Evidence for the Higgs boson decay to a Z boson and a photon at the LHC

The ATLAS collaboration; The CMS collaboration; A. Berthold; P. Czodrowski; N. Fritzsche; A. Hadef; T. Herrmann; T. Kresse; Wolfgang Mader; S. Morgenstern; A. Nag; J. E. Nitschke; F. Siegert; M. V. Stange; S. Todt; H. Torres; C. Wiel

doi:10.1103/PhysRevLett.132.021803

Evidence for the Higgs boson decay to a Z boson and a photon at the LHC

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

The ATLAS collaboration - , University of Bucharest, iThemba Labs, University of Pretoria, University of South Africa, University of Zululand, Cadi Ayyad University, NYU Abu Dhabi, University of Granada, CERN, University of California at Berkeley, University of Georgia (Tbilisi), Yeditepe University, Mohammed VI Polytechnic University (Author)
The CMS collaboration - (Author)
A. Berthold - , Chair of Experimental Particle Physics, Institute of Nuclear and Particle Physics, TUD Dresden University of Technology (Author)
P. Czodrowski - , CERN (Author)
N. Fritzsche - , Chair of Experimental Particle Physics, TUD Dresden University of Technology (Author)
A. Hadef - , Johannes Gutenberg University Mainz (Author)
T. Herrmann - , Chair of Particle Physics, TUD Dresden University of Technology (Author)
T. Kresse - , Chair of Experimental Particle Physics, Institute of Nuclear and Particle Physics, Chair of Particle Physics, TUD Dresden University of Technology (Author)
Wolfgang Mader - , Chair of Experimental Particle Physics, TUD Dresden University of Technology (Author)
S. Morgenstern - , CERN (Author)
A. Nag - , Chair of Particle Physics, TUD Dresden University of Technology (Author)
J. E. Nitschke - , Chair of Particle Physics, TUD Dresden University of Technology (Author)
F. Siegert - , Chair of Particle Physics, TUD Dresden University of Technology (Author)
M. V. Stange - , Institute of Nuclear and Particle Physics, Chair of Particle Physics, TUD Dresden University of Technology (Author)
S. Todt - , Chair of Particle Physics, TUD Dresden University of Technology (Author)
H. Torres - , Aix-Marseille Université, French National Centre for Scientific Research (CNRS) (Author)
C. Wiel - , Universidad de Buenos Aires (Author)

University of Oklahoma
University of Göttingen
Dortmund University of Technology
Brookhaven National Laboratory
Mohammed V University in Rabat
Tel Aviv University
Technion-Israel Institute of Technology
New York University
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London (KCL)
Laboratoire d'Annecy-le-Vieux de Physique des Particules LAPP
AGH University of Science and Technology
University of Toronto
Brandeis University
University of Manchester
Northern Illinois University
Istanbul University
Rutherford Appleton Laboratory
University of California at Santa Cruz
Institute for High Energy Physics
University of Pavia
Alexandru Ioan Cuza University of Iaşi
McGill University
Royal Holloway University of London
University of Science and Technology of China (USTC)
University of Rome Tor Vergata
University of Valencia
University of Hassan II Casablanca
Polish Academy of Sciences

Abstract

The first evidence for the Higgs boson decay to a Formula Presented boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around Formula Presented for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is Formula Presented times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.

Details

Original language	English
Article number	021803
Pages (from-to)	1-32
Number of pages	32
Journal	Physical review letters
Volume	132
Issue number	2
Publication status	Published - 12 Jan 2024
Peer-reviewed	Yes

External IDs

PubMed	38277607
ORCID	/0000-0001-6480-6079/work/173049558
ORCID	/0000-0003-0546-1634/work/173516677

Keywords

ASJC Scopus subject areas

General Physics and Astronomy