Standard Model Higgs Boson Combination at the Tevatron
- LBL, Berkeley
We present the recent results from combinations of searches for a standard model (SM) Higgs boson ($$H$$) by the CDF and D0 experiments at the Tevatron $$p\bar p$$ collider at $$\sqrt{s}=1.96$$ TeV. The data correspond to an integrated total luminosity of 8.2 (CDF) and 8.6 (D0) fb$$^{-1}$$. Compared to the previous Tevatron Higgs boson search combination more data have been added, additional channels have been added, and some previously used channels have been reanalyzed to gain sensitivity. No excess is observed above background expectation, and set 95% C.L. upper limits (median expected) on Higgs boson production at factors of 1.17 (1.16), 1.71 (1.16), and 0.48(0.57) times the SM predictions for Higgs bosons of mass $$m_H$$=115, 140, and 165 GeV/c$^2$, respectively. We exclude a standard-model Higgs boson in the mass range 156--177 GeV/c$^2$ at the 95% C.L, with an expected exclusion region 148--180 GeV/c$^2$. The absence of a Higgs boson signal also constrains some new physics such as $$4^{th}$$ generation models and other exotic models.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CDF; D0
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1438599
- Report Number(s):
- FERMILAB-CONF-12-396-E; arXiv:1201.5107; 1085652
- Journal Information:
- EPJ Web Conf., Vol. 28; Conference: Hadron Collider Physics Symposium, Paris, France, 11/14-11/18/2011
- Country of Publication:
- United States
- Language:
- English
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