Search for Higgs and Z Boson Decays to J/ψγ and Υ(nS)γ with the ATLAS Detector

H. WAHLBERG Y ATLAS COLLABORATION

PHYSICAL REVIEW LETTERS

AMER PHYSICAL SOC

Lugar: New York; Año: 2015

0031-9007

A search for the decays of the Higgs and Z bosons to J=    and (nS)   (n = 1; 2; 3) is performedwith pp collision data samples corresponding to integrated luminosities of up to 20:3 fb􀀀1 collected atps = 8 TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess ofevents is observed above expected backgrounds and 95% CL upper limits are placed on the branchingfractions. In the J=    final state the limits are 1:5 10􀀀3 and 2:6 10􀀀6 for the Higgs and Z bosondecays, respectively, while in the (1S; 2S; 3S)   final states the limits are (1:3; 1:9; 1:3) 10􀀀3 and(3:4; 6:5; 5:4) 10􀀀6, respectively.