛʹιϑτ΢Σ

ߴ͍ϧϛϊγςΟΛ҆ఆʹ‫͢څڙ‬ΔͨΊʹ͸ϏʔϜύΠΞɾϕʔεͷτϦΨʔͰ͋Δ HLT (High Level Trigger)ϓ಺ͷిࢠӢͷӨ‫ڹ‬Λड͚ͮΒ͍ಛघͳίϯϑΟάϨʔͰ࢖༻͍ͯ͠ΔίϯϐϡʔςΟϯάϦιʔε͕‫ݶ‬քʹୡγϣϯͰͷӡసΛ͢Δඞཁ͕͋ͬͨɻ

ͯ͠͠·͍ɼσʔλΛޮ཰Α͘औಘ͢Δ͜ͱ͕Ͱ͖ͳ͘
ͳΔɻͦͷͨΊɼLHC Ͱ͸ϧϛϊγςΟΛϨϕϦϯά
͢Δख๏ʹΑΓύΠϧΞοϓ਺ (ॠؒϧϛϊγςΟ) Λίϯτϩʔϧͯ͠ɼ͋ΔҰఆͷ஋Ҏ্ʹͳΒͳ͍Α͏ʹ͢Δɻ͜͜Ͱ͸ɼSeparation Leveling ͱ͍͏ख๏Λಋೖ

3ςΟΛίϯτϩʔϧ͢Δɻਤ 2 Ͱ͸ LHC ʹ͓͚Δయ‫ܕ‬తͳ Fill ͷॠؒϧϛϊγςΟͷ࣌ؒൃలΛ͍ࣔͯ͠Δɻ

ATLAS Online Luminosity

25

Separation Leveling ʹΑͬͯɼFill ։࢝௚‫ޙ‬͸͠͹Β͘ҰఆͷॠؒϧϛϊγςΟΛอ͍ͬͯΔ͜ͱ͕෼͔Δɻ‫ݕ‬ग़‫ث‬ଆ͔Βͷཁ੥ʹΑΓύΠϧΞοϓ͸ 60 ҎԼʹ཈͑ॠؒϧϛϊγςΟͷ্‫ݶ‬Λ 1.5 × 1034 cm−2 s−1 ͰӡసΛߦͳͬͨɻ͜ͷεΩʔϜʹΑͬͯɼLHC ͸Α͏΍҆͘ఆͨ͠ӡసΛߦ͏͜ͱ͕ग़དྷͨɻਤ 3 ʹ͸ LHC ʹ 4

33cm-2 s-1

20
15
10
2/18 calibrationΔඞཁ͕͋ΔͨΊɼ͜ͷ Separation Leveling ʹΑͬͯs = 13 TeV

LHC Stable Beams
Peak Lumi: 20.9 ×1033ͣΒ͢͜ͱʹΑͬͯিಥͷ༗ޮ໘ੵΛ‫ݮ‬Β͠ɼϧϛϊγ

Peak Luminosity per Fill [10ͨ͠ɻ2 ͭͷཅࢠϏʔϜʹର͠ɼিಥ࣌ʹͦΕΒͷ࣠Λ

cm-2 s-1]

32

5

0
25/04 24/05 23/06 22/07 20/08 18/09 18/10 16/11 15/12
Day in 2017

ͭ͋Δিಥ఺ͷͻͱͭͰ͋Δ ATLAS ʹ͓͚ΔɼύΠϧΞοϓͷϐʔΫ஋Λࣔ͠ɼਤ 4 ʹ͸ Fill ։࢝࣌ͷॠؒਤ 4: ATLAS ʹ͓͚Δ Fill ։࢝࣌ͷॠؒϧϛϊγςΟ

ϧϛϊγςΟΛ͍ࣔͯ͠Δɻͱ࣌ؒ [4]ɻ16L2 ͰͷϏʔϜϩεͷ໰୊ʹΑΓɼϏʔϜઃఆΛௐ੔͍ͯ͠Δ 8 ݄ ∼9 ݄Ͱ͸ 1.0 × 1034 cm−2 s−1ҎԼͰͷӡసΛ༨ّͳ͘͞Ε͍͕ͯͨɼͦͷଞͷ‫Ͱؒظ‬͸΄΅Ұఆͯ͠ 1.5 × 1034 cm−2 s−1 Ͱӡసͨ͠ɻͱͳΓɼ౰ॳ໨ඪͱ͍ͯͨ͠ 45 fb−1 Λ௒͑Δ͜ͱ͕Ͱ͖ͨɻਤ 5 ͸ ATLAS ʹ͓͚Δੵ෼ॠؒϧϛϊγςΟͱ

