CDF Electroweak Physics Public Results

CDF Run 2 Electroweak Public Results

For more information, contact the electroweak conveners, Mark Lancaster, Larry Nodulman

W Mass, W Width, BR

Analysis	Results	Data Sets	Documentation
NEW! W to pi gamma Oct 2009	BR<6.4e-5 95 percent	4.3 fb^-1
W mass Jan 2007	80413 ± 34 (stat.) ± 34 (syst.) MeV/c² = 80413 ± 48 MeV/c²	200 pb^-1	Phys. Rev. Lett. 99, 151801 (2007). (hep-ex/0707.0085) Phys. Rev. D 77, 112001 (2008). (hep-ex/0708.3642)
W mass combination eps gif Aug 2009	Tevatron Combination (updated for 2009 D0): 80420 ± 31 MeV/c² Tevatron+LEP Combination: 80399 ± 23 MeV/c²	0.2 CDF, 1.0 D0 fb^-1	FERMILAB-TM-2439-E
W mass Jun 2008	Plots (statistical error only) from the 2.3 fb^-1 analysis.	2.3 fb^-1	Public Plots
W width Feb 2007	$&Gamma$ _W = 2032 ± 45(stat.) ± 57(syst.) MeV = 2032 ± 73 MeV	350 pb^-1	PRL 100 071801 (2008) (hep-ex/0710.4112)

Diboson Production

Analysis	Results	Data Sets	Documentation
NEW! Z + &gamma production Sept 2009	&sigma(ppbar -> Z + &gamma) = 4.6 ± 0.5 pb \|h^Z₃\| <0.050, \|h^Z₄\| <0.0034 \|h^&gamma₃\| <0.051, \|h^&gamma₄\| <0.0034	1.1 fb^-1 (ee) and 2.0 fb^-1(μμ) and MET	Public note (coming soon)
NEW! four lepton ZZ August 2009	sigma ZZ =1.56 +0.80 -0.63 ± 0.25 pb	4.8 fb^-1	public note
NEW! jet jet lepton met jet jet mass / matrix element August 2009	sigma WW/WZ+X =14.4 ± 3.1 ± 2.2 pb / sigma WW/WZ+X =17.7 ± 3.9 pb	3.9 fb^-1 / 2.7 fb^-1	coming soon
NEW! jet jet met June 2009	sigma VV+X =18.6 ± 2.8 ± 2.4 ± 1.1 pb	3.5 fb^-1	arXiv:0905.4714
PR Plot Showing W/Z/Top/Diboson/Higgs Xsec measurements and limits June 2009		Upto 3.6 fb^-1	Plots: .eps , .gif , .C
NEW! WW->ll&nu&nu now with TGC limits Apr (Jul) 2009	&sigma(ppbar -> WW) = 12.1 ± 0.9 +1.6 -1.4 pb	3.6 fb^-1	Public Note
WZ(->3l, l=e,&mu) cross section Aug 2007	&sigma(ppbar -> WZ) = 4.3 + 1.4 - 1.1 pb	1.9 fb^-1	PRL 98, 161801 (hep-ex/0702027) Describing 1.1 fb^-1 observation
WZ Anomalous Triple Gauge Couplings (lll&nu channel) Jan 2008	&Lambda = 2.0 -0.13 < &lambda < 0.14 -0.13 < &Delta g < 0.23 -0.76 < &Delta &kappa < 1.18	1.9 fb^-1	Public Note (coming soon)
WZ Anomalous Triple Gauge Couplings (lljj channel) Sep 2008	&Lambda = 2.0 -0.16 < &lambda < 0.17 -0.20 < &Delta g < 0.29 -1.01 < &Delta &kappa < 1.27	1.9 fb^-1	Public Note (coming soon)
ZZ Anomalous Triple Gauge Couplings Jun 2008	&Lambda = 1.2 TeV -0.12 < f₄^Z < 0.12 -0.13 < f₅^Z < 0.12 -0.10 < f₄^&gamma < 0.10 -0.11 < f₅^&gamma < 0.11	1.9 fb^-1	Public Note (coming soon)
First measurement of ZZ production Jan 2008	&sigma(ppbar -> ZZ) = 1.4 + 0.7 - 0.6 pb (4.4 &sigma significance)	1.9 fb^-1	hep-ex/0801.4806 Phys. Rev. Lett. 100, 201801 (2008)
Search for WW/WZ(->e/mu + 2 jets) Dec 2007	&sigma(ppbar -> WW+WZ)xBR = 1.47 ± 0.77(stat) ± 0.38(sys) pb &sigma(ppbar -> WW+WZ)xBR < 2.88 pb @95% C.L.	1.2 fb^-1	1.2 fb^-1
W(->l &nu) &gamma cross sections June 2007	&sigma(ppbar -> W + &gamma) = 18.0 ± 2.8 pb	1.1 fb^-1	Public note (coming soon)
WW(->ee / &mu &mu / e &mu) cross section March 2006	&sigma(ppbar -> WW) = 13.6 ± 2.3 (stat) ± 1.6 (syst) ± 1.2 (lum) pb	825 pb^-1	hep-ex/0605066 (Moriond Proceedings)

