Autores
Georges Aad, Tatevik Abajyan, Brad Abbott, Jalal Abdallah, S Abdel Khalek, Rosemarie 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, TPA Åkesson, G Akimoto, AV Akimov, MA Alam, J Albert, S Albrand, MJ Alconada Verzini, 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 Alvarez Gonzalez, MG Alviggi, K Amako, Y Amaral Coutinho, C Amelung, VV Ammosov, SP Amor Dos Santos, 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 Aperio Bella, R Apolle, G Arabidze, I Aracena, Y Arai, ATH Arce, S Arfaoui, JF Arguin, S Argyropoulos, E Arik, M Arik, AJ Armbruster, O Arnaez, V Arnal, O Arslan, A Artamonov, G Artoni, S Asai, N Asbah, S Ask, B Åsman, L Asquith, K Assamagan, R Astalos, A Astbury, M Atkinson, NB Atlay, B Auerbach, E Auge, K Augsten, M Aurousseau, G Avolio, D Axen, G Azuelos, Y Azuma, MA Baak, C Bacci, AM Bach, H Bachacou, K Bachas, M Backes, M Backhaus, J Backus Mayes, E Badescu, P Bagiacchi, P Bagnaia, Y Bai, DC Bailey, T Bain, JT Baines, OK Baker, S Baker, P Balek, F Balli, E Banas, Sw Banerjee, D Banfi, A Bangert, V Bansal, HS Bansil, L Barak, SP Baranov
Fecha de publicación
2013/10/7
Revista
Physics Letters B
Volumen
726
Número
1-3
Páginas
120-144
Editor
North-Holland
Descripción
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 J P= 0+ hypothesis is compared with alternative hypotheses using the Higgs boson decays H→ γ γ, H→ Z Z⁎→ 4 ℓ and H→ W W⁎→ ℓ ν ℓ ν, 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= 8 TeV. For the H→ Z Z⁎→ 4 ℓ decay mode the dataset corresponding to an integrated luminosity of 4.6 fb− 1 collected at s= 7 TeV is included. The data are compatible with the Standard Model J P= 0+ quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this Letter, namely some specific J P= 0−, 1+, 1−, 2+ models, are excluded at confidence levels above 97.8%. This exclusion holds …
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