1267

˙ ‫঺ڀݚ‬հ

LHC ATLAS ࣮‫ݧ‬ɹ Run2 ͷ෺ཧ݁Ռ౦‫ژ‬େֶૉཻࢠ෺ཧࠃࡍ‫ڀݚ‬ηϯλʔࢁத ོࢤyamanaka@icepp.s.u-tokyo.ac.jp

playRun2Physics

2016 ೥ (ฏ੒ 28 ೥) 2 ݄ 8 ೔

playRun2Physics

1

͸͡Ίʹ

Run2 ࠷ॳͷղੳ݁ՌΛૉૣ͘ग़ͤΔΑ͏୯७Խͨ͠
ղੳ͕ओͰ͋ΔɻͦΕͰ͍ͯɼ୯ʹॏ৺‫ܥ‬ΤωϧΪʔͩ

2 ೥ؒͷγϟοτμ΢ϯΛ‫ͯܦ‬ɼ2015 ೥ΑΓ͍Α͍Αॏ৺‫ܥ‬ΤωϧΪʔ 13 TeV Ͱͷཅࢠɾཅࢠিಥ࣮‫͕ݧ‬͚ʹཔΒͣ Run1 Λ௒͑Δ‫౓ײ‬ΛಘΔͨΊɼͦΕͧΕͷղੳͰվળΛਤ͍ͬͯΔɻ

LHC Ͱ։࢝͞Εͨɻ౰ॳͷ༧ఆ͸Լճͬͨ΋ͷͷɼ࠷ऴతʹ 4.0 fb−1 ͷੵ෼ϧϛϊγςΟΛ ATLAS ࣮‫Ͱݧ‬WJS2013100

ratios of LHC parton luminosities: 13 TeV / 8 TeV͸஝ੵ͠ɼͦͷ಺ɼ෺ཧղੳʹ͸ 3.2 fb−1 ఔ౓͕࢖༻
luminosity ratioՄೳͰɼ࠷ॳͷ෺ཧ݁ՌΛग़͢ʹ͸े෼ͳ౷‫͕ྔܭ‬ಘΒΕͨɻຊߘͰ͸ɼ͜͜ͰಘΒΕͨओͳ෺ཧ݁Ռʹ͍ͭͯ
঺հ͢Δɻͳ͓ɼRun2 ͷ݁ՌͷதͰ΋ɼ‫ࡏݱ‬Ұࡍ஫໨ΛूΊ͍ͯΔ̎ޫࢠ‫ڞ‬໐ঢ়ଶͷ୳ࡧʹؔͯ͠͸ɼࣉࢣࢯʹΑΔผͷ‫ʹࣄه‬ৡΔɻ

gg _
Σqq
qg
10

Θͨࣗ͠਎͸ Run2 Ͱ৽෺ཧͷൃ‫ݟ‬Λ໨ࢦ͠ɼಛʹ௒
MSTW2008NLO

ରশੑཻࢠ୳ࡧΛઐ໳ʹߦ͓ͬͯΓɼͦͷ݁ՌΛ࠷ॳʹ

1

100

MX (GeV)ड़΂Δɻ࣍ʹɼॏ৺‫ܥ‬ΤωϧΪʔ͕େ͖͘ͳͬͨ͜ͱʹΑΓɼ‫্͢޲͕౓ײ‬Δͦͷ΄͔ͷ৽෺ཧ୳ࡧʹ͍ͭͯड़΂Δɻ·ͨɼ৽෺ཧ୳ࡧΛߦ͏্Ͱඪ४໛‫ܕ‬ͷཧղ΋ෆՄܽͰ͋ΓɼATLAS ೔ຊάϧʔϓ΋༷ʑͳղੳʹߩ‫ݙ‬1000

ਤ 1: ॏ৺‫ܥ‬ΤωϧΪʔ 13 TeV ͱ 8 TeV Ͱͷཻࢠੜ੒ʹର͢ΔύʔτϯϧϛϊγςΟͷൺ [1]ɻ͍ͯ͠Δɻͦͷ݁Ռʹ͍ͭͯ΋ଓ͚ͯ঺հ͢Δɻ

2.1

2௒ରশੑཻࢠ୳ࡧ

άϧʔΠʔϊ୳ࡧάϧʔΠʔϊ୳ࡧͰ༗ྗͳൃ‫ݟ‬νϟϯωϧͷҰͭ͸ɼά௒ରশੑཻࢠ୳ࡧΛ‫ؚ‬Ίͨɼඪ४໛‫ܕ‬Λ௒͑Δ෺ཧͰϧʔΠʔϊର͕ͦΕͧΕχϡʔτϥϦʔϊ͓ΑͼΫΥʔ༧‫͞ݴ‬ΕΔ৽ཻࢠ୳ࡧʹ͓͍ͯ͸ɼॏ৺‫ܥ‬ΤωϧΪʔ͕Ϋରʹ௚઀่յ͢Δաఔʢਤ 2ʣΛओͳλʔήοτͱ͠େ͖͘ͳ͔ͬͯΒͷ࠷ॳͷ࣌‫࠷͕ظ‬΋ΤΩαΠςΟϯά

ͨɼ0 ϨϓτϯʴϚϧνδΣοτʴߴফࣦӡಈྔͷऴঢ়

Ͱ͋Ζ͏ɻਤ 1 ʹɼॏ৺‫ܥ‬ΤωϧΪʔ 13 TeV ͱ 8 TeVଶΛ༻͍ͨ୳ࡧͰ͋ΔɻͰͷ৽ཻࢠͷੜ੒அ໘ੵͷൺΛ͕ࣔ͢ɼॏཻ͍ࢠʹͳΔ
΄Ͳ 13 TeV ʹͳΔ͜ͱʹΑΔ૿͑ํ͕େ͖͘ɼ·ͨɼάϧʵΦϯɾάϧʵΦϯͷ PDFʢParton Distribution

Functionʣ͔Βੜ੒͞ΕΔ΋ͷ΄Ͳɼେ͖͍͜ͱ͕Θ͔ΔɻͦͷͨΊɼ‫͍ڧ‬૬‫͔༻࡞ޓ‬Βੜ੒͞ΕΔॏཻ͍ࢠ΄Ͳɼগͳ͍౷‫ Ͱܭ‬8 TeV ͷ‫౓ײ‬Λ௒͑Δ͜ͱ͕Մೳʹ
ͳΔɻ௒ରশੑཻࢠ୳ࡧʹ͓͍ͯ΋άϧʵΦϯͷ௒ରশੑύʔτφʔͰ͋ΔάϧʔΠʔϊͷ୳ࡧ͕·ͣॏ఺తʹਤ 2: άϧʔΠʔϊର͔ΒͷχϡʔτϥϦʔϊ͓ΑͼߦΘΕͨɻΫΥʔΫର΁ͷ௚઀่յաఔɻ

