Accès ouvert
2010
article
OpenAlex
T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei et autres
We present a measurement of the $WW+WZ$ production cross section observed in a final state consisting of an identified electron or muon, two jets, and missing transverse energy. The measurement is carried out in a data sample corresponding to up to $4.6\text{ …
fi, es, us, sk, jp, ru, gb, it, tw, ch
(code pays fourni par la source)
Accès ouvert
2005
article
OpenAlex
D. Acosta, A. A. Affolder, M. G. Albrow, D. Ambrose et autres
We have measured the azimuthal angular correlation of $b\overline{b}$ production, using $86.5\text{ }\text{ }\mathrm{p}{\mathrm{b}}^{\ensuremath{-}1}$ of data collected by Collider Detector at Fermilab (CDF) in $p\overline{p}$ collisions at $\sqrt{s}=1.8\text{ }\text{ }\mathrm{TeV}$ during 1994--1995. In high-energy $p\overline{p}$ collisions, such as at the Tevatron, $b\overline{b}$ …
us, tw, jp, ru, gb, it, ch
(code pays fourni par la source)
2002
article
OpenAlex
D. Acosta, A. A. Affolder, H. Akimoto, M. Albrow et autres
We report on measurements of the branching ratios of the decays ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\chi}}_{c1}^{0}{(1P)K}^{+}$ and ${B}^{+}\ensuremath{\rightarrow}J/\ensuremath{\psi}{K}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}},$ where ${\ensuremath{\chi}}_{c1}^{0}(1P)\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\gamma}$ and $J/\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\psi}}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ in $p\overline{p}$ collisions at $\sqrt{s}=1.8\mathrm{TeV}.$ Using a data sample from an integrated luminosity of $110{\mathrm{pb}}^{\ensuremath{-}1}$ collected by the Collider Detector at Fermilab we measure …
us, jp, tw, ru, gb, it, ch
(code pays fourni par la source)
Accès ouvert
2002
article
OpenAlex
D. Acosta, A. A. Affolder, H. Akimoto, M. Albrow et autres
We present an improved measurement of b-meson lifetimes using fully reconstructed B-decays produced in $p\overline{p}$ collisions at $\sqrt{s}=1.8 \mathrm{TeV},$ using $114 {\mathrm{pb}}^{\ensuremath{-}1}$ of data collected at the Collider Detector at Fermilab. We obtain $\ensuremath{\tau}{(B}^{+})=1.636\ifmmode\pm\else\textpm\fi{}0.058(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.025(\mathrm{syst}) \mathrm{ps},$ $\ensuremath{\tau}{(B}^{0})=1.497\ifmmode\pm\else\textpm\fi{}0.073(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.032(\mathrm{syst}) \mathrm{ps}$ and for the lifetime ratio …
us, jp, tw, ru, gb, it, ch
(code pays fourni par la source)
Accès ouvert
2001
article
OpenAlex
A. A. Affolder, H. Akimoto, A. Akopian, M. Albrow et autres
This report describes a measurement of the top quark mass in $p\overline{p}$ collisions at a center of mass energy of 1.8 TeV. The data sample was collected with the CDF detector during the 1992--1995 collider run at the Fermilab Tevatron, and corresponds …
us, jp, it, tw, gb, ru, ch, ca
(code pays fourni par la source)
Accès ouvert
2000
article
OpenAlex
T. Affolder, H. Akimoto, A. Akopian, M. G. Albrow et autres
This Letter describes a direct measurement of the $W$ boson total decay width, ${\ensuremath{\Gamma}}_{W}$, using the Collider Detector at Fermilab. The measurement uses an integrated luminosity of $90{\mathrm{pb}}^{\ensuremath{-}1}$, collected during the 1994--1995 run of the Fermilab Tevatron $p\overline{p}$ collider. The width is …
es, it, us, tw, ru, ch
(code pays fourni par la source)
Accès ouvert
2000
article
OpenAlex
A. A. Affolder, H. Akimoto, A. Akopian, M. G. Albrow et autres
Top quark production offers the unique opportunity to search for a charged Higgs boson ${(H}^{\ifmmode\pm\else\textpm\fi{}}),$ as the contribution from $\stackrel{\ensuremath{\rightarrow}}{t}{H}^{+}\stackrel{\ensuremath{\rightarrow}}{b}{\ensuremath{\tau}}^{+}\ensuremath{\nu}b$ can be large in extensions of the standard model. We use results from a search for top quark pair production by the …
us, jp, it, tw, gb, fr, ru, ch, cz, ar, br, cn, no, ec, ca
(code pays fourni par la source)
Accès ouvert
2000
article
OpenAlex
A. A. Affolder, H. Akimoto, A. Akopian, M. Albrow et autres
We present a measurement of the cross section for production of two or more jets as a function of dijet mass, based on an integrated luminosity of 86 ${\mathrm{pb}}^{\ensuremath{-}1}$ collected with the Collider Detector at Fermilab. Our dijet mass spectrum is described …
tw
(code pays fourni par la source)
Accès ouvert
2000
article
OpenAlex
T. Affolder, H. Akimoto, A. Akopian, M. Albrow et autres
We present the results of a search for pair production of a fourth-generation charge $\ensuremath{-}\frac{1}{3}$ quark $({b}^{\ensuremath{'}})$ in $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8\mathrm{TeV}$ $p\overline{p}$ collisions using $88{\mathrm{pb}}^{\ensuremath{-}1}$ of data obtained with the Collider Detector at Fermilab. We assume that both quarks decay via the flavor-changing neutral …
us, jp, it, tw, gb, ru, ch, ca
(code pays fourni par la source)
1999
article
OpenAlex
F. Abe, H. Akimoto, A. Akopian, M. Albrow et autres
We present a measurement of the mass difference $\ensuremath{\Delta}{m}_{d}$ of the two ${B}_{d}^{0}$ mass eigenstates. We use a flavor tagging method based on the lepton charge, in a sample of events with two muons at low transverse momentum. The sample corresponds to …
jp, us, it, tw, ch, ca
(code pays fourni par la source)
Accès ouvert
1998
article
OpenAlex
F. Abe, H. Akimoto, A. Akopian, M. Albrow et autres
We observe hadronic $W$ decays in $t\overline{t}\ensuremath{\rightarrow}W(\ensuremath{\rightarrow}\ensuremath{\ell}\ensuremath{\nu})+\ensuremath{\ge}4$ jet events using a $109{\mathrm{pb}}^{\ensuremath{-}1}$ data sample of $p\overline{p}$ collisions at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8\mathrm{TeV}$ collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with $W$ decay …
jp, us, it, tw, ch
(code pays fourni par la source)
Accès ouvert
1996
article
OpenAlex
F. Abe, H. Akimoto, A. Akopian, M. Albrow et autres
We report a measurement of the ratios of the decay rates of the ${B}^{+}$, ${B}^{0}$, and ${B}_{s}^{0}$ mesons into exclusive final states containing a $\frac{J}{\ensuremath{\psi}}$ meson. The final states were selected from 19.6 pb-1 of $p\overline{p}$ collisions recorded by the Collider Detector …
jp, us, it, tw, ca
(code pays fourni par la source)