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Profil bibliographique

S. R. Hahn

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

11Publications signalées
391Citations signalées
1Affiliations récentes

Les institutions déclarées

Les domaines associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions ResearchNeutrino Physics ResearchParticle Detector Development and Performance

Les publications récentes

Accès ouvert 2013 article OpenAlex

Searches for the Higgs boson decaying to W+W−→ℓ+νℓ−ν¯ with the CDF II detector

T. Aaltonen, S. Amerio, D. Amidei, A. Anastassov et autres

We present a search for a standard model Higgs boson decaying to two $W$ bosons that decay to leptons using the full data set collected with the CDF II detector in $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ $p\overline{p}$ collisions at the Fermilab Tevatron, corresponding to …

fi, it, us, sk, jp, ru, gb, kr, es, ca, tw, ch (code pays fourni par la source)

8 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2009 article OpenAlex

Top quark mass measurement in the tt¯ all hadronic channel using a matrix element technique in pp¯ collisions at s=1.96 TeV

T. Aaltonen, J. Adelman, T. Akimoto, B. Álvarez González et autres

We present a measurement of the top quark mass in the all hadronic channel ($t\overline{t}\ensuremath{\rightarrow}b\overline{b}{q}_{1}{\overline{q}}_{2}{q}_{3}{\overline{q}}_{4}$) using $943\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ of $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ collected at the CDF II detector at Fermilab (CDF). We apply the standard model production and …

fi, us, jp, es, it, sk, ru, gb, ca, mx, kr, Soudan, tw, de, fr, ch (code pays fourni par la source)

13 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2009 article OpenAlex

Measurement of Resonance Parameters of Orbitally Excited Narrow B0 Mesons

T. Aaltonen, J. Adelman, T. Akimoto, M. Albrow et autres

We report a measurement of resonance parameters of the orbitally excited ($L=1$) narrow ${B}^{0}$ mesons in decays to ${B}^{(*)+}{\ensuremath{\pi}}^{\ensuremath{-}}$ using $1.7\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the ${B}_{2}^{*0}$ …

fi, us, jp, es, it, sk, ru, gb, ca, kr, Soudan, tw, de, fr, ch (code pays fourni par la source)

44 citations Physical Review Letters
Accès ouvert 2009 article OpenAlex

First measurement of the ratio of branching fractions B(Λb0→Λc+μ−ν¯μ)/B(Λb0→Λc+π−)

T. Aaltonen, J. Adelman, T. Akimoto, M. Albrow et autres

This article presents the first measurement of the ratio of branching fractions $\mathcal{B}({\ensuremath{\Lambda}}_{b}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})/\mathcal{B}({\ensuremath{\Lambda}}_{b}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$. Measurements in two control samples using the same technique $\mathcal{B}({\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})/\mathcal{B}({\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$ and $\mathcal{B}({\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{*}(2010{)}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})/\mathcal{B}({\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{*}(2010{)}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$ are also reported. The analysis uses data from an integrated luminosity of approximately $172\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ of …

fi, us, jp, es, it, sk, ru, gb, ca, kr, tw, de, fr, ch (code pays fourni par la source)

27 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2008 article OpenAlex

Search for Doubly Charged Higgs Bosons with Lepton-Flavor-Violating Decays Involving τ Leptons

T. Aaltonen, J. Adelman, T. Akimoto, M. G. Albrow et autres

We search for pair production of doubly charged Higgs particles (${H}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}}$) followed by decays into electron-tau ($e\ensuremath{\tau}$) and muon-tau ($\ensuremath{\mu}\ensuremath{\tau}$) pairs using data ($350\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$) collected from $\overline{p}p$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ by the CDF II experiment. We search separately …

fi, us, jp, es, it, sk, ru, gb, ca, mx, kr, tw (code pays fourni par la source)

47 citations Physical Review Letters
Accès ouvert 2008 article OpenAlex

Cross section measurements of high- pT dilepton final-state processes using a global fitting method