2
268

ߴ࣭ྔͷάϧʔΠʔϊ͔Βͷ่յཻࢠΛ‫ݟ‬ΔͨΊɼͦ
missΕΒͷཻࢠ͔Βੜ͡Δେ͖ͳԣফࣦӡಈྔʢET>

200 GeVʣɼpT > 200 GeV ͷδΣοτ͕ 1 ຊҎ্ɼpT >100 GeV ͷδΣοτ͕ 4 ຊҎ্Λཁ‫Ͱޙͨ͠ٻ‬ɼ͞Βʹ
!
miss+ pjetδΣοτͷԣӡಈྔͷεΧϥʔ࿨ meﬀ = ETT͕άϧʕΠʔϊͷ৴߸ࣄ৅ͱඪ४໛‫ܕ‬༝དྷͷόοΫά

ϥ΢ϯυΛ෼཭͢Δ্Ͱɼ༗ޮͳม਺ͱͳΔɻ͞ΒʹάϧʔΠʔϊͷ่յཻࢠͷτϙϩδʔ͕όοΫάϥ΢ϯυ
ʹൺ΂ͯҰ༷ʹ‫ٿ‬ঢ়ʹ޿͕Δ͜ͱʹண໨͠ɼΞϓϥφϦ
ςΟ[2] ͱ͍͏ม਺Λಋೖ͠ɼRun1 ͷղੳ͔ΒͷվળΛߦͬͨɻਤ 3 ʹ͜ͷ 4 δΣοτͷࣄ৅બ୒Λߦͬͨ‫Ͱޙ‬ͷɼmeﬀ ෼෍Λࣔ͢ɻ৴߸ྖҬʢmeﬀ > 2200 GeVʣʹ͓͍ͯɼ‫Ͱ఺࣌ݱ‬༗ҙͳ௒ա͸‫ݟ‬ΒΕ͓ͯΒͣɼͦͷ݁
Ռɼਤ 4 ͷΑ͏ʹɼ͢Ͱʹ Run1 Λ௒͑ΔύϥϝʔλྖҬ͕‫غ‬٫͞Ε͍ͯΔɻ͔͠͠ɼmeﬀ = 2 TeV Λ௒͑Δ
Α͏ͳࣄ৅΋‫؍‬ଌ͞Ε͸͡Ί͓ͯΓɼࠓ‫ޙ‬౷‫ͯ͑૿͕ܭ‬events / 100 GeV͔Βͷ୳ࡧ͕ॏཁͰ͋Δɻ
ATLAS Preliminary102

s=13 TeV, 3.2 fb-1

10

2.2

Z ʴδΣοτʴফࣦӡಈྔࣄ৅ͷ‫ূݕ‬΋͏Ұͭॏཁͳղੳ͸ɼRun1 ͷ ATLAS ʹͯɼ3.0σ(ee νϟϯωϧʣɼ1.7σ (µµ νϟϯωϧʣͷόοΫάϥ
΢ϯυ͔Βͷ௒աࣄ৅͕‫ݟ‬ΒΕ͍ͯͨ Z Ϙιϯʢ2 Ϩϓτϯʣʴ 2 δΣοτʴߴফࣦӡಈྔͷऴঢ়ଶͷ୳ࡧͰ
͋Δ [4]ʢCMS ͔Β͸ಉ༷ͷ৴߸ྖҬͰͷ୳ࡧ݁Ռ͸
Run1 Ͱ͸ͳ͠ʣɻ͜Ε͕ɼ‫͍ڧ‬૬‫͔༻࡞ޓ‬Βੜ͡ΔάϧʔΠʔϊͷΑ͏ͳཻࢠͷ่յաఔ͔Βੜ͍ͯ͡Δͱ͢Ε͹ʢਤ 5ʣɼRun2 Ͱɼॏ৺‫ܥ‬ΤωϧΪʔ͕େ͖͘
ͳͬͨ͜ͱʹΑΓɼগͳ͍ੵ෼ϧϛϊγςΟͰ΋‫͑ݟ‬͸͡ΊΔՄೳੑ͕͋ΔɻͦͷͨΊɼRun2 Ͱ΋ Run1 ͷղੳΛ౿ऻ͠ɼ·ͬͨ͘ಉ͡ࣄ৅બ୒Λߦͬͯͷඪ४໛‫ܕ‬༝དྷͷόοΫάϥ΢ϯυͷൺֱΛߦͬͨɻਤ 6 ͕ͦ͏ͯ͠ಘΒΕͨࣄ৅ͷ 2 Ϩϓτϯͷෆม࣭ྔ (mℓℓ ) Ҏ֎ͷબ୒Λߦͬͨ‫ޙ‬ͷ mℓℓ ෼෍Ͱ͋ΓɼZ Ϙιϯ࣭ྔ෇ۙʹ௒աࣄ৅͕‫ݟ‬ΒΕΔɻ࠷ऴతʹ৴߸ྖҬͱͯ͠ɼ

81 GeV< mℓℓ <101 GeV Ͱͷࣄ৅਺͸ 10.3 ± 2.3 ͷ༧ଌʹରͯ͠ɼ21 ͷ‫؍‬ଌ஋͕ಘΒΕ͓ͯΓɼ·ͩɼ༗ҙ

SR4jt
Data 2015
SM Total
DibosonZ+jetstt(+EW) & single top
W+jetsMulti−jet~~gg direct,~ ∼m(g, χ01)=(1400, 0)ͱ͸‫͍ͳ͑ݴ‬΋ͷͷ 2.2σ ͷ௒աͱͳΔɻ·ͨɼࠓճ͸eeɼµµ νϟϯωϧͰͦΕͧΕ 10ɼ11 ͷࣄ৅͕‫؍‬ଌ͞Ε͓ͯΓɼϑϨʔόʔؒͷରশੑ΋ߴ͍ɻ͔͠͠ͳ͕ΒɼRun2 Ͱ͸ CMS ͔Β΋΄΅ಉ༷ͷࣄ৅બ୒Λߦͬͨղੳ݁Ռ͕ग़͞Ε͓ͯΓ [5]ɼͦ͜Ͱ͸༗ҙͳ௒ա͸‫ݟ‬ΒΕͳ͍ɻࠓ‫ޙ‬ɼ౷‫͔ͯ͑૿͕ܭ‬Βͷ྆

