New physics searches in Z +MET events
CiRfSE Workshop
2017 / 1 / 24⟃Ἴ኱Ꮫ ⣲⢏Ꮚᐇ㦂◊✲ᐊᩘ⌮≀㉁⛉Ꮫ◊✲⛉ ≀⌮Ꮫᑓᨷ➟ཎ ᏹኴ
24th Jan. 17

CiRfSE WS

1ᴫせᮏ◊✲䛾┠ⓗ஦㇟㑅ู䛾᭱㐺໬⫼ᬒ஦㇟䛾ホ౯᪉ἲᐇ㦂⤖ᯝ䜎䛸䜑

24th Jan. 17

CiRfSE WS2ᮏ◊✲䛾┠ⓗ䝠䝑䜾䝇⢏Ꮚ䛜Ⓨぢ䛥䜜䚸ᶆ‽ᶍᆺ䛿ᐇ㦂ⓗ䛻☜䛛䜑䜙䜜䛯䛸ゝ䛘䜛䚹䛧䛛䛧䚸ᶆ‽ᶍᆺ䛷䛿ㄝ᫂䛷䛝䛺䛔ᐇ㦂஦ᐇ䜔୙⮬↛䛺Ⅼ䛜Ꮡᅾ䛩䜛䚹 Ex.) ᬯ㯮≀㉁䛾Ꮡᅾ䚸㝵ᒙᛶၥ㢟➼⌧ᅾ䛿䚸ᶆ‽⌮ㄽᣑᙇ䛜ᚲせ䛸ศ䛛䛳䛶䛔䜛䛜䚸䛭䛾ᡭ᥃䛛䜚䛿䛺䛔(ᬯ㯮≀㉁䛾᥈⣴䛿ୡ⏺୰䛷⾜䜟䜜䛶䛔䜛)䚹
䝰䝕䝹䛻౫Ꮡ䛧䛺䛔ໟᣓⓗ䛺᪂≀⌮᥈⣴䛜㔜せ◊✲ᑐ㇟ : Z + invisible particles䜢⏝䛔䛯᪂≀⌮᥈⣴•㔜䛔ᮍⓎぢඹ㬆≧ែ䛾᥈⣴•䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯ䛾᥈⣴
24th Jan. 17

CiRfSE WS3㔜䛔ᮍⓎぢඹ㬆≧ែ䛾᥈⣴୰ᛶ䛾⢏Ꮚ䛜Z䝪䝋䞁ᑐ䛻ᔂቯ䛩䜛㐣⛬䛿ᵝ䚻䛺䝰䝕䝹䛷ணゝ䚹ᮏゎᯒ䛾䝍䞊䝀䝑䝖㔜䛔ඹ㬆≧ែ᥈⣴䛾᭱኱䛾฼Ⅼ䛿䝰䝕䝹౫Ꮡ䛺䛟䚸᪂≀⌮䜢ໟᣓⓗ䛻᥈⣴ྍ⬟䚹X㔜ᚰ⣔䜶䝛䝹䜼䞊䛾ቑᙉ䛻క䛳䛶㧗䛔㉁㔞㡿ᇦ䛾ឤᗘ䛿O(10)ಸ⛬ᗘቑຍ䚹

Z + invisible

Run-1䛻
䛻䛚䛡䜛䝠䝑䜾䝇⢏Ꮚ᥈⣴䛾⤖ᯝᮏゎᯒ䛷䛿Z(→ll) + vv(invisible)䜢⤊≧ែ䛸䛧䛶౑⏝䚹㧗䛔ᔂቯศᒱẚ䜢ᣢ䛱䚸㧗䛔㉁㔞㡿
ᇦ䛷㠀ᖖ䛻䜽䝸䞊䞁䛺䝖䝫䝻䝆䞊䜢ᣢ䛴䚹
ZZ䝏䝱䞁䝛䝹䛻䛚䛔䛶䚸400 GeV௨ୖ䛷᭱䜒㧗䛔ឤᗘ䜢ᣢ䛴䚹

