W. Gradl

activity

20012022

most citedEvidence for an excess of B -> D(*) Tau Nu decays

857 citations · 22.4k across the 479 of their papers we have counts for

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Showing 2012 · hep-exShow all

19 papers · 2 filters

hep-ex2012★ 17 cited

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

BaBar Collaboration, J. P. Lees, V. Poireau +359

We report on a search for direct CP asymmetry in the singly Cabibbo-suppressed decay D+- --> K+ K- pi+- using a data sample of 476 fb-1 accumulated with the BaBar detector running…

hep-ex2012★ 11 cited

Search for $η$ and $η^{'} \to π^{+} e^{-} ν ˉ_{e} + c . c .$ decays in $\jpsi \to ϕη$ and $ϕ η^{'}$

M. Ablikim, M. N. Achasov, O. Albayrak +362

Using a sample of 225.3 million $\jpsi$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ collider in 2009, searches for the decays of $η$ and $η^\prime\toπ^+ e^- \b…

hep-ex2012★ 24 cited

Measurements of Baryon Pair Decays of $χ_{c J}$ Mesons

M. Ablikim, M. N. Achasov, O. Albayrak +348

Using 106 $\times 1 0^{6}$ $ψ^{'}$ decays collected with the BESIII detector at the BEPCII, three decays of $χ_{c J}$ ( $J = 0, 1, 2$ ) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in t…

hep-ex2012★ 7 cited

Observation of $η_{c}$ decay into $Σ^{+} Σ ˉ^{-}$ and $Ξ^{-} Ξ ˉ^{+}$ final states

The BESIII Collaboration, M. Ablikim, M. N. Achasov +349

Using a data sample of $2.25 \times 1 0^{8}$ $J / ψ$ events collected with the BESIII detector, we present the first observation of the decays of $η_{c}$ mesons to $Σ^{+} Σ ˉ^{-}$ and…

hep-ex2012★ 16 cited

Measurement of $χ_{c J}$ decaying into $p n ˉ π^{-}$ and $p n ˉ π^{-} π^{0}$

M. Ablikim, M. N. Achasov, O. Albayrak +345

Using a data sample of $1.06 \times 1 0^{8}$ $\psip$ events collected with the BESIII detector in 2009, the branching fractions of $χ_{c J} \to p n ˉ π^{-}$ and $χ_{cJ}\to p\bar{n}π…

hep-ex2012★ 55 cited

Study of $ψ (3686) \to π^{0} h_{c}, h_{c} \to γ η_{c}$ via $η_{c}$ exclusive decays

The BESIII Collaboration, M. Ablikim, M. N. Achasov +346

The process $ψ (3686) \to π^{0} h_{c}, h_{c} \to γ η_{c}$ has been studied with a data sample of $106 \pm 4$ million $ψ (3686)$ events collected with the BESIII detector at the BEPCII storage…

hep-ex2012★ 24 cited

Search for $η$ and $η^{'}$ Invisible Decays in $J / ψ \to ϕ η$ and $ϕ η^{'}$

M. Ablikim, M. N. Achasov, O. Albayrak +340

Using a sample of $(225.3 \pm 2.8) \times 1 0^{6}$ $J / ψ$ decays collected with the BESIII detector at BEPCII, searches for invisible decays of $η$ and $η^{'}$ in $J / ψ \to ϕ η$ and $ϕη…

hep-ex2012★ 5 cited

Experimental study of psi' decays to K+K- pi^0 and K+K- eta

M. Ablikim, M. N. Achasov, D. J. Ambrose +353

Using $(106 \pm 4) \times 1 0^{6}$ $\psip$ events accumulated with the BESIII detector at the BEPCII $e^{+} e^{-}$ collider, we present measurements of the branching fractions for psi' decays…

hep-ex2012★ 44 cited

Observation of $e^{+} e^{-} \to η J / ψ$ at center-of-mass energy $s q r t s = 4.009$ GeV

The BESIII Collaboration, M. Ablikim, M. N. Achasov +339

Using a 478 pb $^{- 1}$ data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of $s = 4.009$ GeV, the production of $e^{…

hep-ex2012★ 18 cited

Evidence for $η_{c} \to γ γ$ and Measurement of $J / ψ \to 3 γ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +340