1ऀͷແໃ६౓ͷ֬ೝ͕ඞཁʹͳͬͯ͘Δɻ
1000

Data / MC

2

1500

2000

2500

1.5

3000

3500

meff(incl.) [GeV]

1
0.5
0

1000

1500

2000

2500

3000

3500

meff(incl.) [GeV]ਤ 3: 0 Ϩϓτϯɼ4 δΣοτɼߴফࣦӡಈྔࣄ৅Ͱͷmeﬀ ෼෍ [3]ɻ

ਤ 5: άϧʔΠʔϊର͔Βͷ Z Ϙιϯ΁ͷ่յաఔͷྫɻ

1 1

ATLAS Preliminary

SUSY
Observed limit (± 1 σtheory)

miss

0-lepton + 2-6 jets + ET
s = 13 TeV, 3.2 fb

Expected limit (± 1 σexp)-1

ATLAS 8 TeV, 20.3 fb

1000

Events / 20 GeV

1200

1

mχ∼0 [GeV]

~~
∼0χ
∼0
g-g → qqqqχ
1400

-1

All limits at 95% CL
800

400

1

m

g~ <

m

χ∼ 0

600

30

s = 13 TeV, 3.2 fb-1
ee+µµ

25

Data 2015
Standard Model (SM)Z/ γ * (from γ +jets)
Flavour symmetric
Rare top

20

WZ/ZZ

15

200

0
200

35 ATLAS Preliminary

10
400

600

800

1000

1200

1400

1600

1800

2000

m~g [GeV]ਤ 4: άϧʔΠʔϊରੜ੒ʹର͢Δ࣭ྔύϥϝʔλ΁ͷ

5050

੍‫[ ݶ‬3]ɻ

100 150 200 250 300 350 400
mll [GeV]ਤ 6: 2 Ϩϓτϯɼ2 δΣοτɼߴফࣦӡಈྔࣄ৅Ͱͷmℓℓ ෼෍ [6]ɻ3269

ඪ४໛‫ܕ‬Λ௒͑ͨ෺ཧͷ୳ࡧ

3੍‫͕ݶ‬ಘΒΕ͍ͯΔɻ͜ΕΛ Run1 ͷ ATLAS ͷ݁Ռ [8]ͱൺֱ͢ΔͱɼW’→WZ Ͱ͸ɼ50 fb ͷ੍‫͍ͯͬͳͱݶ‬ͦͷ΄͔ͷඪ४໛‫ܕ‬Λ௒͑ͨ෺ཧͷ୳ࡧͰ͸ɼ༷ʑͳΔɻ͜Εʹ͞Βʹ 8 TeV ͔Β 13 TeV Ͱͷੜ੒அ໘ੵͷ‫ڞ‬໐ঢ়ଶͷ୳ࡧ͕ओʹͳΔɻ‫ڞ‬໐ঢ়ଶͷ୳ࡧ͸ɼϞσϧ૿ՃΛߟྀ͢Δͱɼ͢Ͱʹ Run1 Ͱͷ௒աΛઆ໌Ͱ͖ͳ

΁ͷґଘੑ͕খ͘͞ɼ৽෺ཧͷ୳ࡧʹ͓͍ͯɼඇৗʹ‫ڧ‬͘ͳ͍ͬͯΔɻ

2 Ϙιϯ‫ڞ‬໐ঢ়ଶͷ୳ࡧ

3.1

Run1 ͷղੳͰ͸ɼϘιϯͷ่յ͔Βੜͨ͡ 2 ຊͷδΣοτ͔Β૊Μͩෆม࣭ྔ mJJ ʹ͓͍ͯ 2 TeV ෇ۙʹσʔλͷ௒ա͕‫ݟ‬ΒΕɼ஫໨͕ू·ͬͨɻ΄͔ͷऴঢ়ଶ΋Ճ͑ͨ‫ޙ‬ͷඪ४໛‫͔ܕ‬ΒͷͣΕ͸ WZ νϟϯωϧ
ʹ͓͍ͯɼ2.5σ ʹ΋ͳΓɼRun2 Ͱͷ‫͕ূݕ‬଴ͨΕ͍ͯ
ͨɻRun2 Ͱࠓͷͱ͜ΖಘΒΕͨੵ෼ϧϛϊγςΟ͸ɼ√
Run1 Ͱ࠷ऴతʹಘΒΕͨ໿ 20 fb−1 ʢ s = 8 TeV) ͱσ(pp→W'+X)×BR(W'→WZ) [fb]ྗͳखஈͱͳΔɻ

104
ATLAS Preliminarys = 13 TeV, 3.2 fb-1
Observed 95% CL
Expected 95% CL
± 1σ
± 2σ
HVT W'→WZ

103

102

10

ൺ΂ͯখ͍͕͞ɼຊ෺ͷ৽ཻࢠͷ৴߸Ͱ͋ΔͳΒ͹ɼ্Ͱड़΂ͨΑ͏ʹॏ৺‫ܥ‬ΤωϧΪʔ͕େ͖͘ͳͬͨ͜ͱʹ1Αͬͯੜ੒அ໘ੵ͕େ͖͘ͳΓɼ͢Ͱʹಉఔ౓ͷ৴߸͕

1500‫ظ‬଴͞ΕΔɻ

2000
mW' [GeV]͜ͷղੳͰ͸ɼϋυϩχοΫ่յͨ͠ϘιϯΛ࠶ߏ੒͢ΔͨΊɼ൒‫ܘ‬ύϥϝʔλ1 R = 1.0 ͷେ͖͍αΠζͷਤ 8: W’→WZ ͷੜ੒அ໘ੵʹର͢Δ੍‫[ ݶ‬7]ɻ

δΣοτΛ༻͍Δɻਤ 7 ʹɼ͜ͷδΣοτʹϘιϯʢW·ͨ͸ Zʣͷ࣭ྔΛཁ‫͠ٻ‬ɼ͞ΒʹͦΕΒ 2 ຊͷδΣοͦͷ΄͔ɼWW,WZ→ ℓνqq [9]ɼZW,ZZ→ ℓℓqq,ννqqτ͔Β૊Μͩෆม࣭ྔͷ෼෍Λࣔ͢ɻ͝ཡͷΑ͏ʹɼ‫ݱ‬[10, 11] ͓Αͼ HW, HZ→bbℓν, bbℓℓ, bbνν [12] , ͷ‫ڞ‬໐ঢ়ଶͷ୳ࡧ΋͢Ͱʹ Run2 ͰߦΘΕ͕ͨɼ͍ͣΕʹ͓