24th Jan. 17

CiRfSE WS4䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯ䛾᥈⣴
LHC䛷䛿䝠䝑䜾䝇⢏Ꮚ䛾ᔂቯᖜ(~4.2 MeV)䛾┤᥋ ᐃ䛿ᅔ㞴䚹㛫᥋ ᐃ䛷䜒䠑ಸ⛬ᗘ䛾ୖ㝈䚹ᮏゎᯒ䛾䝍䞊䝀䝑䝖᪂≀⌮䛜䝠䝑䜾䝇䝉䜽䝍䞊䛻Ꮡᅾ䛩䜛ྍ⬟ᛶ䛿Რ༷䛷䛝䛺䛔䚹ᮏ◊✲䛷䛿䝠䝑䜾䝇⢏Ꮚ䛜᳨ฟჾ䛻䛛䛛䜙䛺䛔⢏Ꮚ䠄ᬯ㯮≀㉁➼䠅䛻ᔂቯ䛩䜛㠀ྍどᔂቯ䜢᥈⣴䚹

Z + invisible⫼ᬒ஦㇟䛾ホ౯䛜ᐜ᫆䛺ZH㝶క⏕ᡂ䜢౑⏝䚹

Run-1

Higgs-portal model (ᬯ㯮≀㉁䛜䝠䝑
䜾䝇⢏Ꮚ䜢௓䛧䛶䛾䜏ᶆ‽ᶍᆺ⢏Ꮚ䛸┦஫స⏝)䜢௬ᐃ䛩䜜䜀䚸䝠䝑䜾䝇㠀ྍどᔂቯ䛜ᅽಽⓗ䛺ឤᗘ䜢ᣢ䛴䚹Z䛸㝶క䛧䛶㛗ᑑ࿨⢏Ꮚ䜔䚸ᬯ㯮≀㉁䛜⌧䜜䜛ሙྜ䛻䜒ほ ྍ⬟䚹24th Jan. 17

CiRfSE WS

5Invisible particle䛾䛾ྲྀ䜚ᢅ䛔䛸⫼ᬒ஦㇟䝙䝳䞊䝖䝸䝜䜔ᬯ㯮≀㉁➼䛾invisible particle䛿⢏Ꮚ᳨ฟჾ䛷䛸䜙䛘䜛஦䛜䛷䛝䛺䛔䛯䜑䚸෌ᵓᡂ䛥䜜䜛඲䛶䛾visible particle䛛䜙ᾘኻ㐠ື㔞(ETmiss, MET)䜢ゎᯒ䛷౑⏝䚹

LHC䛷䛿ゎᯒ䛾ᑐ㇟䛸䛩䜛ಙྕ௨እ䛻䜒Z(→ll)+MET䛾⤊≧ែ䜢ᣢ䛴᪤▱䛾≀⌮஦㇟䠄⫼ᬒ஦㇟䠅䜒ከ䛟⏕ᡂ䛥䜜䜛䚹⫼ᬒ஦㇟ (኱䛝䛥㡰)
1. ZZ→llvvZ䝪䝋䞁ᑐ⏕ᡂ஦㇟νಙྕ஦㇟

2. WZ→lvll
3. WW/tt/Z→ττZ

4. Z + jets
5.

W + jets, multi-jetsνlZಙྕ஦㇟䛸⫼ᬒ஦㇟䛾ศ㞳䚸⢭ᐦ䛺⫼ᬒ஦㇟ホ౯䛜ᴟ䜑䛶㔜せ24th Jan. 17

CiRfSE WS6஦㇟㑅ู䛾᭱㐺໬᭱㐺໬䛾᪉ἲ
䜹䝑䝖್䜢ኚ䛘䛺䛜䜙䚸significance(Z)䜢ィ⟬䚹
Z䛜᭱䜒㧗䛟䛺䜛್䜢䜹䝑䝖್䛸䛧䛶㑅ᐃ䚹

ATLAS
work in progress
13 TeV, 3 fb-1

᭱㐺໬䛩䜛ኚᩘ௨እ䛾䜹䝑䝖್䛿ᅛᐃ䛧䛯䚹Z= ʹܵ ൅ ‫ ͳ  ܤ‬൅౑⏝䛩䜛ኚᩘ
• MET cut
• ΔR(l, l)• (PTll – Etmiss, jets)/PTll• οφ(Z, ETmiss)• b-tagged jets veto :• Z PT/MT• Min. Δɸ(jets, ETmiss)24th Jan. 17ௌ஻െܵ୺䛻Z+jets䛾ᢚไ䜢┠ⓗ䚹ಙྕ䛾ො࢙䛾኱䛝䛥䛾㐪䛔䚸Z䛸ETmiss䛾䝞䝷䞁䝇䜢฼⏝䚹
ttbar䛾䛾ᢚไ䝆䜵䝑䝖䜔䝭䝳䞊䜸䞁䛾䜶䝛䝹䜼䞊MET஦㇟䜢ᢚไ䚹ᐃ⢭ᗘ䛻㉳ᅉ䛩䜛High

