Search for a CP-odd Higgs boson decaying to Zh in pp collisions at with the ATLAS detector
© 2015. A search for a heavy, CP-odd Higgs boson, A, decaying into a Z boson and a 125 GeV Higgs boson, h, with the ATLAS detector at the LHC is presented. The search uses proton-proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb < sup > -1 < /sup > . Decays of CP-even h bosons to ττ or bb pairs with the Z boson decaying to electron or muon pairs are considered, as well as h→bb decays with the Z boson decaying to neutrinos. No evidence for the production of an A boson in these channels is found and the 95% confidence level upper limits derived for σ(gg→A)×BR(A→Zh)×BR(h→ff-) are 0.098-0.013 pb for f=τ and 0.57-0.014 pb for f=b in a range of m < inf > A < /inf > =220-1000GeV. The results are combined and interpreted in the context of two-Higgs-doublet models.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- ATLAS Collaboration
- Grant/Contract Number:
- AC02-06CH11357; SC0012704; AC02-76CH03000; AC02-05CH11231; AC03-76SF00515
- OSTI ID:
- 1197797
- Alternate ID(s):
- OSTI ID: 1208926; OSTI ID: 1222211; OSTI ID: 1407353
- Journal Information:
- Physics Letters B, Journal Name: Physics Letters B Vol. 744 Journal Issue: C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
Web of Science
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