WZ ͷ৔߹Ͱ͋Δ͕ɼWWɼZZ ͷ৔߹΋ಉ༷Ͱ͋Δɻ͍ͯ΋ඪ४໛‫ܕ‬ͷόοΫάϥ΢ϯυ͔Βͷ༗ҙͳ௒ա͸

Events/100 GeV

ঢ়ɼ2 TeV ෇ۙʹ༗ҙͳ௒աࣄ৅͸‫ݟ‬ΒΕͳ͍ɻਤ 7 ͸‫ݟ‬ΒΕ͍ͯͳ͍ɻ

103
102

ATLAS Preliminary

Data 2015

s = 13 TeV, 3.2 fb-1

Fit bkg estimation
Fit exp. stats error

3.2

WZ selection

10

Run2 Ͱͷ୳ࡧʹ͓͍ͯ 2 ޫࢠ‫ڞ‬໐ঢ়ଶʹ௒աࣄ৅͕
‫ݟ‬ΒΕ͍ͯΔ͜ͱ͔Βɼͦͷ΄͔ͷ‫ڞ‬໐ঢ়ଶͷ୳ࡧʹ΋1

஫໨͕ू·͍ͬͯΔɻ2 δΣοτ‫ڞ‬໐ঢ়ଶͷ୳ࡧͰ͸ɼάϧʵΦϯ΍ΫΥʔΫ͔ΒͷδΣοτΛ‫ݟ‬ΔͨΊɼR = 0.4

10-1

Pull

1000

2
0
-2

1000

ͦͷ΄͔ͷ‫ڞ‬໐ঢ়ଶͷ୳ࡧ

1200

1400

1600

1800

2000

2200

2400
x

ͷখ͍͞൒‫ܘ‬ύϥϝʔλͰ࠶ߏ੒ͨ͠ 2 ຊͷδΣοτͷ
ෆม࣭ྔʢmjj ʣ෼෍Ͱͷ୳ࡧΛߦ͕ͬͨɼਤ 9 ͷΑ͏ʹɼඪ४໛‫͔ܕ‬Βͷ༗ҙͳͣΕ͸‫ݟ‬ΒΕͳ͍ɻ

1200

1400 1600

1800

2000

2200 2400
mJJ [GeV]ਤ 7: W ͓Αͼ Z Ϙιϯ࣭ྔΛ࣋ͬͨ 2 ຊͷδΣοτ͔Β૊Μͩෆม࣭ྔͷσʔλͷࣄ৅਺͓ΑͼϑΟοτ͔Β‫ٻ‬ΊͨόοΫάϥ΢ϯυͷ෼෍ [7]ɻ͜ΕΑΓɼͨͱ͑͹ɼW’→WZ ͷੜ੒அ໘ੵʹ੍‫ݶ‬Λ෇͚ͨ݁Ռ͕ਤ 8 Ͱ͋ΔɻmW′ = 2 TeV Ͱ͸ɼ40 fb ͷ
1 ൒‫ܘ‬ύϥϝʔλ R ͷ‫཭ڑ‬͸ɼϏʔϜ࣠·ΘΓͷํҐ֯ͷࠩ ∆φͱϥϐσΟςΟͷࠩ ∆y Λ༻͍ͯ ∆R =
͞ΕΔɻ!

(∆φ)2 + (∆y)2 Ͱఆٛ͜ͷ 2 ຊδΣοτͷϥϐσΟςΟͷࠩ y ∗ = (y1 − y2 )/2∗͔Βɼχ = e2|y | ͱ͍͏ྔΛఆٛ͢ΔͱɼϥϐσΟςΟ
͕ Lorentz ෆมͰ͋Δ͜ͱ͔Βɼ͜Ε͸ 2 ຊͷδΣοτ
ͷॏ৺‫Ͱܥ‬΋౳͘͠ɼ·ͨɼॏ৺‫Ͱܥ‬ͷϏʔϜ͔࣠Βͷ֯౓ θ∗ Λ༻͍ͯɼχ = (1+cos θ ∗ )/(1−cos θ∗ ) ͱද͞ΕΔɻඪ४ཧ࿦༝དྷͷόοΫάϥ΢ϯυ͸ t-channel Ͱੜ੒͞ΕΔάϧʵΦϯ͕େ൒Ͱ͋ΔͨΊɼੜ੒அ໘ੵ͸ χʹΑΒͣ΄΅ҰఆʹͳΔͷʹର͠ɼ৽ཻࢠ͕ s-channelͰੜ੒͞ΕΔͱɼ͔ͦ͜ΒͷͣΕ͕‫ظ‬଴͞ΕΔɻਤ 10͸ɼχ ΛҟͳΔ mjj Ͱ੾Γͩͨ͠ͱ͖ͷ‫؍‬ଌ஋ͱඪ४໛

4270‫͔ܕ‬Βͷ༧ଌͰ͋Δ͕ɼͪ͜ΒͰ΋༗ҙͳͣΕ͸‫ݟ‬ΒΕͳ͍ɻͦͷ΄͔ɼ2 Ϩϓτϯ‫ڞ‬໐ [13]ɼϨϓτϯɾԣফࣦӡಈྔ‫ڞ‬໐ [14] Ͱͷ୳ࡧ͕ Run2 ͰߦΘΕ͕ͨɼ͍ͣΕʹ͓͍ͯ΋௒աࣄ৅͸‫͍ͳ͍͔ͯͬͭݟ‬ɻࠓ‫ޙ‬ɼΑΓෳࡶͳղੳɼ͓Αͼେ͖ͳੵ෼ϧϛϊγςΟ͕ඞཁͳ 2 τοEventsϓ‫ڞ‬໐ɼ2 ώοάε‫ڞ‬໐Ͱͷ୳ࡧ͕ߦΘΕΔ༧ఆͰ͋Δɻ

103

4.1

ඪ४໛‫ܕ‬ώοάεͷଌఆώοάεཻࢠ͸ Run1 Ͱൃ‫͞ݟ‬Εɼͦͷ‫ͳࡉৄޙ‬ଌఆ͕ߦΘΕ͖͕ͯͨɼ͞ΒͳΔߴ͍ਫ਼౓ͷଌఆʹΑΓɼඪ४໛‫ܕ‬ͷ‫͓ূݕ‬Αͼඪ४໛‫͔ܕ‬ΒͷͣΕͷ୳ࡧ͕‫ظ‬଴͞ΕΔɻ·ͨɼRun1 Ͱະൃ‫ݟ‬ͷ่յաఔͷ୳ࡧ΋Ҿ͖ଓ৔߹͸ॏ৺‫ܥ‬ΤωϧΪʔ͕େ͖͘ͳͬͯ΋ɼੜ੒அ໘ੵ

s=13 TeV, 3.6 fb-1
Data
Background fit
BumpHunter interval
q *, mq * = 4.0 TeV
QBH (BM), m = 6.5 TeV

