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Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector

Autores

Georges Aad, B Abbott, J Abdallah, Rosemarie Aben, Maris Abolins, OS AbouZeid, Halina Abramowicz, Henso Abreu, Ricardo Abreu, Yiming Abulaiti, Bobby Sami Acharya, Leszek Adamczyk, DL Adams, Jahred Adelman, Stefanie Adomeit, Tim Adye, AA Affolder, Tatjana Agatonovic-Jovin, Juan Anton Aguilar-Saavedra, SP Ahlen, Faig Ahmadov, Giulio Aielli, Henrik Akerstedt, TPA Åkesson, AV Akimov, Gian Luigi Alberghi, Justin Albert, Solveig Albrand, MJ Alconada Verzini, Martin Aleksa, IN Aleksandrov, Calin Alexa, Gideon Alexander, Theodoros Alexopoulos, Muhammad Alhroob, Gianluca Alimonti, Lion Alio, John Alison, Steven Pat Alkire, BMM Allbrooke, PP Allport, Alberto Aloisio, Alejandro Alonso, Francisco Alonso, Cristiano Alpigiani, A Altheimer, B Alvarez Gonzalez, D Álvarez Piqueras, MG Alviggi, Brian Thom Amadio, Katsuya Amako, Y Amaral Coutinho, Christoph Amelung, Dante Amidei, SP Amor Dos Santos, Antonio Amorim, Simone Amoroso, Nir Amram, Glenn Amundsen, Christos Anastopoulos, Lucian Ste Ancu, Nansi Andari, Timothy Andeen, CF Anders, Gabriel Anders, John Kenne Anders, KJ Anderson, Attilio Andreazza, V Andrei, Stylianos Angelidakis, Ivan Angelozzi, Philipp Anger, Aaron Angerami, Francis Anghinolfi, AV Anisenkov, Nuno Anjos, Alberto Annovi, Mario Antonelli, Alexey Antonov, Jaroslav Antos, Fabio Anulli, Masato Aoki, L Aperio Bella, Giorgi Arabidze, Yasuo Arai, Juan Pedro Araque, ATH Arce, FA Arduh, Jean-Franc Arguin, Spyridon Argyropoulos, Metin Arik, Aaron Jame Armbruster, Olivier Arnaez, Vanessa Arnal, Hannah Arnold, Miguel Arratia, Ozan Arslan, Andrei Artamonov, Giacomo Artoni, Shoji Asai, Nedaa Asbah, Adi Ashkenazi, B Åsman, L Asquith, K Assamagan, R Astalos, M Atkinson, NB Atlay, B Auerbach, K Augsten, M Aurousseau, G Avolio, B Axen, MK Ayoub, G Azuelos, MA Baak, AE Baas, C Bacci, H Bachacou, K Bachas, M Backes, M Backhaus, P Bagiacchi, P Bagnaia, Y Bai, T Bain, JT Baines, OK Baker, EM Baldin, P Balek, T Balestri, F Balli, E Banas, Sw Banerjee, AAE Bannoura, HS Bansil, L Barak, EL Barberio, D Barberis, M Barbero, T Barillari, M Barisonzi, T Barklow, N Barlow, SL Barnes, BM Barnett, RM Barnett, Z Barnovska, A Baroncelli, G Barone

Fecha de publicación

2015/10

Revista

The European Physical Journal C

Volumen

Número

Páginas

1-36

Editor

Springer Berlin Heidelberg

Descripción

Studies of the spin, parity and tensor couplings of the Higgs boson in the, and decay processes at the LHC are presented. The investigations are based on of pp collision data collected by the ATLAS experiment at TeV and TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers, is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9% confidence level. Using the and decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SM tensor couplings …