W/Z Cross Sections and Asymmetries

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Analysis	Results	Data Sets	Documentation
NEW! Afb(Z/&gamma*->ee) Oct 2009	Will eventualy extract couplings	4.1 fb^-1	Public Note
NEW! d&sigma(Z/&gamma*->ee)/dy May 2009	Spectrum consistent with (N)NLO calculation + (N)NLO PDFs	2.1 fb^-1	Public Note Systematics Discussion hep-ex/0908.3914
W(->e nu) charge asymmetry Jan 2009 NEW! Comparison between CDF and D0 charge asymmetries Jan 2010	W boson charge asymmetry vs W rapidity	1.0 fb^-1	PRL 102, 181801
Z-Boson Invisible Width Aug 2007	&Gamma(Z -> invisible) = 466 ± 42 MeV	1.0 fb^-1	None
Z(->ee) forward-backward asymmetry	A_FB consistent with SM (chi2/DOF 10.2/12)	364 pb^-1	Public Note
Z(->tau_h tau_e) cross section	&sigma(ppbar->Z) = 264 ± 23 (stat) ± 14 (sys) ± 15 (lum)	350 pb^-1	PRD 75, 092004
W cross section with forward electrons	&sigma(ppbar -> W) = 2.796 ± 0.013 (stat) + 0.095 - 0.090 (syst) ± 0.168 (lum) nb	223 pb^-1	PRL 98, 251801 (hep-ex/0702037)

Previous Results

Analysis	Results	Data Sets	Documentation
WW/WZ(->e/mu + 2 jets) cross section Jan 2007	&sigma(ppbar -> WW+WZ) < 36 pb -0.51 < &Delta &kappa < 0.44 -0.28 < &lambda < 0.28 AC Limits obtained from combined analysis with W&gamma	350 pb^-1	Phys. Rev. D 76, 111103 (2007)
W(->e/&mu &nu), Z(->ee or &mu&mu) + &gamma cross sections	&sigma(ppbar -> W + &gamma) = 18.1 ± 3.1 pb &sigma(ppbar -> Z + &gamma) = 4.6 ± 0.5 ± 0.2 pb	200 pb^-1	PRL 94, 041803 (hep-ex/0410008)
WW(->ee/mu mu/e mu) cross section and WW(->e/mu + track) cross section	&sigma(ppbar -> WW) = 14.6 + 5.8 - 5.1 (stat) + 1.8 -3.0 (syst) ± 0.9 (lum) pb	200 pb^-1	PRL 94, 211801 (hep-ex/0501050)
WZ/ZZ(->2l/3l/4l, l=e,mu) search	&sigma(ppbar -> WZ+ZZ) < 15.2 pb	200 pb^-1	PRD 71, 091105 (hep-ex/0501021)
Z(->mu mu) cross section	&sigma(ppbar->Z) = 261.2 ± 2.7 (stat) + 5.8 - 6.9 (sys) ± 15.1 (lum) pb	337 pb^-1	None
W(->e nu) lepton charge asymmetry	Lepton charge asymmetry vs \|eta\| (<2.5) for 2 ET bins (25-35 GeV, 35-45 GeV)	170 pb^-1	PRD 71, 051104 (hep-ex/0501023)
Z(->ee) forward-backward asymmetry	A_FB consistent with SM (chi2/DOF 15.7/15)	72 pb^-1	PRD 71, 052002 (hep-ex/0411059)
W(->e/mu nu), Z(->ee or mu mu) cross sections	R = &sigma(ppbar->W)/&sigma(ppbar->Z) = 10.84 ± 0.15 ± 0.14 &Gamma(W) = 2092 ± 42 MeV \|Vcs\| = 0.976 ± 0.030	72 pb^-1	J. Phys. G: Nucl. Part. Phys. 34 (2007) 2457-2544 (hep-ex/0508029) PRL 94, 091803 (hep-ex/0406078)
W(->tau_h nu) cross section	&sigma(ppbar->W) = 2.62 ± 0.07 (stat) ± 0.21 (sys) ± 0.16 (lum) BR(W->tau nu)/BR(W->e nu) = 0.99 ± 0.04 (stat) ± 0.07 (sys)	72 pb^-1	Nucl. Phys. B: Proc. Suppl. 144, 323-332 (spires-hep/6099807)

Last updated Jan 15, 2009 by Mark Lancaster