104ώοάεཻࢠͷଌఆɾ୳ࡧ

͖ॏཁͳ՝୊ͱͳ͍ͬͯΔɻ125 GeV ͷώοάεཻࢠͷ

ATLAS

105

4

͸ 8 TeV ͷ৔߹ͱൺ΂ͯ 2 ഒఔ౓ʹ͔͠ͳΒͳ͍ɻ͔͠͠ͳ͕Βɼ͢Ͱʹଌఆ͸ਫ਼ྗతʹߦΘΕ͓ͯΓɼ·ͩ༗ҙͳਫ਼౓ͷൃ‫ݟ‬͸͞Ε͍ͯͳ͍΋ͷͷɼඪ४ཧ࿦ͱແ

thໃ६ͳ݁Ռ͕ಘΒΕ͍ͯΔɻਤ 11 ͸ɼH→ γγ ͓Αͼ
102

ZZ ่յաఔ͔ΒಘΒΕͨੜ੒அ໘ੵͷଌఆ݁ՌͰ͋Δɻ

10

Significancedata - fit

190

σpp →H [pb]q *, σ × 3
QBH (BM)p -value = 0.67
Fit Range: 1.1 - 7.1 TeV|y*| < 0.6

80
70

0

H →ZZ *→4l
syst. unc.
comb. datam H = 125.09 GeV

QCD scale uncertainty

Tot. uncert. (scale ⊕ PDF+α s)

40

JES Uncertainty

0

30

−1

2

3

4

5

6

20

7

10

mjj [TeV]

s = 7 TeV, 4.5 fb-1
s = 8 TeV, 20.3 fb-1
s = 13 TeV, 3.2 fb-1

0

ਤ 9: 2 ຊͷδΣοτ͔Β૊Μͩෆม࣭ྔ෼෍ [15]ɻ

1/N dN/dχs = 13 TeV, 3.6 fb-1

10

11

12

13
s [TeV]γγ ɼH→ZZ ͷ఺͸ x ࣠ํ޲ʹͣΒͯ͠ද͍ࣔͯ͠Δɻ

Theoretical uncertainties

0.02

0.06

0.06
4.6 < mjj < 5.4 TeV

0.04

0.04

0.02

0.02

0.06

0.06
3.4 < mjj < 4.0 TeV

0.04

0.04

0.02

0.02

0.06

0.06
2.8 < mjj < 3.1 TeV

0.04

0.04

0.02

0.02
20 1

χ

Run1 Ͱ͸ɼ࠷ऴతʹ H→bb ʹ͍ͭͯ͸ɼ୯ಠ࣮‫Ͱݧ‬ͷ༗ҙͳਫ਼౓Ͱͷൃ‫ݟ‬͸Ͱ͖͍ͯͳ͔ͬͨɻ·ͨɼώο

Total uncertaintiesάεཻࢠͱτοϓΫΥʔΫͷ౬઒݁߹͸ɼϧʔϓΛ௨͠

4.0 < mjj < 4.6 TeVͯ‫͍͖ͯى‬Δ͜ͱ͸ɼώοάεཻࢠͷੜ੒அ໘ੵͷଌఆ͔Β࣮֬ͱߟ͑ΒΕΔ͕ɼ௚઀ଌఆΛߦ͏͜ͱ͸ෆՄܽͰ͋ΓɼttH ੜ੒աఔͷൃ‫ݟ‬΋ॏཁͱͳΔɻRun2 Ͱ࠷

3.1 < mjj < 3.4 TeVऴతʹ༧ఆ͞Ε͍ͯΔ 100 fb−1 ͷੵ෼ϧϛϊγςΟ͕͋Ε͹ɼ͜ΕΒͷଌఆ͕े෼Մೳͱ‫ظ‬଴͞Ε͍ͯΔɻ

2.5 < mjj < 2.8 TeV

4.22

3 4 56

10

20 30

χ

ਤ 10: 2 ຊͷδΣοτ͔Β‫ ͨ͠ࢉܭ‬χ ͷҟͳΔ mjj ྖҬͰͷ෼෍ [15]ɻ

9

ਤ 11: ώοάεཻࢠͷੜ੒அ໘ੵͷଌఆ݁Ռ [16]ɻH→

QBH (QBH), M th= 8.0 TeV

0.04

10

8

SM

CI, ηLL = -1, Λ = 17 TeV

3 4 56

7

CI, ηLL = +1, Λ = 12 TeV

Data

0.06

2

−10

ATLAS

mjj > 5.4 TeV

0.08

1

σpp →H

50−2

Data-MCMC

H →γ γ60

2

1

ATLAS Preliminaryॏ͍ώοάεཻࢠͷ୳ࡧ͢Ͱʹൃ‫͞ݟ‬Εͨඪ४໛‫ͱܕ‬ແໃ६ͳώοάεཻࢠͷଌఆ͚ͩͰͳ͘ɼඪ४໛‫ܕ‬Λӽ͑ͨཧ࿦Ͱଘࡏ͕༧‫͞ݴ‬
ΕΔɼ͞Βʹॏཻ͍ࢠͷ୳ࡧ΋ॏཁͰ͋ΔɻதͰ΋௒ରশੑཧ࿦Λ͸͡Ίͱͨ͠ଟ͘ͷཧ࿦ʹొ৔͢Δ 2 ‫ݸ‬ͷώοάεೋॏ߲໛‫͕ܕ‬༗ྗࢹ͞Ε͓ͯΓɼ͢Ͱʹ Run2
Ͱਫ਼ྗతͳ୳ࡧ͕࢝·͍ͬͯΔɻ

H/A→ τ τ νϟϯωϧ͸ɼൺֱత୯७ͳऴঢ়ଶͰ͋
ΓɼόοΫάϥ΢ϯυ͕গͳ͍͜ͱ͔Βɼ౷‫ܭ‬ͷগͳ

5271

͍ Run2 ॳ‫͔ظ‬Β‫͍ߴ͕౓ײ‬ɻ2 ͭͷλ΢ཻࢠ͕྆ํ
ϋυϩχοΫ่յ͢Δ τhad τhad νϟϯωϧͱɼยํͷλ΢ཻࢠ͕ϨϓτχοΫ่յΛ͢Δ τlep τhad νϟϯωඪ४໛‫ܕ‬ͷଌఆ

