Search for long-lived doubly charged Higgs bosons in p(p)over-bar collisions at root s=1.96 TeV

We present a search for long-lived doubly charged Higgs bosons (H+/-+/-), with signatures of high ionization energy loss and muonlike penetration. We use 292 pb(-1) of data collected in p (p) over bar collisions at root s=1.96 TeV by the CDF II detector at the Fermilab Tevatron. Observing no evidence of long-lived doubly charged particle production, we exclude H-L(+/-+/-) and H-R(+/-+/-) bosons with masses below 133 GeV/c(2) and 109 GeV/c(2), respectively. In the degenerate case we exclude H+/-+/- mass below 146 GeV/c(2). All limits are quoted at the 95% confidence level

Measurement of the W+W- Production Cross Section in ppbar Collisions at sqrt(s)=1.96 TeV using Dilepton Events

We present a measurement of the W+W- production cross section using 184/pb of ppbar collisions at a center-of-mass energy of 1.96 TeV collected with the Collider Detector at Fermilab. Using the dilepton decay channel W+W- -> l+l-vvbar, where the charged leptons can be either electrons or muons, we find 17 candidate events compared to an expected background of 5.0+2.2-0.8 events. The resulting W+W- production cross section measurement of sigma(ppbar -> W+W-) = 14.6 +5.8 -5.1 (stat) +1.8 -3.0 (syst) +-0.9 (lum) pb agrees well with the Standard Model expectation.Comment: 8 pages, 2 figures, 2 tables. To be submitted to Physical Review Letter

Evaluation of a Long-Range Joint Acoustic Navigation / Thermometry System

The conceptual architecture of an ocean acoustic system with the dual uses of submerged platform navigation and large-scale temperature measurement has been developed, and is described here. Swept FM signals would be used to synthesize short-duration pulses. A 50-Hz bandwidth is to be used, within the frequency range of 100 to 200 Hz. The potential performance of the system is discussed here. Navigation performance is compared with that of the currently used 1.6-Hz bandwidth RAFOS system. Thermometry performance can be evaluated using experiences with prior system

Deep seafloor arrivals: An unexplained set of arrivals in long-range ocean acoustic propagation

The article of record may be found at http://dx.doi.org/10.1121/1.3158826The LOAPEX source deployments, the moored DVLA receiver deployments, and some post-cruise data reduction and analysis were funded by the Office of Naval Research under Award Nos. N00014-1403-1-0181, N00014-03-1-0182, and N00014-06-1-0222. Additional post-cruise analysis support was provided to RAS through the Edward W. and Betty J. Scripps Chair for Excellence in Oceanography. The OBS/Hs used in the experiment were provided by Scripps Institution of Oceanography under the U.S. National Ocean Bottom Seismic Instrumentation Pool, SIO-OBSIP—http://www.obsip.org. To cover the costs of the OBS/H deployments funds were paid to SIO- OBSIP from the National Science Foundation and from the Woods Hole Oceanographic Institution Deep Ocean Exploration Institute. The OBS/H data are archived at the IRIS,Incorporated Research Institutions for Seismology. Data Management Center.N00014-1403-1-0181N00014-03-1-0182N00014-06-1-022

First measurements of inclusive W and Z cross sections from Run II of the Fermilab Tevatron collider

We report the first measurements of inclusive W and Z cross sections times leptonic branching ratios for pp¯ collisions at s√=1.96  TeV, based on their decays to electrons and muons. The data correspond to an integrated luminosity of 72  pb−1 recorded with the CDF detector at the Fermilab Tevatron. We test e-μ universality in W decays, and we measure the ratio of leptonic W and Z rates from which the leptonic branching fraction B(W→ℓν) can be extracted as well as an indirect value for the total width of the W and the Cabibbo-Kobayashi-Maskawa matrix element V c

Search for long-lived doubly charged Higgs bosons in pp- collisions at √s=1.96TeV

We present a search for long-lived doubly charged Higgs bosons (H±±), with signatures of high ionization energy loss and muonlike penetration. We use 292  pb−1 of data collected in pp¯ collisions at √s=1.96  TeV by the CDF II detector at the Fermilab Tevatron. Observing no evidence of long-lived doubly charged particle production, we exclude H±±L and H±±R bosons with masses below 133  GeV/c2 and 109  GeV/c2, respectively. In the degenerate case we exclude H±± mass below 146  GeV/c2. All limits are quoted at the 95% confidence level