Delivered Luminosity [fb -1]

࣌ؒΛ೥ผͰදࣔͨ͠ਤͰ͋Δɻਤ 2: LHC ʹ͓͚Δయ‫ܕ‬తͳ Fill ͷॠؒϧϛϊγςΟͷ
࣌ؒൃలΛࣔͨ͠ਤ [3]ɻ10 ݄Ҏ߱ɼSeparation LevelingʹΑͬͯॠؒϧϛϊγςΟͷ্‫ݶ‬Λ 1.5 × 10

34

cm

−2 −1

s

100

ATLAS Online Luminositys = 13 TeV

ATLAS Online Luminosity

50
40

2011 pp2012 pp2015 pp2016 pp2017 pp

s = 7 TeV
s = 8 TeV
s = 13 TeV
s = 13 TeV
s = 13 TeV

30
20

LHC Stable Beams

2/18 calibration

Peak Interactions/BXʹ੍‫ͯ͠ݶ‬ӡసͨ͠ɻ

60

10

80

0
Jan

60

Apr

Jul

40
2/18 calibration

20

0
25/04 24/05 23/06 22/07 20/08 18/09 18/10 16/11 15/12
Day in 2017

Oct
Month in Year

ਤ 5: ATLAS ʹ͓͚Δੵ෼ϧϛϊγςΟͱ࣌ؒΛ೥ผͰදࣔͨ͠ਤ [4]ɻ16L2 ͰͷϏʔϜϩεͷ໰୊͕͋ͬͨ
ʹ΋͔͔ΘΒͣɼ2017 ೥ͷੵ෼ϧϛϊγςΟ͸ 2016 ೥ͷͦΕΛ্ճΔ͜ͱ͕Ͱ͖ͨɻ

ਤ 3: ATLAS ʹ͓͚ΔύΠϧΞοϓͷϐʔΫ஋ͱ࣌ؒΛࣔͨ͠ਤ [4]ɻ8b4e εΩʔϜ͕ద༻͞ΕΔ 9 ݄·Ͱ͸ɼύΠϧΞοϓ਺ 40 ఔ౓Ͱӡస͍͕ͯͨ͠ɼͦΕҎ߱͸

Separation Leveling ʹΑΓϧϛϊγςΟ͕཈੍͞Εɼ60ఔ౓ͷύΠϧΞοϓͰӡసΛͨ͠ɻ

Separation Leveling ͕࢝·Δ௚લͷॠؒϧϛϊγςΟ
͸ɼ11 ݄ 2 ೔ʹϨίʔυͱͳΔ 2.09 × 1034 cm−2 s−1Λ‫ه‬࿥͠ɼ·ͨ 2017 ೥ͷੵ෼ϧϛϊγςΟ͸ 50.2 fb−1

3

ATLAS ‫ݕ‬ग़‫ث‬ͷӡసঢ়‫گ‬ATLAS ͸ LHC ͷ 4 ͭ͋Δিಥ఺ͷͻͱͭʹઃஔ͞Εͨ൚༻‫ݕࢠཻܕ‬ग़‫͋Ͱث‬ΔɻATLAS ΁ࢀՃ͍ͯ͠Δ‫ऀڀݚ‬͸͓Αͦ 3 ઍਓͰɼ೔ຊ͔Β͸໿ඦਓͷ‫͕ऀڀݚ‬ࢀՃ͍ͯ͠Δɻ

2017 ೥ͷӡసঢ়‫گ‬͸ඇৗʹ҆ఆ͓ͯ͠Γɼಛʹେ͖ͳ໰୊΋ͳ͘ LHC ͷσʔλΛॱௐʹ‫ه‬࿥͖ͯͨ͠ɻ2017433೥Λ௨ͨ͠σʔλऔಘޮ཰͸ 93%Ͱɼ͔ͦ͜Β෺ཧղੳʹ࢖༻Ͱ͖Δׂ߹͸໿ 93%ͷ 43.8 fb

