Browsing by Author "Mackin, D."

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  • Aaltonen, T.; Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alvarez Gonzalez, B.; ... (American Physical Society, 2012)
    We report the combination of recent measurements of the helicity of the W boson from top quark decay by the CDF and D0 collaborations, based on data samples corresponding to integrated luminosities of $2.7-5.4\text{ ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We present a measurement of the ratio of events with correlated $t$ and $\bar{t}$ spins to the total number of $t\bar{t}$ events. This ratio $f$ is evaluated using a matrix-element-based approach in 729 $t\bar{t}$ candidate ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Aoki, M.; ... (American Physical Society, 2012)
    We present an improved determination of the total width of the top quark, $\Gamma_t$, using $5.4  \text{fb}^{−1}$ of integrated luminosity collected by the D0 Collaboration at the Tevatron $p\bar p$ Collider. The total ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We report an updated measurement of the $CP$-violating phase, $\phi^{J/\psi\phi}_s$, and the decay-width difference for the two mass eigenstates, $\Delta\Gamma_s$, from the flavor-tagged decay $B^0_s\rightarrow J/\psi\phi$. ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We present a measurement of the inclusive jet cross section using the Run II cone algorithm and data collected by the D0 experiment in $p\bar p$ collisions at a center-of-mass energy $\sqrt s=1.96\ \text{TeV}$, corresponding ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We present a measurement of the relative branching fraction, $R_{f_0/\phi}$, of $B^0_s\rightarrow J/\psi f_0(980)$, with $f_0(980)→\pi^+\pi^−$, to the process $B^0_s→J/\psi\phi$, with $ϕ→K^+K^−$. The $J/\psi f_0(980)$ final ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Aoki, M.; ... (American Physical Society, 2012)
    We present a measurement of the top-quark mass $(m_t)$ in $p\bar p$ collisions at $\sqrt s=1.96  \text{TeV}$ using $t\bar t$ events with two leptons $(ee, eμ, or μμ)$ and accompanying jets in $4.3  \text{fb}^{−1}$ of data ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Aoki, M.; ... (American Physical Society, 2012)
    We study the processes $p\bar p \rightarrow WZ \rightarrow ℓ^{±}\nu ℓ^{+}l^{-}$ and $p\bar p \rightarrow ZZ \rightarrow ℓ^{+}ℓ^{−}\nu\bar\nu$, where $ℓ=e$ or $\mu$. Using $8.6 \text{ fb}^{−1}$ of integrated luminosity ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We study $WW$ and $WZ$ production with $ℓνqq\ (ℓ=e,μ)$ final states using data collected by the D0 detector at the Fermilab Tevatron Collider corresponding to $4.3  \text{fb}^{−1}$ of integrated luminosity from $p\bar p$ ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We describe a model-independent search for physics beyond the standard model in lepton final states. We examine 117 final states using 1.1fb -1 of pp̄ collisions data at √s=1.96TeV collected with the D0 detector. We conclude ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We report a search for a narrow $t\bar t$ resonance that decays into a $\text{lepton+jets}$ final state based on an integrated luminosity of $5.3 \text{ fb}^{−1}$ of proton-antiproton collisions at $\sqrt s=1.96\ \text{TeV}$ ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alimena, J.; Alkhazov, G.; Alton, A.; Alverson, G.; ... (American Physical Society, 2012)
    We report on a search for charged massive long-lived particles (CMLLPs), based on $5.2  \text{fb}^{−1}$ of integrated luminosity collected with the D0 detector at the Fermilab Tevatron $p\bar p$ collider. We search for ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We present a search for pair production of doubly charged Higgs bosons in the processes $q\bar q→H^{++}H^{−−}$ decaying through $H^{±±}→τ^±τ^±,μ^±τ^±,μ^±μ^±$. The search is performed in pp¯ collisions at a center-of-mass ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Aoki, M.; ... (American Physical Society, 2012)
    We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of $7.3  \text{fb}^{−1}$, collected by the D0 detector ...
  • Abazov, V.M.; Abbott, B.; Acharya, B.S.; Adams, M.; Adams, T.; Alexeev, G.D; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; ... (American Physical Society, 2012)
    We present a measurement of $p\bar{p}\rightarrow Z\gamma\rightarrow\ell^+\ell^-\gamma (\ell = e, \mu)$ production with a data sample corresponding to an integrated luminosity of $6.2$ $\text{fb}^{-1}$ collected by the D0 ...

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