CiRfSE WS7஦㇟㑅ู㔜䛔ᮍⓎぢඹ㬆≧ែ䛾᥈⣴䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯ䛾᥈⣴* ௨㝆䚸䛣䛾஦㇟㑅ู䜢඲䛶せồ䛥䜜䛯㡿ᇦ䜢ಙྕ㡿ᇦ䛸࿧䜆䚹

24th Jan. 17

CiRfSE WS8

ZZ/WZ background

PDF uncertainty

ZZ⫼ᬒ஦㇟ಙྕ䛸䜋䜌ྠ䛨㐠ືᏛⓗᛶ㉁䜢ᣢ䛴䛯䜑䚸ಙྕ䛸䛾ศ㞳䚸⫼ᬒ஦㇟ホ౯ඹ䛻㞴䛧䛔䚹⌧᫬Ⅼ䛷䛿MC䛷ホ౯䛧䚸⌮ㄽⓗㄗᕪ䜢⣔⤫ㄗᕪ䛸䛧䛶୚䛘䛯䚹

QCD uncertainty䝕䞊䝍䜢⏝䛔䛯ホ౯ἲ䛻䛴䛔䛶ㄪᰝ୰䚹

WZ⫼ᬒ஦㇟
WZ஦㇟䛜㇏ᐩ䛻䛺䜛䝁䞁䝖䝻䞊䝹㡿ᇦ(3l-CR)䜢ᐃ⩏䚹ಙྕ㡿ᇦ䛻+1 lepton䝁䞁䝖䝻䞊䝹㡿ᇦ䛷MC䛜䝕䞊䝍䛻ྜ䛖䜘䛖
䛻Scale Factor䜢ィ⟬䚹

SF= 1.25 㼼 0.04 (stat) 㼼 0.05 (syst)

24th Jan. 17

CiRfSE WS

9WW/tt/Z→ττ background䛣䜜䜙䛾⫼ᬒ஦㇟䛿ྠ䛨䝣䝺䞊䝞䞊䛷䛺䛔䝺䝥䝖䞁ᑐ䛻䜒ᔂቯ䛩䜛䛣䛸䛜ྍ⬟→⫼⫼ᬒ஦㇟䛾ホ౯䛾䛯䜑䛻eμ-CR䜢ᐃ⩏䚹eμ-CR䛻ᑐ䛧䛶ಙྕ㡿ᇦ䛸ྠᵝ䛾஦㇟㑅ู䜢⾜䛔䚸ୗグ䛾ᘧ䛷ಙྕ㡿ᇦ䛻䛚䛡䜛⫼ᬒ஦㇟䛾ぢ✚䜒䜚䜢⾜䛖䚹‫א‬ൌ

eμ-CR : Z mass and MET > 90 GeV

24th Jan. 17

ܰ௓՜௘௘
ܰ௓՜ఓఓ

MC䛸䝕䞊䝍䛾ε䛾㐪䛔8%䜢⣔⤫ㄗᕪ䛸䛧䛯䚹⌧ẁ㝵䛷䛿normalization䛾䜏䛣䛾᪉ἲ䛷㐺⏝䚹

CiRfSE WS

10

Z+jets background䐟䐟ABCD method䜢⏝䛔䛶䝕䞊䝍䜢⏝䛔䛯ホ౯䜢⾜䛳䛯䚹

ABCD method• Sideband region 䜢䝁䞁䝖䝻䞊䝹㡿ᇦ䛸䛧䛶ᐃ⩏䚹• Correlation䛾ᑠ䛥䛔dΦ(Z, MET)䛸Frac. pt diff.䜢ኚᩘ䛸䛧䛶㑅ᐃ䚹• ᭱⤊ⓗ䛻䛿ྛ䝁䞁䝖䝻䞊䝹㡿ᇦ䛻஦㇟㑅ู䜢䛛䛡䚸ୗグ䛾ᘧ䛷SR䜈䛾ᐤ୚䜢ぢ✚䜒䜛䚹