−1

Ͱ͋ͬͨɻ

ҎԼͰ͸ɼओʹ೔ຊάϧʔϓ͕ਂؔ͘༩͍ͯ͠ΔγεςϜʹ͍ͭͯͷӡసঢ়‫گ‬Λड़΂͍ͯ͘ɻͨɻಛʹ࠷಺૚ͷ IBL ʹ͍ͭͯ͸ɼ์ࣹઢʹΑͬͯϑϩϯτΤϯυνοϓͷϨδελ৘ใ͕ॻ͖‫׵‬Θͬͯ͠·͏Single Event Upset ͕‫؍‬ଌ͞Ε࢝ΊɼͦͷӨ‫Ͱڹ‬ᮢ஋ઃఆ͕ॻ͖‫׵‬ΘΓɼIBL ʹ͓͚Δώοτͷ઎༗཰্͕ঢ͠
ͨɻͨͩ͠ɼ͜ͷϨϕϧͷϊΠζ͸෺ཧղੳʹରͯ͠ແ

Pixel ‫ݕ‬ग़‫ث‬

3.1

ࢹͰ͖ΔϨϕϧͷӨ‫͋Ͱڹ‬Δͱ෼͔͍ͬͯΔɻ·ͨɼηϯαʔͷ์ࣹઢଛইʹΑΓऩूిՙྔͷ‫ݮ‬গ΋‫؍‬ଌ͞ΕATLAS ʹઃஔ͞Ε͍ͯΔ Pixel ‫ݕ‬ग़‫ث‬͸‫ ܭ‬4 ૚͋Γɼ࢝Ί͍ͯΔɻ͜Ε΋·ͨ‫Ͱ఺࣌ݱ‬͸෺ཧղੳʹӨ‫ڹ‬͸ͳϏʔϜিಥ఺ʹҰ൪͍ۙ৔ॴʹ͸ 2014 ೥ʹΠϯετʔϧ

͍ɻਤ 7 ͸ IBL ʹ͓͚Δిՙऩूޮ཰Λੵ෼ϧϛϊγ͞Εͨ IBL ͕ઃஔ͞Ε͓ͯΓɼͦͷ֎ଆʹ͸ B–LayerɼςΟͷؔ਺Ͱࣔͨ͠΋ͷͰ͋Δɻ

ΤϯυΩϟοϓ෦ʹ͸ disc ͷ Pixel ‫ݕ‬ग़‫͕ث‬ઃஔ͞Εͯ
͍ΔɻLHC ͕‫͢څڙ‬Δઃ‫ܭ‬஋Ҏ্ͷϧϛϊγςΟͱύΠϧΞοϓʹରԠ͢ΔͨΊʹɼ͜ΕΒ Pixel ‫ݕ‬ग़‫ʹث‬ରͯ͠ॱ࣍ಡΈग़͠γεςϜͷΞοϓάϨʔυΛߦͳ͍ͬͯ
Δɻ2015 ೥ 12 ݄ʹ͸ Layer–2 ʹରͯ͠ɼ2016 ೥ 12 ݄ʹ͸ Layer–1 ʹରͯ͜͠ͷΞοϓάϨʔυΛߦͳͬͨɻ

fraction of collected charge

ͦͯ͠ Layer–1 ͱ Layer–2 ͕ઃஔ͞Ε͍ͯΔ [5]ɻ·ͨɼ
1
0.9

ATLAS

0.8

IBL planar modules

Preliminary

0.7
0.6
0.5

Data 80 V
Data 150 V

B–Layer ͱ disc ʹ͍ͭͯ͸ 2017 ೥ͷ 12 ݄ʹΞοϓά

0.4

ϨʔυΛߦͳ͍ɼ͜ΕʹΑͬͯ͢΂ͯͷ Pixel ‫ݕ‬ग़‫ʹث‬0.3

ରͯ͠ಡΈग़͠γεςϜͷΞοϓάϨʔυ͕‫ྃ͢׬‬Δɻ

0.2Standalone Simulation 80 V
Standalone Simulation 150 V

10ਤ 6 ʹ͸֤ Pixel ‫ݕ‬ग़‫Ͱث‬ಡΈग़͠γεςϜͷಉ‫ظ‬Τ

10 2Integrated Luminosity [fb -1]