A. Abulencia, J. Adelman, T. Affolder, T. Akimoto et autres

We present a new method for studying high-${p}_{T}$ dilepton events (${e}^{\ifmmode\pm\else\textpm\fi{}}{e}^{\ensuremath{\mp}}$, ${\ensuremath{\mu}}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\mu}}^{\ensuremath{\mp}}$, ${e}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\mu}}^{\ensuremath{\mp}}$) and simultaneously extracting the production cross sections of $p\overline{p}\ensuremath{\rightarrow}t\overline{t}$, $p\overline{p}\ensuremath{\rightarrow}{W}^{+}{W}^{\ensuremath{-}}$, and $p\overline{p}\ensuremath{\rightarrow}{Z}^{0}\ensuremath{\rightarrow}{\ensuremath{\tau}}^{+}{\ensuremath{\tau}}^{\ensuremath{-}}$ at a center-of-mass energy of $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$. We perform a likelihood fit to the dilepton data …

us, jp, it, sk, ca, ru, gb, es, ch, mx, kr, tw (code pays fourni par la source)

11 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2008 article OpenAlex

Measurement of Lifetime and Decay-Width Difference in Bs0→J/ψϕ Decays

T. Aaltonen, A. Abulencia, J. Adelman, T. Akimoto et autres

We measure the mean lifetime $\ensuremath{\tau}=2/({\ensuremath{\Gamma}}_{L}+{\ensuremath{\Gamma}}_{H})$ and the decay-width difference $\ensuremath{\Delta}\ensuremath{\Gamma}={\ensuremath{\Gamma}}_{L}\ensuremath{-}{\ensuremath{\Gamma}}_{H}$ of the light and heavy mass eigenstates of the ${B}_{s}^{0}$ meson, ${B}_{sL}^{0}$ and ${B}_{sH}^{0}$, in ${B}_{s}^{0}\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\phi}$ decays using $1.7\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data collected with the CDF II detector at the …

fi, tw, us, jp, es, it, sk, ru, gb, ca, kr, Soudan (code pays fourni par la source)

51 citations Physical Review Letters
Accès ouvert 2007 article OpenAlex

Observation of the Heavy Baryons Σb and Σb*

T. Aaltonen, A. Abulencia, J. Adelman, A. A. Affolder et autres

We report an observation of new bottom baryons produced in $p\overline{p}$ collisions at the Tevatron. Using $1.1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data collected by the CDF II detector, we observe four ${\ensuremath{\Lambda}}_{b}^{0}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ resonances in the fully reconstructed decay mode ${\ensuremath{\Lambda}}_{b}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, where ${\ensuremath{\Lambda}}_{c}^{+}\ensuremath{\rightarrow}p{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$. We …

fi, us, jp, it, sk, ru, es, gb, ca, ch, kr, tw (code pays fourni par la source)

119 citations Physical Review Letters
Accès ouvert 2005 article OpenAlex

Measurements of bottom-antibottom azimuthal production correlations in proton-antiproton collisions at s=1.8 TeV

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)

34 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2005 article OpenAlex

Search for anomalous production of diphoton events with missing transverse energy at CDF and limits on gauge-mediated supersymmetry-breaking models

D. Acosta, J. Adelman, A. A. Affolder, T. Akimoto et autres

We present the results of a search for anomalous production of diphoton events with large missing transverse energy using the Collider Detector at Fermilab. In $202\text{ }\text{ }\mathrm{p}{\mathrm{b}}^{\ensuremath{-}1}$ of $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{T}\mathrm{e}\mathrm{V}$ we observe no candidate events, with an …

us, jp, it, tw, ca, ru, gb, de, ch, es, kr (code pays fourni par la source)

27 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2003 article OpenAlex

Search for the flavor-changing neutral current decay D0→μ+μ− in pp¯ collisions at s=1.96TeV

D. Acosta, A. A. Affolder, Myunggeun Ahn, T. Akimoto et autres

We report on a search for the flavor-changing neutral current decay ${D}^{0}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ in $p\overline{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$ using $65{\mathrm{pb}}^{\ensuremath{-}1}$ of data collected by the CDF II experiment at the Fermilab Tevatron Collider. A displaced-track trigger selects long-lived ${D}^{0}$ candidates in the ${D}^{0}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ …

us, kr, jp, it, tw, ca, ru, gb, de, ch (code pays fourni par la source)

10 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

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