5ώοάεཻࢠҎ֎ͷඪ४໛‫ࢠཻܕ‬ͷաఔʹ͍ͭͯ΋ɼϧͰͷ୳ࡧ͕ߦΘΕ͕ͨɼ‫Ͱ఺࣌ݱ‬͸่յ෼‫ذ‬ൺͷେͦͷߴ͍ॏ৺‫ܥ‬ΤωϧΪʔͰͷཧ࿦ͷ‫ͯ͠ͱূݕ‬ଌఆ͕͖͍ τhad τhad νϟϯωϧͷํ͕‫͍ߴ͕౓ײ‬ɻࠓ‫ޙ‬ɼ౷ߦΘΕ͍ͯΔɻ͜ΕΒ͸ɼ͞Βʹཧ࿦͔ΒͷͣΕΛ‫ݟ‬Δ‫͑૿͕ܭ‬Δʹै͍ɼϨϓτχοΫνϟϯωϧͷ‫͕౓ײ‬͜ͱͰɼඪ४໛‫ܕ‬Λ௒͑Δ෺ཧͷؒ઀తͳূ‫ͳͱڌ‬ΔՄ‫ܥ‬౷‫ࠩޡ‬ͷਫ਼౓ʹΑΓ‫͕౓ײ‬৳ͼͯ͘ΔɻόοΫάϥೳੑ͕͋Δɻ·ͨɼ͜͏ͯ͠ಘΒΕͨύϥϝʔλΛཧ࿦=΢ϯυͱ৴߸ͷ෼཭ʹ͸࠷ऴతʹԣ࣭ྔͷ࿨ mtot
T
!
2
miss
2
miss
2
mT (ET , τ1 ) + mT (ET , τ2 ) + mT (τ1 , τ2 ) ͕࢖ΘʹϑΟʔυόοΫ͢Δ͜ͱʹΑΓɼ΄͔ͷ৽෺ཧ୳ࡧʹΕ͍ͯΔɻਤ 12 ʹ τhad τhad νϟϯωϧͰͷ mtot
T ෼෍͓͚ΔόοΫάϥ΢ϯυͷϞσϦϯάΛ޲্ͤ͞Δ͜ͱʹ΋ͳΔɻΛ͕ࣔ͢ɼόοΫάϥ΢ϯυ͔Βͷ༗ҙͳͣΕ͸‫ݟ‬ΒΕͳ͍ɻਤ 13 ͸ɼmtot
T ෼෍ΛόοΫάϥ΢ϯυͱ৴߸ࣄ৅ͷ෼෍Ͱ binned likelihood fit ͯ͠ಘΒΕͨύϥϝʔλྖҬͰͷ੍‫͋Ͱݶ‬Δɻߴ͍࣭ྔྖҬͰ͸ɼRun1 Ͱͷ੍‫ݶ‬Λ௒͑ͨྖҬ·Ͱ੍‫͍͍ͯ෇͕ݶ‬Δɻ

5.1

τοϓΫΥʔΫͷଌఆτοϓΫΥʔΫରͷੜ੒அ໘ੵ͸ɼͦͷΑ͏ͳଌఆྔͷҰͭͰ͋ΔɻRun2 Ͱ͸͢Ͱʹ eµ νϟϯωϧ [18]Events / GeV͓Αͼɼee/µµɼe/µ ʴδΣοτνϟϯωϧ [19] Ͱͷଌ102

ATLAS Preliminarys = 13 TeV, 3.2 fb
H/A → τhadτhad

10

-1

1

Data
H/A → ττ
mA = 500 GeV, tanβ = 25
MulitjetZ→ττW→τν
tt, single top
Others
Uncertainty
Pre-fit backgroundఆ͕ߦΘΕ͓ͯΓɼeµ νϟϯωϧͰͷਫ਼౓͕࠷΋ྑ͘ɼ

825 ± 50(stat) ± 56(syst) ± 83(lumi) pb ͱ 14%ͷ૬ର‫Ͱࠩޡ‬ଌΒΕ͍ͯΔɻਤ 14 ʹɼͦͷ݁ՌΛ CMS ͷଌఆ݁Ռͱͱ΋ʹࣔ͢ɻಘΒΕͨ݁Ռ͸τοϓΫΥʔΫ࣭
ྔ 172.5 GeV ΛԾఆͨ͠৔߹ͷ΋ͷͱແໃ६Ͱ͋Δɻ

10−1
ATLAS+CMS Preliminary LHCtop WG

10−2

scale ⊕ PDF ⊕ αS uncertainty−3

10

Data/Pred

σ t t summary, s = 13 TeV

NNLO+NNLL PRL 110 (2013) 252004, PDF4LHC
mtop = 172.5 GeV
scale uncertainty

2
1
0

ATLAS, dilepton eµ *ATLAS-CONF-2015-049

L int =78 pb

Nov 2015

total stat
σ tt ±(stat) ±(syst) ±(lumi)

829 ± 50 ± 56 ± 83 pb-1

200 300 400 500 600 700 800 900 1000

mtot
T [GeV]ATLAS, dilepton ee/µ µ *ATLAS-CONF-2015-049

749 ± 57 ± 79 ± 74 pb

L int =85 pb-1

ਤ 12: τhad τhad νϟϯωϧͰͷ mtot
T ෼෍ [17]ɻόοΫάϥ΢ϯυͷώετάϥϜ͸ຌྫͷॱʹੵΈॏͶͯ͋Δɻ

ATLAS, l+jets *tanβ

ATLAS-CONF-2015-049

80
70
60

ATLAS Preliminary, s=13 TeV, 3.2 fb-1
hMSSM scenario
H/A → ττ, 95% CL limits

CMS, dilepton eµ
arXiv:1510.05302

CMS-PAS TOP-15-005

1σ

769 ± 60 ± 55 ± 92 pb

L int =42 pb-1

L int =42 pb

836 ± 27 ± 84 ± 100 pb-1* Preliminary

2 σ
ATLAS Run-I (Obs.)

400///////// ATLAS Run-I, SM Higgs
boson couplings (Obs.)