ϥʔ͕ग़ׂͨ߹Λ࣌ؒͷؔ਺Ͱ͍ࣔͯ͠Δɻ2016 ೥͕

O(0.01) Ͱ͋ͬͨͷʹରͯ͠ɼ2017 ೥Ͱ͸ O(0.001) ͱɼਤ 7: ATLAS IBL Pixel ‫ݕ‬ग़‫͚͓ʹث‬Δిՙऩूޮ཰ͱ

͓ΑͦҰܻམͪͷΤϥʔϨʔτʹ͢Δ͜ͱ͕Ͱ͖ͨɻ

ੵ෼ϧϛϊγςΟͷ૬ؔΛࣔͨ͠ਤ [6]ɻ80 V ͱ 150 V

Fraction of modules with all sync. errosͷ 2 ͭͷ‫ٯ‬όΠΞεిѹͷέʔεʹ͍ͭͯɼ࣮σʔλΛ1
10−1ଌఆͨ݁͠ՌͱγϛϡϨʔγϣϯͰ༧૝͞ΕΔ݁ՌΛൺATLAS Pixel Preliminaryֱ͍ͯ͠Δɻ

80MHz, QS

80MHz, ECR-Resync
160MHz, QS, ECR-Resync, FE-Sync

3.2

10−2

SCT ‫ݕ‬ग़‫ث‬SCT (SemiConductor Tracker) ͸ετϦοϓ‫ܕ‬ͷγϦίϯඈ੻‫ݕ‬ग़‫ Ͱث‬Pixel ‫ݕ‬ग़‫ث‬ͷ֎෦Λ෴͏Α͏ʹઃ

10−3ஔ͞Ε͍ͯΔ [2, 7]ɻ2017 ೥ͷ SCT ӡస͸ඇৗʹ҆ఆ͓ͯ͠ΓɼϏδʔ౳ʹΑΔσουλΠϜ͸ 0.1%ʹ཈͑10−4ΒΕ͍ͯΔɻSCT ΋ LHC ͷߴ͍ϧϛϊγςΟͱύΠϧΞοϓʹରԠ͢ΔͨΊʹɼେ͖͘ 3 ͭͷվྑ͕ߦͳΘ−5

101000 1500 2000 2500 3000

Average (µ × Trigger rate[kHz])ਤ 6: ATLAS Pixel ‫ݕ‬ग़‫Ͱث‬ͷಡΈग़͠γεςϜͷಉ‫ظ‬Τϥʔͷׂ߹Λࣔͨ͠ਤ [6]ɻυοτʢࠇʣͱ࢛֯ʢ੨ʣ
ͷσʔλϙΠϯτ͸ 2016 ೥Ͱͷӡసঢ়‫گ‬Λࣔ͠ɼࡾ֯
ʢ੺ʣͷσʔλϙΠϯτ͸ 2017 ೥ͷӡసঢ়‫گ‬Λ͍ࣔͯ͠Δɻ2017 ೥Ͱ͸େ෯ʹಉ‫ظ‬ΤϥʔΛ཈͑Δ͜ͱʹ੒ޭͨ͜͠ͱ͕෼͔Δɻͦͷ΄͔ɼ์ࣹઢʹΑΔӨ‫؍͕ڹ‬ଌ͞ΕΔΑ͏ʹͳͬΕͨɻߴ͍ύΠϧΞοϓ࣌ʹಡΈग़͠ͷෛՙΛԼ͛ΔͨΊɼಡΈग़͢νοϓͷ਺ΛύΠϧΞοϓͷ‫߹ʹڥ؀‬ΘͤͯμΠφϛοΫʹมԽͤ͞Δ Chip Masking Λಋೖͨ͠ɻ

Fill ‫ޙ‬൒ʹͳΓύΠϧΞοϓͷ‫͕ڥ؀‬Ժ΍͔ʹͳΔʹ࿈ΕͯಡΈग़͢νοϓͷ਺Λ૿΍͍ͯ͘͠ɻਤ 8 Ͱ͸͜ͷChip Masking ͷޮՌͰΤϥʔͷׂ߹͕େ͖͘཈͑ΒΕ
͍ͯΔ͜ͱ͕෼͔Δɻ
·ͨɼChip Masking ͱ‫ʹڞ‬ಡΈग़͠σʔλͷϑΥʔϚοτΛߴѹॖ͢Δ͜ͱʹΑͬͯɼ͞Βʹ‫ڐ‬༰஋Λߴ͘
͢Δɻਤ 9 Ͱ͸͜ͷ Chip Masking ͱσʔλϑΥʔϚο534