24th Jan. 17

CiRfSE WS

11Z+jets background䐠䐠Region B, D䛿஦㇟㑅ูᚋ䛻䜲䝧䞁䝖䛜䛺䛟䛺䛳䛶䛧䜎䛖䛯䜑䚸Z massrequirement䛾䜏せồ䛧䚸NB/ND䜢ィ⟬䛧䛯䚹஦㇟㑅ู䛾㐪䛔䛜⏕䜐NB/ND䛾㐪䛔䜢⣔⤫ㄗᕪ䛸䛩䜛䚹ಙྕ㡿ᇦ䛾MC䛸ABCD
method䛻䜘䜚ぢ✚䜒䜙䜜䛯MC䛾ಙྕ㡿ᇦ䛾ᕪ䜢⣔⤫ㄗᕪ䛸䛧䛶ホ౯䚹඲⣔⤫ㄗᕪ䛿60%⛬ᗘ䚹⌧ẁ㝵䛷䛿⤫ィ㔞䛜ᑡ䛺䛔䛯䜑䚸MC䛾ศᕸ䜢⏝䛔䛶䚸normalization䛾䜏䛣䛾᪉ἲ䛷㐺⏝䚹

24th Jan. 17

CiRfSE WS

12

Result (㔜㔜䛔ᮍⓎぢඹ㬆≧ែ᥈⣴)ᶆ‽ᶍᆺ䛛䜙䛾ඃ఩䛺䛪䜜䛿ほ 䛥䜜䛺䛛䛳䛯䚹
ᶓ᪉ྥ㉁㔞䜢㆑ูኚᩘ䛸䛧䛶䚸㔜䛔䝠䝑䜾䝇⢏Ꮚ䛾⏕ᡂ᩿㠃✚㽢ᔂቯศᒱẚ䛻ᑐ䛧䛶ୖ㝈್䜢୚䛘䛯䚹
䜎䛯䚸Bulk RS graviton 䛻ᑐ䛧䛶mG<1.03 TeV (observed) @ 95 % C.L.䜢Რ༷䛧䛯䚹

24th Jan. 17

CiRfSE WS

13Result (䝠䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯ)ᶆᶆ‽ᶍᆺ䛛䜙䛾ඃ఩䛺䛪䜜䛿ほ䜜䛺䛛䛳䛯䚹䛥ᶓ᪉ྥᾘኻ䜶䝛䝹䜼䞊䜢㆑ูኚᩘ䛸䛧䛶䚸䝠䝑䜾䝇⢏Ꮚ䛾㠀ྍどᔂቯ䛾ᔂቯศᒱẚ䛻ᑐ䛧䛶ୖ㝈್䜢୚䛘䛯䚹
ZH⏕ᡂ᩿㠃✚䜢ᶆ‽⌮ㄽ䛾ணゝ䛸௬ᐃ䛩䜜䜀䚸ୖ㝈್䛿98% observed(65% expected)@95% CL䛸୚䛘䜙䜜䜛䚹

24th Jan. 17

CiRfSE WS14䜎䛸䜑㔜ᚰ⣔䜶䝛䝹䜼䞊13TeV䛻䛚䛔䛶ATLAS᳨ฟჾ䛷ྲྀᚓ䛥䜜䛯13 /fb䛾䝕䞊䝍䜢⏝䛔䛶Z+invisible particle䛻䜘䜛᪂≀⌮᥈⣴䜢⾜䛳䛯䚹⤖ᯝ䛸䛧䛶䚸ᶆ‽ᶍᆺ䛛䜙䛾ඃ఩䛺䛪䜜䛿ほ䛯䚹䛥䜜䛺䛛䛳㔜䛔ZZඹ㬆≧ែ᥈⣴䛷䛿䚸RS-graviton䛻ᑐ䛧䛶1.03 TeV௨ୗ䛾㉁㔞㡿ᇦ䜢Რ༷䛧䛯䚹䝠䝑䜾䝇⢏Ꮚ䛾㠀ྍどᔂቯ䛻ᑐ䛧䛶䛿䚸BR(H→inv.) <98% (obs), 65%(exp) @ 95% CL.䛾ไ㝈䜢୚䛘䛯䚹௒ᚋ䛿⫼ᬒ஦㇟䛾ホ౯᪉ἲ䛾ᨵၿ䛻ྲྀ䜚⤌䜐䚹≉䛻䚸
MET䝔䞊䝹䛷ಙྕ䛜⌧䜜䜛䝠䝑䜾䝇⢏Ꮚ䛾㠀ྍどᔂቯ䛷䛿⫼ᬒ஦㇟䛾䝕䞊䝍䜢⏝䛔䛯ホ౯䛜㔜せ䚹
24th Jan. 17

