CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Evidence for the spin-0 nature of the Higgs boson using ATLAS data
Authors
G Aad
T Abajyan
+98 more
B Abbott
J Abdallah
S AbdelKhalek
O Abdinov
R Aben
B Abi
M Abolins
OS AbouZeid
H Abramowicz
H Abreu
Y Abulaiti
BS Acharya
L Adamczyk
DL Adams
TN Addy
J Adelman
S Adomeit
T Adye
S Aefsky
JA Aguilar-Saavedra
M Agustoni
SP Ahlen
A Ahmad
M Ahsan
G Aielli
G Akimoto
AV Akimov
MA Alam
J Albert
S Albrand
MJ AlconadaVerzini
M Aleksa
IN Aleksandrov
F Alessandria
C Alexa
G Alexander
G Alexandre
T Alexopoulos
M Alhroob
M Aliev
G Alimonti
L Alio
J Alison
BMM Allbrooke
LJ Allison
PP Allport
SE Allwood-Spiers
J Almond
A Aloisio
R Alon
A Alonso
F Alonso
A Altheimer
B AlvarezGonzalez
MG Alviggi
K Amako
Y AmaralCoutinho
C Amelung
VV Ammosov
SP AmorDosSantos
A Amorim
S Amoroso
N Amram
C Anastopoulos
LS Ancu
N Andari
T Andeen
CF Anders
G Anders
KJ Anderson
A Andreazza
V Andrei
XS Anduaga
S Angelidakis
P Anger
A Angerami
F Anghinolfi
AV Anisenkov
N Anjos
A Annovi
A Antonaki
M Antonelli
A Antonov
J Antos
F Anulli
M Aoki
L AperioBella
R Apolle
G Arabidze
I Aracena
Y Arai
ATH Arce
S Arfaoui
JF Arguin
S Argyropoulos
E Arik
M Arik
TPA Åkesson
Publication date
30 August 2013
Publisher
eScholarship, University of California
Abstract
Studies of the spin and parity quantum numbers of the Higgs boson are presented, based on proton-proton collision data collected by the ATLAS experiment at the LHC. The Standard Model spin-parity JP=0+ hypothesis is compared with alternative hypotheses using the Higgs boson decays H→γγ, H→ZZ*→4ℓ and H→WW*→ℓνℓν, as well as the combination of these channels. The analysed dataset corresponds to an integrated luminosity of 20.7 fb-1 collected at a centre-of-mass energy of s=8TeV. For the H→ZZ*→4ℓ decay mode the dataset corresponding to an integrated luminosity of 4.6 fb-1 collected at s=7TeV is included. The data are compatible with the Standard Model JP=0+ quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this Letter, namely some specific JP=0-, 1+, 1-, 2+ models, are excluded at confidence levels above 97.8%. This exclusion holds independently of the assumptions on the coupling strengths to the Standard Model particles and in the case of the JP=2+ model, of the relative fractions of gluon-fusion and quark-antiquark production of the spin-2 particle. The data thus provide evidence for the spin-0 nature of the Higgs boson, with positive parity being strongly preferred. © 2013 CERN
Similar works
Full text
Open in the Core reader
Download PDF
Available Versions
Sustaining member
eScholarship - University of California
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:escholarship.org:ark:/1303...
Last time updated on 25/12/2021