ଟ͘ͷνοϓΛಡΈग़ͨ͢ΊɼύΠϧΞοϓ͔Βͷ੍໿͕ΑΓ‫ͳ͘͠ݫ‬Δ͕ɼͦΕͰ΋ 60 ͷύΠϧΞοϓ਺·Ͱ͸໰୊ͳ͘ӡసͰ͖Δ͜ͱ͕෼͔Δɻਤ 8: ATLAS SCT ‫ݕ‬ग़‫Ͱث‬ͷಡΈग़͠γεςϜͷಉ‫ظ‬Τϥʔͷׂ߹Λࣔͨ͠ਤ [8]ɻChip Masking Λ࢖͏͜ͱʹΑͬͯɼಡΈग़͠γεςϜͷಉ‫ظ‬ΤϥʔΛ໿ 10 ෼ͷ

1 ҎԼʹ௿‫͖Ͱݮ‬ΔɻτมߋʹΑΓɼߴ͍ύΠϧΞοϓ‫ڥ؀‬ԼͰ΋Τϥʔͷׂ߹͕େ͖͘཈͑ΒΕ͍ͯΔ͜ͱΛ͍ࣔͯ͠Δɻਤ 10: ATLAS SCT ‫ݕ‬ग़‫͚͓ʹث‬ΔಡΈग़͠όϯυ෯Λ௒͑ΔϑϩϯτΤϯυಡΈग़͠ͷ਺ͱύΠϧΞοϓͷ
૬ؔΛࣔͨ͠ਤ [8]ɻRx Redundancy ʹΑΓύΠϧΞο
ϓʹର͢Δ଱ੑ͸‫ݮ‬Δ͕ɼͦΕͰ΋ύΠϧΞοϓ਺͕ 60·Ͱ͸໰୊ͳ͍͜ͱ͕෼͔Δɻ

3.3

TGC ‫ݕ‬ग़‫ث‬TGC (Thin Gap Chamber) ͸ ATLAS ΤϯυΩϟοϓ
෦ͷϛϡʔΦϯΛτϦΨʔ͢ΔͨΊͷ‫ݕ‬ग़‫͋Ͱث‬Δ [9]ɻΤϯυΩϟοϓͷτϩΠυ࣓ੴͷ‫ ʹํޙ‬Big Wheel ͱ‫ݺ‬͹ΕΔ௚‫ ܘ‬25 ϝʔτϧ΄Ͳͷԁ൫ʹΨενΣϯόʔΛ‫ ܭ‬7 ૚ઃஔ͓ͯ͠ΓɼώοτͷίΠϯγσϯεΛͱΔ
͜ͱʹΑΓඈ੻Λ࠶ߏ੒͠ɼߴ଎ͰӡಈྔଌఆΛߦͳ͍ϛϡʔΦϯΛτϦΨʔ͢Δɻ·ͨɼΤϯυΩϟοϓτϩ
ਤ 9: ATLAS SCT ‫ݕ‬ग़‫͚͓ʹث‬ΔಡΈग़͠όϯυ෯ΛΠυ࣓ੴͷલํʹ Small Wheel ͱ‫ݺ‬͹ΕΔಉ༷ͷΨε௒͑ΔϑϩϯτΤϯυಡΈग़͠ͷ਺ͱύΠϧΞοϓͷ૬νΣϯόʔ͕‫ ܭ‬2 ૚ઃஔ͞Ε͓ͯΓɼBig Wheel ͱ SmallؔΛࣔͨ͠ਤ [8]ɻσʔλϑΥʔϚοτΛߴѹॖ͢Δ͜

