Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at √s = 7 and 8 TeV

Collapse authors list.
The, ATLASC, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, AbouZeid, OS, Abraham, NL, Abramowicz, H et al (show 70 more authors) , Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adamczyk, L, Adams, DL, Adelman, J, Adomeit, S, Adye, T, Affolder, AA, Agatonovic-Jovin, T, Agricola, J, Aguilar-Saavedra, JA, Ahlen, SP, Ahmadov, F, Aielli, G, Akerstedt, H, Åkesson, TPA, Akimov, AV, Alberghi, GL, Albert, J, Albrand, S, Alconada Verzini, MJ, Aleksa, M, Aleksandrov, IN, Alexa, C, Alexander, G, Alexopoulos, T, Alhroob, M, Aliev, M, Alimonti, G, Alison, J, Alkire, SP, Allbrooke, BMM, Allen, BW, Allport, PP, Aloisio, A, Alonso, A, Alonso, F, Alpigiani, C, Alstaty, M, Alvarez Gonzalez, B, Álvarez Piqueras, D, Alviggi, MG, Amadio, BT, Amako, K, Amaral Coutinho, Y, Amelung, C, Amidei, D, Amor Dos Santos, SP, Amorim, A, Amoroso, S, Amundsen, G, Anastopoulos, C, Ancu, LS, Andari, N, Andeen, T, Anders, CF, Anders, G, Anders, JK, Anderson, KJ, Andreazza, A, Andrei, V, Angelidakis, S, Angelozzi, I, Anger, P, Angerami, A, Anghinolfi, F, Anisenkov, AV and Anjos, N (2016) Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at √s = 7 and 8 TeV. Journal of High Energy Physics, 2016 (8).

	Text 1606.02266v2.pdf - Published version Download (2MB)
	Atom XML (admin) 2017-05-12T11:42:13Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T12:36:32Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T13:35:43Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T14:35:58Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T15:35:58Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T16:36:46Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T17:35:33Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T18:36:55Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T19:37:47Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T20:36:59Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T21:37:00Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T22:38:17Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-12T23:44:33Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T01:39:24Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T02:37:59Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T03:38:03Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T05:02:38Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T05:38:24Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T06:37:14Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T07:37:32Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T08:38:14Z.atom - Unspecified Download (0B)
	Atom XML (admin) 2017-05-13T09:37:09Z.atom - Unspecified Download (0B)

Abstract

© 2016, The Author(s).Combined ATLAS and CMS measurements of the Higgs boson production and decay rates, as well as constraints on its couplings to vector bosons and fermions, are presented. The combination is based on the analysis of five production processes, namely gluon fusion, vector boson fusion, and associated production with a W or a Z boson or a pair of top quarks, and of the six decay modes H → ZZ, W W, γγ, ττ, bb, and μμ. All results are reported assuming a value of 125.09 GeV for the Higgs boson mass, the result of the combined measurement by the ATLAS and CMS experiments. The analysis uses the CERN LHC proton-proton collision data recorded by the ATLAS and CMS experiments in 2011 and 2012, corresponding to integrated luminosities per experiment of approximately 5 fb−1 at √s = 7 TeV and 20 fb−1 at √s = 8 TeV. The Higgs boson production and decay rates measured by the two experiments are combined within the context of three generic parameterisations: two based on cross sections and branching fractions, and one on ratios of coupling modifiers. Several interpretations of the measurements with more model-dependent parameterisations are also given. The combined signal yield relative to the Standard Model prediction is measured to be 1.09 ± 0.11. The combined measurements lead to observed significances for the vector boson fusion production process and for the H → ττ decay of 5.4 and 5.5 standard deviations, respectively. The data are consistent with the Standard Model predictions for all parameterisations considered.

Item Type:	Article
Additional Information:	70 pages plus author lists + cover page (104 pages total), 32 figures, 22 tables, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2015-07/ and at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-15-002/
Uncontrolled Keywords:	Hadron-Hadron scattering (experiments), Higgs physics
Depositing User:	Symplectic Admin
Date Deposited:	03 Jan 2017 14:22
Last Modified:	19 Jan 2023 07:27
DOI:	10.1007/JHEP08(2016)045
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3004126