CiRfSE WS

15

Backup slides
24th Jan. 17

CiRfSE WS

16

Electron channel

22th Jul. 16* ZPT reweighting applied

HZZ weekly

Electron channel
ZPT/MTZZ

17* ZPT reweighting applied
ZPT/MT

Jets > 100 GeV

Jets > 25 GeV

22th Jul. 16

HZZ weekly

18

Muon channel

22th Jul. 16* ZPT reweighting applied

HZZ weekly

Muon channel
ZPT/MTZZ

19* ZPT reweighting applied
ZPT/MT

Jets > 100 GeV

Jets > 25 GeV

22th Jul. 16HZZ weekly20

WZ pair production
Measurement of the WZ boson pair production
cross section in pp collisions at sqrt(s) = 13 TeV
with the ATLAS detector. Phys. Lett. B 762(2016) 1
 lvll channel䜢౑⏝䚹Observed : 63.2 㼼 3.2 (stat.) 㼼 2.6 (sys.) 㼼1.5 (lumi) fb
Expected : 53.4 fb
Powheg+Pythia䜢౑⏝䚹

24th Jan. 17CiRfSE WS21

ZZ pair production
Measurement of the ZZ Production Cross
Section in pp Collisions at √ s = 13 TeV with theATLAS Detector : arXiv:1512.05314v2 [hep-ex]

24th Jan. 17

CiRfSE WS22

ABCD method䝁䝁䝸䝺䞊䝅䝵䞁
Electron channel

Muon channel┦㛵ಀᩘ :-0.05 (Electron channel)
0.006 (Muon channel)
24th Jan. 17

CiRfSE WS

23䝠䝑䜾䝇㠀ྍどᔂቯ/ᬯᬯ㯮≀㉁ᑐ⏕ᡂ䛾᥈⣴䐠䝠䝑䜾䝇⢏Ꮚ䛾㠀ྍどᔂቯᬯ㯮≀㉁ᑐ⏕ᡂ ᶓ᪉ྥᾘኻ䜶䝛䝹䜼䞊䜢㆑ูኚᩘ䛸䛧䛶䚸䝠䝑䜾䝇⢏Ꮚ䛾㠀ྍどᔂቯᔂቯศᒱẚ䛻ᑐ䛧䛶ୖ㝈್䜢୚䛘䛯䚹ZH⏕ᡂ᩿㠃✚䜢ᶆ‽⌮ㄽ䛾ணゝ䛸௬ᐃ䛩䜜䜀䚸ୖ㝈್䛿98% observed (65% expected)@95% CL䛸୚䛘䜙䜜䜛䚹 ྠಙྕ㡿ᇦ䛻䛚䛔䛶䚸ᬯ㯮≀㉁ᑐ⏕ᡂ䛾mediator mass, ᬯ㯮≀㉁䛾஧ḟඖ䛾఩┦✵㛫䛻䛚䛔䛶Რ༷㡿ᇦ䜢୚䛘䛯䚹

24th Jan. 17

CiRfSE WS24

3l-CR䜢
䜢⏝䛔䛯ZZ→llvv䛾
䛾ホ౯ᮏゎᯒ䛻䛚䛔䛶᭱䜒኱䛝䛔⫼ᬒ஦㇟䛷䛒䜛ZZ→llvv䛿MC䛷䛾ホ౯䛾䜏䚹ZZ→llvv• 䝕䞊䝍䛷ホ౯䛧䛯䛔䚹䝕䞊䝍䛾⤫ィ䛜ቑ䛘䜜䜀⌮ㄽㄗᕪ䜘䜚䜒㧗䛔⢭ᗘ䛷ZZ→llvv䛜
䛜ホ౯䛷䛝䜛ྍ⬟ᛶ䛜䛒䜛䚹