Wheel ͷίΠϯγσϯεΛͱΔ͜ͱʹΑΓଟ͘ͷഎ‫ࣄܠ‬ͱʹΑΓɼύΠϧΞοϓʹର͢Δ଱ੑΛେ෯ʹ্͛Δ͜

৅Λམͱ͢͜ͱ͕Ͱ͖Δɻߴ଎Ͱͷӡಈྔ൑ఆΛ࣮‫͢ݱ‬ͱ͕Ͱ͖Δɻ

ΔͨΊʹɼ͋Β͔͡ΊӡಈྔͱώοτύλʔϯͷରԠද
Ͱ͋Δ Lookup Table Λ༻ҙͯ͠ɼτϦΨʔ൑ఆճ࿏ͷ

SCT ϑϩϯτΤϯυͷಡΈग़͠Ϟδϡʔϧ͸Ұͭʹ
ର͠ 12 ‫ݸ‬ͷνοϓ͕౥ࡌ͞Ε͓ͯΓɼಡΈग़͠͸ 2 ‫ܥ‬ϝϞϦʹμ΢ϯϩʔυ͓ͯ͘͠ɻώοτ৘ใ͕τϦΨʔ౷ͰߦͳΘΕɼͦΕͧΕ 6 ‫ݸ‬ͷνοϓʹରͯ͠ಡΈग़ͯ͠ରԠ͢ΔӡಈྔΛग़ྗ͢ΔɻATLAS ͷτϦΨʔͰ‫ڐ‬൑ఆճ࿏ʹೖྗ͞Εͨॠؒɼͦͷ Lookup Table Λ༻͍Λߦͳ͏ɻ΋͠ͻͱͭͷಡΈग़͠ϥΠϯʹෆ۩߹͕͋Δ

༰͞Ε͍ͯΔόϯυ෯͸τʔλϧͰ 100 kHz ·ͰͰ͋ͱɼ͔ͦ͜Β̒ͭνοϓ͕ಡΈग़ͤͳ͘ͳΔͷͰɼ΋͏

ΔͨΊɼߴϧϛϊγςΟͰ΋ͦͷόϯυ෯ʹऩΊΔͨΊยํͷಡΈग़͠ϥΠϯͰ΋ͦΕΒͷνοϓΛಡΈग़ͤΔ

ʹ͸‫͍͠ݫ‬τϦΨʔޮ཰ͷ࠷దԽ͕ඞਢͰ͋Δɻ

Α͏ʹ͢Δ redundancy (Rx Redundancy ͱ‫ )Ϳݺ‬Λ΋

2017 ೥ɼTGC Ͱ͸͜ͷཁ‫ʹٻ‬౴͑ΔͨΊʹίΠϯγ

ͨͤͨɻ͜ͷ৔߹ɼ12 ‫ݸ‬ͷνοϓ͕ͻͱͭͷϥΠϯͰσϯεʹ࢖༻͢Δ Lookup Table ͷ࠷దԽΛߦͳͬͨɻ

ಡΈग़͞ΕΔɻਤ 10 Ͱ͸ ATLAS SCT ‫ݕ‬ग़‫͚͓ʹث‬Δ࠷దԽʹ͸ 2016 ೥ͷ࣮σʔλΛ༻͍ɼΞϥΠϝϯτͳಡΈग़͠όϯυ෯Λ௒͑ΔϑϩϯτΤϯυಡΈग़͠ͷ਺Ͳͷ࣮σʔλʹ͔͠ͳ͍ޮՌ΋ࣗಈతʹߟྀ͢Δ͜ͱʹͱύΠϧΞοϓͷ૬ؔΛ͍ࣔͯ͠ΔɻͻͱͭͷϥΠϯͰ

ͳΔɻਤ 11 Ͱ͸ɼTGC Ͱऔಘ͞ΕͨϛϡʔΦϯτϥο

635ΫͷτϦΨʔޮ཰ΛϛϡʔΦϯͷԣํ޲ӡಈྔ pT ͷؔ୊Λ๊͑ͯͷ։ൃͰ͕͋ͬͨɼ2017 ೥͍ͭʹ͜ͷίΠ਺Ͱද͍ࣔͯ͠Δɻᮢ஋ 20 GeV ͷτϦΨʔʹରͯ͠ɼϯγσϯεΛΦϯʹͨ͠ϥϯΛͻͱͭऔಘ͢Δ͜ͱ͕Ͱ

2017 ೥τϦΨʔͷ্ཱ͕ͪΓ͕ɼઃఆ஋ͷ 20 GeV ʹΑ͖ͨɻύϑΥʔϚϯε͸‫ظ‬଴௨Γͷ΋ͷͰ͋ΓɼίϛοΓ͍͍ۙͮͯΔ͜ͱ͕෼͔Δɻ·ͨɼਤ 12 Ͱ͸ɼ2016γϣχϯά΋࠷ऴஈ֊ʹͳͬͨͱ‫͑ݴ‬Δɻཌ 2018 ೥ʹ೥ͱͷτϦΨʔϨʔτͷൺֱΛߦͳ͍ͬͯΔɻલ೥ʹൺ࠷ऴతͳ࣮૷Λ໨ࢦ͢ɻ΂ͯ 10%ͷϨʔτ࡟‫͍͖ͯͰݱ࣮͕ݮ‬Δ͜ͱ͕෼͔Δɻ
Tile Extended-Barrel