20
10m H = 800 GeV

30m H = 1000 GeV

m H = 300 GeV

40

817 ± 13 ± 103 ± 88 pb-1

CMS, l+jets *Observed
Expected50

L int =85 pb

600

800
σt t [pb]

1000

1200

ਤ 14: ॏ৺‫ܥ‬ΤωϧΪʔ 13 TeV ͰͷτοϓΫΥʔΫରੜ੒அ໘ੵͷ ATLAS ͱ CMS ͷଌఆ݁Ռɼ͓ΑͼτοϓΫΥʔΫ࣭ྔ 172.5 GeV Ͱͷཧ࿦஋ [20]ɻ

200 300 400 500 600 700 800 900 1000 1100 1200

mA [GeV]τοϓΫΥʔΫରͷඍ෼அ໘ੵ΋·ͨɼॏཁͳଌఆ
ྔͰ͋ΔɻτοϓΫΥʔΫର͸ଟ͘ͷ৽෺ཧ୳ࡧʹ͓ਤ 13: H/A→ τ τ ୳ࡧʹΑΔɼhMSSM γφϦΦͰͷύ͍ͯɼओͳόοΫάϥ΢ϯυͷҰͭͱͳΓɼ·ͨɼ஫໨ϥϝʔλʹର͢Δ੍‫[ ݶ‬17]ɻ

͍ͯ͠ΔΩωϚςΟΫε͸෼෍ͷ୺ʹҐஔ͍ͯ͠Δ͜6
272

ͱ͕ଟ͘ɼਖ਼͘͠ QCD ͷύϥϝʔλΛνϡʔχϯά͠Θ͔Δɻࠓ‫ޙ‬ͷߴϧϛϊγςΟԽʹ޲͚ͯɼύϥϝʔλͳ͚Ε͹ɼ‫؍‬ଌ஋ͱҰக͠ͳ͍ɻࠓճ͸ಛʹɼτοϓͷ͞ΒͳΔνϡʔχϯά͕ඞཁͱ͞ΕΔɻ

ʹ͍ͭͯͷൺֱ͕ߦΘΕͨɻ‫ࡏݱ‬ओʹղੳͰ࢖༻͞Ε͍ͯΔτοϓΫΥʔΫରͷϞϯςΧϧϩγϛϡϨʔγϣϯ
ʢPoweHeg+Pythia6ʣ͸‫ࠩޡ‬ͷൣғ಺Ͱ‫؍‬ଌ஋ͱҰக͢Δ΋ͷͷɼ‫ܥ‬౷తʹδΣοτ਺Λগͳ͘‫ੵݟ‬΋͍ͬͯΔ͜ͱ͕Θ͔Δ (ਤ 15)ɻҰํͰΑΓ৽͍͠ϞϯςΧϧϩδΣωϨʔλͰ࡞ΒΕͨγϛϡϨʔγϣϯ͸‫؍‬ଌ஋ͱΑ͘Ұக͓ͯ͠Γɼࠓ‫͍͠৽ޙ‬δΣωϨʔλ΁ͷҠߦ

1/N ev ⋅ dN ch / dη ⎢η = 0ΫΥʔΫରʹ෇ਵͯ͠ੜ੒͞ΕΔδΣοτͷϞσϦϯά

1 dσ
σdN

jet

͕ඞཁͱ͞ΕΔɻ

ATLAS Preliminary

MC/DataT

ATLAS Preliminary

2.5

1

10−1

10
1.4
1.2
1
0.8
0.6

3

p > 500 MeV, n ch ≥ 1

1.5

13 TeV, 3.2 fb-1

add. jet pT ≥ 25 GeV

−3

3.5

Data
PYTHIA8 A2
PYTHIA8 MonashHERWIG++ UE-EE5
EPOS LHCQGSJET II-04

2

1

10−2

4

103
eµ -channel
Powheg+Pythia6
Powheg+Herwig++
aMCAtNLO+Herwig++
Powheg+Pythia8
Data

0 Stat.

1

Stat.+Syst

2

ਤ 16: ՙిཻࢠͷฏ‫ۉ‬ੜ੒਺ͷॏ৺‫ܥ‬ΤωϧΪʔґଘੑͷଌఆ஋ͱ֤छϞσϧൺֱ [22]ɻ

3

1

2

3

W ϘιϯɼZ Ϙιϯͷੜ੒அ໘ੵͷଌఆ͸ɼQCD ʴ

4

Number of additional jets

0104
s [GeV]

4

Number of additional jetsిऑཧ࿦ͷߴ͍ਫ਼౓Ͱͷ‫݁ࢉܭ‬Ռͷ‫ͳʹূݕ‬Δͱͱ΋ʹɼͦΕΒͷൺ͸ PDF ͷෆఆੑΛ‫ݮ‬Β্͢Ͱ‫ͳྗڧ‬ख
ஈͱͳΔɻਤ 17 ʹɼW ϘιϯɼZ Ϙιϯͷੜ੒அ໘ੵ
ͷଌఆ݁ՌΛ NNLO ͷ QCD ʴ NLO ͷిऑཧ࿦ͷ‫ܭ‬ࢉ݁Ռͱൺֱͨ͠΋ͷ͍ࣔͯ͠Δɻ‫ࡏݱ‬ɼ10%ͷ૬ର‫ޡ‬ਤ 15: eµ νϟϯωϧͰͷτοϓΫΥʔΫରࣄ৅ʹ͓͚ࠩͰଌఆ͕͞Ε͓ͯΓɼ‫ࠩޡ‬ͷൣғͰཧ࿦஋ͱҰகͯ͠

Δ pT > 25 GeV ͷδΣοτ਺ͷσʔλͱ֤छϞϯςΧ͍ΔɻҰํͰɼͦΕΒͷൺΛऔͬͨਤ 18 Ͱ͸Ͳͷ PDF

ϧϩγϛϡϨʔγϣϯͱͷൺֱ [21]ɻͱ΋‫ܥ‬౷తʹͣΕͨ݁Ռͱͳͬͨɻࠓ‫͜ޙ‬ͷ݁ՌΛ༻͍
ͯɼPDF ͷਫ਼౓޲্ʹ໾ཱ͍ͯͯ͘ɻ

5.2

ͦͷ΄͔ͷඪ४໛‫ܕ‬ͷଌఆ

Run2 ॳ‫ظ‬ͷ௿͍ϧϛϊγςΟͷσʔλ͸௿͍ΤωϧΪʔྖҬͰͷඇઁಈ࿦తͳ QCD ͷϞσϧͷ‫ʹূݕ‬ద͠
͍ͯΔɻ͜ͷϞσϧ͸ߴϧϛϊγςΟ‫ڥ؀‬ԼͰ‫͜ى‬Δɼ
ཅࢠɾཅࢠͷিಥ൓ԠͷύΠϧΞοϓࣄ৅ͷγϛϡϨʔγϣϯʹ࢖ΘΕ͍ͯΔͨΊɼࠓ‫ޙ‬༧ఆ͞Ε͍ͯΔߴ͍ϧϛϊγςΟͰͷղੳʹ͓͍ͯॏཁͳ໾ׂΛ࣋ͭɻͦͷͨΊɼ͜ͷΑ͏ͳϞσϧͷύϥϝʔλΛ੍‫͢ݶ‬Δͷʹ༗ޮͳɼશՙిཻࢠͷੜ੒அ໘ੵͷଌఆ͕ߦΘΕͨɻ‫ࡏݱ‬√ATLAS Ͱ࢖༻͞Ε͍ͯΔ Pythia8 A2 ͸ s = 7 TeVͷσʔλͰνϡʔχϯά͞Εͨ΋ͷͰ͋Γɼ͜Ε͕ߴ͍ॏ৺‫ܥ‬ΤωϧΪʔͰ΋ద༻Մೳ͔ͷ֬ೝ͕ඞཁͰ͋
Δɻਤ 16 ͸ՙిཻࢠͷฏ‫ۉ‬ੜ੒਺ͷॏ৺‫ܥ‬ΤωϧΪʔґଘੑΛଌఆ஋ͱ֤छϞσϧͱͰൺֱͨ͠΋ͷͰ͋Δɻ