ZZ→llvv䛾ホ౯䛻3l-CR䛿౑⏝䛷䛝䛺䛔䛛䠛

WZ→lvll
ZZ→llvv

EventsEvents• WZ䛸ZZ䛾㐠ືᏛⓗศᕸ䛿㢮ఝ• 3rd lepton䜢MissingET䛾ィ⟬䛻ຍ䛘䜛䛣䛸䛷䚸ZZ→llvv䛾ホ౯䛻౑䛘䛺䛔䛛䚹νZlZ/γ*

WZ→lvll
MET 䛸䛧䛶ᢅ䛖

WZ→lvll
ZZ→llvv

ZZ/WZ

ZZ/WZllνW+/-

Recomputed ETmiss [GeV]lWZ䛸ZZ䛾ᑠ䛥䛺ᕪ䜢⿵ṇ䛩䜛 㛵ᩘ䜢ᑟධ䛩䜛ᚲせ䜰䝸

CiRfSE WS

24th Jan. 17lZ/γ*+ s channel

Recomputed mTZZ [GeV]ν253l-CR䜢䜢⏝䛔䛯ZZ→llvv䛾
䛾ホ౯
WZ䛸䛸ZZ䛾୺䛺㐪䛔䛿䚸ො࢙䜔ZPT䛾㐪䛔䛛䜙䛟䜛䠛

Recomputed PTZZ [GeV]ATLASWork in progress

ZZ→4l : 114 /fb
WZ : 11 /fb⿵ṇᚋ䛾ศᕸ

WZ→lvll
ZZ→llvv

WZ→lvll
ZZ→llvv

ZZ/WZ

Uncertainty [%]Z PT [GeV]

Events→ ⿵ṇ㛵ᩘ䛸䛧䛶PTZZ䛸ZPT䛾஧ḟඖศᕸ䜢⏝䛔䜛䚹

Recomputed ETmiss [GeV]

Recomputed ETmiss [GeV]⿵ṇᚋ䚸WZ䛜䜘䛟ZZ→llvv䜢෌⌧䛧䛶䛔䜛䚹௒ᚋ⣔⤫ㄗᕪ䛾ぢ✚䜒䜚䜔䚸䜘䜚Ⰻ䛔Correction㛵ᩘ䜢ㄪᰝ䚹Normalization䛾䜏⪃៖䛧䛯ሙྜ䚸~11 /fb௨ୖ䛷⌧⾜䜘䜚⢭ᗘ䛜Ⰻ䛟䛺䜛䚹䠄⌮ㄽ䛻䜘䜛⣔⤫ㄗᕪ10%䛸௬ᐃ䠅Integrated luminosity [/fb]24th Jan. 17CiRfSE WS26

㔜䛔ඹ㬆≧ែ䛾᥈⣴ᶓᶓ᪉ྥ㉁㔞䜢㆑ูኚᩘ䛸䛧䛶䚸㔜䛔䝠䝑䜾䝇⢏Ꮚཬ䜃RS-graviton䛾䛾⏕ᡂ᩿㠃✚㽢ᔂቯศᒱẚ䛻ᑐ䛧䛶ୖ㝈್䜢୚䛘䛯䚹RS graviton䛻ᑐ䛧䛶䚸mH < 1.03 TeV (observed) @ 95% CL 䜢Რ༷䛧䛯䚹24th Jan. 17

CiRfSE WS

27

3l-CR䜢
䜢⏝䛔䛯ZZ→llvv䛾
䛾ホ౯

24th Jan. 17

CiRfSE WS

28

Run-1䛸䛸䛾ẚ㍑
䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯRun-1 : 75% observed (63% expected) @95% CL
Run-2 : 98% observed (65% expected) @95% CL

ZZඹ㬆≧ែ䛾᥈⣴

24th Jan. 17

CiRfSE WS

29

CMS䛸
䛸䛾ẚ㍑
䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯCMS (13 /fb): 86% observed (70% expected) @95%
CL
ATLAS(13 /fb) : 98% observed (65% expected) @95%
CLCMS䛾
䛾஦㇟㑅ู