Ratio(17/16)

L1_MU20 trigger efficiency

1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2
1.5
1
0.5
0
5

TGC

Large (
12 m

6

5
10

1

BOL

2016 Data, 15.9 fb-1

2

3

4

5

6

5

NSW & TGC
coincidence
1.3 < | | < 2.4

4
EEL
8

2017 Data, 12.0 fb-1

BML

1

2

3

4

5

2

6

4

1
3

3

6
.
EIL4
L4

1

.2

.3

4

5

6

BIL

2
3

2
4

2
EIL

1

=2.4

End-cap
End-cap
magnettoroid

TGCs

1

=2.7
1

2

CSC

10

15

20

25

30

35

40

45

muon

Offline p50ޮ཰ΛϛϡʔΦϯͷԣํ޲ӡಈྔ pT ͷؔ਺Ͱදࣔͨ͠
ΖͰޮ཰্͕͕͓ͬͯΓɼᮢ஋ҎԼͷϛϡʔΦϯΛޮ཰Α͘མͱ͢͜ͱ͕Ͱ͖Δɻ

ATLAS Trigger Operations
Data 2016 and 2017,

0

z
0

2

4

6

8

10

12

14

16

18

20

[GeV]

ਤ [10]ɻ2016 ೥ͱൺֱΛ͢ΔͱɼΑΓᮢ஋ʹ͍ۙͱ͜

L1_MU20 Trigger Rate [kHz]

=1.3

RPCs
1.05 < |ηmuon| < 2.4

ਤ 11: TGC Ͱऔಘ͞Εͨ 20 GeV ᮢ஋ͷτϦΨʔͷਤ 13: ATLAS ‫ݕ‬ग़‫ث‬ͷஅ໘ਤ [11]ɻΤϯυΩϟοϓτϩ
Πυ࣓ੴΛ͸͞ΜͰɼBig Wheel TGC ͱ Small Wheel

TGC ͓Αͼ Tile ΧϩϦϝʔλ͕഑ஔ͞Ε͍ͯΔɻͦΕͧΕͷίΠϯγσϯεΛͱΔ͜ͱʹΑΓɼ޿ൣғͰഎ‫ܠ‬ࣄ৅Λམͱ͢͜ͱ͕Ͱ͖Δɻ4

s = 13 TeV

2016

15

Large (ATLAS Preliminary

T

20(TILE + EIL4) & TGC
coincidence
EOL
1.05 < | | < 1.3

=1.05
EML

·ͱΊ
2017 ೥ͷ LHC ͸ϏʔϜϩεͱ͍͏ਂࠁͳ໰୊Λ๊͑

2017͍ͯͨʹ΋͔͔ΘΒͣɼ͜Ε·Ͱ‫ه‬࿥͖ͯͨ͠தͰ࠷ߴ
ͷॠؒϧϛϊγςΟ2.09×1034 cm−2 s−1 Λୡ੒͠ɺੵ෼

10ϧϛϊγςΟ΋໨ඪͱ͍ͯͨ͠ 45 fb−1 Λ௒͑Δ 50 fb−1Λ‫ه‬࿥͢Δ͜ͱ͕Ͱ͖ɼRun 2 શମͷੵࢉ͸ 90 fb−1 ʹ5ୡ͢Δɻ2018 ೥Ͱ͸͞Βʹߴ͍ϧϛϊγςΟͰͷӡస͕‫ظ‬଴͞ΕɼRun 2 ͷτʔλϧͷੵ෼ϧϛϊγςΟ͸