Pythia 8 A2 ͸σʔλΛൺֱతΑ͘࠶‫͍ͯ͠ݱ‬Δ΋ͷ√ͷɼ s = 13 TeV Ͱ͸গͳΊʹ‫ੵݟ‬΋͍ͬͯΔ͜ͱ͕6·ͱΊҎ্ɼATLAS Run2 ͰಘΒΕͨ݁ՌΛ͔͍ͭ·ΜͰ঺հͨ͠ɻ৽෺ཧͷ୳ࡧʹ͓͍ͯ͸ɼRun1 ΑΓ΋খ͍͞ੵ෼ϧϛϊγςΟͳ͕Βɼॏ৺‫ܥ‬ΤωϧΪʔ૿ՃʹΑΓɼ͢Ͱʹଟ͘ͷνϟϯωϧʹ͓͍ͯ Run1 Λ্ճΔ੍‫͕ݶ‬෇͍͓ͯΓɼ2 Ϙιϯ‫ڞ‬໐ঢ়ଶͷΑ͏ʹ Run1 Ͱ‫ݟ‬ΒΕͨ௒աࣄ৅ʹ͍ͭͯɼ΄΅ܾண͕͚ͭΒΕͨ΋ͷ΋͋Δɻ
ҰํͰɼ৽ͨʹඪ४໛‫͔ܕ‬ΒͷͣΕͱ‫ݟ‬ΒΕΔΑ͏ͳࣄ৅͕‫͍ͯ͑ݟ‬Δνϟϯωϧ΋͋Γɼ౷‫͔ͯ͑૿͕ܭ‬Βͷ‫ظʹূݕ‬଴͕ߴ·Δɻͦͯ͠ɼ‫ ͩ·Ͱ఺࣌ݱ‬Run1 Λ্ճΔ‫౓ײ‬͸ͳ͍΋ͷͷɼRun2 Ͱ࠷ऴతʹ༧ఆ͞Ε͍ͯ
Δੵ෼ϧϛϊγςΟΛ΋ͬͯ͢Ε͹ɼ࣮֬ʹ݁Ռ͕‫ظ‬଴͞ΕΔώοάεཻࢠͷଌఆͳͲ΋͋ΔɻATLAS Run2
ͷࠓ‫ޙ‬ͷల։ʹ΋ɼͲ͏͔஫໨͍͖͍ͯͨͩͨ͠ɻ

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ࢀߟจ‫ݙ‬[1] http://www.hep.ph.ic.ac.uk/~wstirlin/
plots/plots.html.
[2] ATLAS, Eur. Phys. J. C 72 (2012) 2211.
[3] ATLAS, ATLAS-CONF-2015-062 (2015).

13 TeV, 85 pb[4] ATLAS, Eur. Phys. J. C 75 (2015) 318.

Z

ATLAS Preliminary-1[5] CMS, CMS-PAS-SUS-15-011 (2015).

lumi ⊕ exp. uncertainty
exp. uncertainty[6] ATLAS, ATLAS-CONF-2015-082 (2015).

ABM12LHC
CT10nnlo
NNPDF3.0
MMHT14nnlo68CL(inner uncert.: PDF only)
500

550

600

[7] ATLAS, ATLAS-CONF-2015-072 (2015).
[8] ATLAS, JHEP 12 (2015) 55.

650

700

750

800

850

σfid
[pb]
Z

W±

ATLAS Preliminary
13 TeV, 85 pb-1

6000

6500

[11] ATLAS, ATLAS-CONF-2015-068 (2015).

[13] ATLAS, ATLAS-CONF-2015-070 (2015).

ABM12LHC
CT10nnlo
NNPDF3.0
MMHT14nnlo68CL(inner uncert.: PDF only)
5500[10] ATLAS, ATLAS-CONF-2015-068 (2015).

[12] ATLAS, ATLAS-CONF-2015-074 (2015).

lumi ⊕ exp. uncertainty
exp. uncertainty

5000[9] ATLAS, ATLAS-CONF-2015-075 (2015).

[14] ATLAS, ATLAS-CONF-2015-063 (2015).
[15] ATLAS, Phys. Lett. B 754 (2016) 302–322.
7000

7500

8000

8500

9000

σfid
± [pb]
Wਤ 17: W± ͱ Z ͷੜ੒அ໘ੵͷଌఆ஋ͱҟͳΔ PDF Λ༻͍ͨཧ࿦஋ͷൺֱ [23]ɻ

[16] ATLAS, ATLAS-CONF-2015-069 (2015).
[17] ATLAS, ATLAS-CONF-2015-061 (2015).
[18] ATLAS, ATLAS-CONF-2015-033 (2015).
[19] ATLAS, ATLAS-CONF-2015-049 (2015).

ATLAS Preliminary-1

13 TeV, 85 pb[20] http://atlas.web.cern.ch/Atlas/GROUPS/R W/Z = σfid
/ σfidZ
W±

PHYSICS/CombinedSummaryPlots/TOP.

total uncertainty
stat. uncertainty[21] ATLAS, ATLAS-CONF-2015-065 (2015).

ABM12LHC
CT10nnlo
NNPDF3.0
MMHT14nnlo68CL

9

9.2

9.4

9.6

9.8

[22] ATLAS, ATLAS-CONF-2015-028 (2015).
1010.2 10.4 10.6 10.8

σfid
/ σfidZW±ਤ 18: W± ͱ Z ͷੜ੒அ໘ੵͷൺͷଌఆ஋ͱҟͳΔ PDF
Λ༻͍ͨཧ࿦஋ͷൺֱ [23]ɻ

[23] ATLAS, ATLAS-CONF-2015-039 (2015).