24th Jan. 17

CiRfSE WS

30

Period difference
Period A+B• 㐪䛔䛾ከ䛟䛿PeriodC+D䛷⏕䛨䛶䛔䜛䚹• Period A+B 䜘䜚Period C+D䛿䝟䜲䝹䜰䝑䝥䛜ከ䛔䚹• 䝟䜲䝹䜰䝑䝥䛾ᐤ୚䛾㐪䛔䠛

Period C+D

24th Jan. 17

CiRfSE WS

31ゎᯒ䛷౑⏝䛧䛯ಙྕ䛾䝃䞁䝥䝹㔜䛔䝠䝑䜾䝇⢏Ꮚᶆ‽ᶍᆺ䝠䝑䜾䝇⢏Ꮚ䛾Narrow Width Approximation(Width䛜᳨ฟჾ䜘䜚䜒ᑠ䛥䛔4.07 MeV)䜢౑⏝䚹
Width䛜᳨ฟჾศゎ⬟䜘䜚䜒኱䛝䛺ሙྜ䚸ggZZ䛸䛾ᖸ΅䜢⪃៖䛧䛺䛡䜜䜀䛺䜙䛺䛔䚹⌧᫬Ⅼ䛷䛭䛾ᐤ୚䜢⪃៖䛧䛯䝃䞁䝥䝹䛜Ꮡᅾ䛧䛺䛔䛯䜑䚸limit䛿4.07MeV䛾䝠䝑䜾䝇⢏Ꮚ䜢౑⏝䚹Bulk RS-Graviton

Randall-Sundrum Model (RS1)䛷ணゝ䚹ᶆ‽ᶍᆺ⢏Ꮚ䛸䛾⤖ྜᐃᩘ(k/MPl)= 1䜢௬ᐃ䚹䝠䝑䜾䝇⢏Ꮚ㠀ྍどᔂቯH→ZZ(*)→vvvv䛾ᔂቯศᒱẚ䠙䠍䜢௬ᐃ䛧䛯䜒䛾䜢౑⏝䚹

24th Jan. 17

CiRfSE WS32ゎᯒ䛷౑⏝䛧䛯ಙྕ䛾䝃䞁䝥䝹
Mono-Z searchᮍⓎぢmediator䛜ᶆ‽ᶍᆺ⢏Ꮚ䛸ᬯ㯮≀㉁䜢䛴䛺䛠䚸Simplifiedmodel䜢䝧䞊䝇䛻᥈⣴䜢⾜䛳䛯䚹䛣䛾䝰䝕䝹䛻䛚䛔䛶䛿䚸mDM, mmed, gq, gDM䛾4䝟䝷䝯䞊䝍䛜Ꮡᅾ䚹ಙྕ䝃䞁䝥䝹䛸䛧䛶䛿䚸Vector mediator, dirac dark matter, gq =0.25, gx = 1.0䜢௬ᐃ䛧䛯䝃䞁䝥䝹䜢౑⏝䚹(Run-1 di-jet䛾ゎᯒ䛛䜙)gq

24th Jan. 17gDM

CiRfSE WS33

䝎䞊䜽䝬䝍䞊ᑐ⏕ᡂ㐣⛬䛾᥈⣴ᬯ㯮≀㉁䛿┤᥋᥈⣴௨እ䛻䜒ᐇ㝿䛻⏕ᡂ䛩䜛᥈⣴᪉ἲ䛜䛒䜛䚹LHC䛻䛚䛔䛶䛿ᬯ㯮≀㉁ᑐ⏕ᡂ䛷᥈⣴䜢⾜䛳䛶䛔䜛䚹ᮍⓎぢmediator䛜ᶆ‽ᶍᆺ⢏Ꮚ䛸ᬯ㯮≀㉁䜢䛴
䛺䛠䚸Simplified model䜢䝧䞊䝇䛻᥈⣴䚹Z䛣䛾䝰䝕䝹䛻䛚䛔䛶䛿䚸
mDM, mmed, gq, gDM䛾4䝟䝷䝯䞊䝍䛜Ꮡᅾ䚹

24th Jan. 17

CiRfSE WSgq

Mediator ηgDM34