0
2

4

6

8

18

150 fb−1 ʹͳΔͱΈ͜·Ε͍ͯΔɻATLAS ‫ݕ‬ग़‫ث‬΋ඇ

Inst. Luminosity [ x 10 33 cm -2 s -1 ]ৗʹ҆ఆͯ͠σʔλΛऔಘ͓ͯ͠Γɼ·ͨɼߴϧϛϊγ

10

12

14

16

ਤ 12: 20 GeV ᮢ஋ͷϛϡʔΦϯτϦΨʔͷϨʔτΛॠؒϧϛϊγςΟͷؔ਺Ͱදࣔͨ͠ਤ [10]ɻ໿ 10%ͷϨʔτ࡟‫͕֬ݮ‬ೝͰ͖ͨɻ

ςΟɾߴύΠϧΞοϓ‫ڥ؀‬ԼͰ΋ޮ཰Α͘σʔλऔಘͰ͖ΔΑ͏ͳ४උΛ੔͍͑ͯΔɻΫΥϦςΟͷߴ͍͜ͷେ౷‫ܭ‬ͷσʔλ͔ΒҰମͲͷΑ͏ͳ෺ཧ݁Ռ͕Ͱͯ͘Δ
͔ɼͱͯ΋ָ͠ΈͰ͋Δɻ

TGC ͸ Tile ΧϩϦϝʔλͱͷίΠϯγσϯεΛͱΔ͜ͱʹΑΓɼ͞ΒʹϨʔτΛ࡟‫͢ݮ‬Δ͜ͱ‫ܭ‬ըͯ͠
͍Δ [1, 11]ɻਤ 13 ʹ ATLAS ‫ݕ‬ग़‫ث‬ͷஅ໘ਤΛࣔ͢ɻ

Tile ΧϩϦϝʔλͱ Big Wheel TGC ͷίΠϯγσϯε
2

͸ 1.05 < |η| < 1.3 ͷྖҬʹରͯ͠ߦΘΕΔɻ৭ʑͳ໰
2 ϏʔϜ͔࣠Βͷ‫֯ۃ‬Λ θ ͱͨ࣌͠ɼٖϥϐσΟςΟɼη ɼ͸ η =−ln tan(θ/2) Ͱఆٛ͞ΕΔɻ

ࢀߟจ‫ݙ‬[1] ۱ా౔ࢺɼߴΤωϧΪʔχϡʔεɼ34ɼ259 (2016);
ࢁதོࢤɼߴΤωϧΪʔχϡʔεɼ34ɼ267 (2016);
ࣉࢣ߂ਔɼߴΤωϧΪʔχϡʔεɼ34ɼ274 (2016).

736[2] Ի໺ӯढ़ɼᜊ౻ஐ೭ɼߴΤωϧΪʔχϡʔεɼ36ɼ
1 (2017).
[3] 129th LHCC Meetingɼhttps://indico.cern.ch/event/609813/;
130th LHCC Meetingɼhttps://indico.cern.ch/event/632309/;
131st LHCC Meetingɼhttps://indico.cern.ch/event/658856/;
132nd LHCC Meetingɼhttps://indico.cern.ch/event/679087/.
[4] ATLAS Luminosity Public Results Run 2ɼ
https://twiki.cern.ch/twiki/bin/view/AtlasPublic/
LuminosityPublicResultsRun2.
[5] ੜग़लߦɼా‫ۼ‬༸հɼߴΤωϧΪʔχϡʔεɼ33ɼ
61 (2014).
[6] ATLAS Pixel Public Resultsɼ
https://twiki.cern.ch/twiki/bin/view/AtlasPublic/
PixelPublicResults;
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PLOTS/PIX-2017-004/;
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PLOTS/PIX-2017-007/.
[7] ߴྗ޹ɼߴΤωϧΪʔχϡʔεɼ26ɼ61 (2008).
[8] ATLAS SCT Public Resultsɼ
https://twiki.cern.ch/twiki/bin/view/AtlasPublic/
SCTPublicResults;
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PLOTS/SCT-2017-002/;
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PLOTS/SCT-2017-001/.
[9] ਿຊ୓໵ɼ‫ށ‬ຊ੣ɼߴΤωϧΪʔχϡʔεɼ22ɼ
78 (2008);
ੴ໺խ໵ɼߴΤωϧΪʔχϡʔεɼ22ɼ304 (2008);
ࠤʑ໦मɼ஑໺ਖ਼߂ɼߴΤωϧΪʔχϡʔεɼ26ɼ

242 (2007);ాதल࣏ɼߴΤωϧΪʔχϡʔεɼ25ɼ37 (2006).

[10] ATLAS L1 Muon Trigger Public Resultsɼ
https://twiki.cern.ch/twiki/bin/view/AtlasPublic/
L1MuonTriggerPublicResults.
[11] ATLAS CollabolationɼTechnical Design Reportfor the Phase-I Upgrade of the ATLAS TDAQ
SystemɼCERN-LHCC-2013-018.