The decay of $J / ψ$ to three photons is studied using $ψ (3686) \to π^{+} π^{-} J / ψ$ in a sample of $1.0641 \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector. Evidence of the di…

hep-ex2012★ 11 cited

The branching fraction of tau --> pi- K0S K0S (pi0) nu decays

J. P. Lees

We present a study of tau- --> pi- K0S K0S (pi0) nu and tau- --> K- K0S K0S (pi0) nu decays using a dataset of 430 million tau lepton pairs, corresponding to an integrated luminosi…

hep-ex2012★ 156 cited

Observation of Time Reversal Violation in the B0 Meson System

The BABAR Collaboration, J. P. Lees, V. Poireau +364

Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time reversal violation. The decays of entangled n…

hep-ex2012★ 1 cited

Observation of chi_{cJ} Decays to ΛΛbarπ^{+}π^{-}

BESIII Collaboration, M. Ablikim, M. N. Achasov +340

Decays of the chi_{cJ} states (J=0,\ 1,\ 2) to ΛΛbar\ pi^{+} π^{-}, including processes with intermediate Σ(1385), are studied through the E1 transition psi'-->γchi_{cJ} using 106…

hep-ex2012★ 11 cited

Search for resonances decaying to eta_c pi+ pi- in two-photon interactions

The BABAR Collaboration, J. P. Lees, others

We report a study of the process gamma gamma -> X -> eta_c pi+ pi-, where X stands for one of the resonances chi_{c2}(1P), eta_c(2S), X(3872), X(3915), or chi_{c2}(2P). The analysi…

hep-ex2012

First observation of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$

M. Ablikim, M. N. Achasov, D. J. Ambrose +356

Using a sample of 106 million ψ(3686) events collected with the BESIII detector at the BEPCII storage ring, we have made the first measurement of the M1 transition between the radi…

hep-ex2012★ 20 cited

Two-photon widths of the $χ_{c 0, 2}$ states and helicity analysis for $χ_{c2}\arγγ$}

BESIII Collaboration, M. Ablikim, M. N. Achasov +354

Based on a data sample of 106 M $ψ^{'}$ events collected with the BESIII detector, the decays $ψ^{\prime}\arγχ_{c0, 2}$,$χ_{c0, 2}\arγγ$ are studied to determine the two-photo…

hep-ex2012★ 857 cited

Evidence for an excess of B -> D(*) Tau Nu decays

The BaBar Collaboration

Based on the full BaBar data sample, we report improved measurements of the ratios R(D(*)) = B(B -> D(*) Tau Nu)/B(B -> D(*) l Nu), where l is either e or mu. These ratios are sens…

hep-ex2012

Study of $J / ψ \to p p ˉ$ and $J / ψ \to n n ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +354

The decays $J / ψ \to p p ˉ$ and $J / ψ \to n n ˉ$ have been investigated with a sample of 225.2 million $J / ψ$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ coll…

hep-ex2012★ 104 cited

Study of the reaction e^{+}e^{-} -->J/psiπ^{+}π^{-} via initial-state radiation at BaBar

The BABAR Collaboration

We study the process $e^{+} e^{-} \to J / ψ π^{+} π^{-}$ with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BaBar detector…

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

Search for η and η′→π+e−νˉe​+c.c. decays in $\jpsi \to ϕη$ and ϕη′

Measurements of Baryon Pair Decays of χcJ​ Mesons

Observation of ηc​ decay into Σ+Σˉ− and Ξ−Ξˉ+ final states

Measurement of χcJ​ decaying into pnˉπ− and pnˉπ−π0

Study of ψ(3686)→π0hc​,hc​→γηc​ via ηc​ exclusive decays

Search for η and η′ Invisible Decays in J/ψ→ϕη and ϕη′

Experimental study of psi' decays to K+K- pi^0 and K+K- eta

Observation of e+e−→ηJ/ψ at center-of-mass energy sqrts=4.009 GeV

Evidence for ηc​→γγ and Measurement of J/ψ→3γ

The branching fraction of tau --> pi- K0S K0S (pi0) nu decays

Observation of Time Reversal Violation in the B0 Meson System

Observation of chi_{cJ} Decays to ΛΛbarπ^{+}π^{-}

Search for resonances decaying to eta_c pi+ pi- in two-photon interactions

First observation of the M1 transition ψ(3686)→γηc​(2S)

Two-photon widths of the χc0,2​ states and helicity analysis for $χ_{c2}\arγγ$}

Evidence for an excess of B -> D(*) Tau Nu decays

Study of J/ψ→ppˉ​ and J/ψ→nnˉ

Study of the reaction e^{+}e^{-} -->J/psiπ^{+}π^{-} via initial-state radiation at BaBar

Search for $η$ and $η^{'} \to π^{+} e^{-} ν ˉ_{e} + c . c .$ decays in $\jpsi \to ϕη$ and $ϕ η^{'}$

Measurements of Baryon Pair Decays of $χ_{c J}$ Mesons

Observation of $η_{c}$ decay into $Σ^{+} Σ ˉ^{-}$ and $Ξ^{-} Ξ ˉ^{+}$ final states

Measurement of $χ_{c J}$ decaying into $p n ˉ π^{-}$ and $p n ˉ π^{-} π^{0}$

Study of $ψ (3686) \to π^{0} h_{c}, h_{c} \to γ η_{c}$ via $η_{c}$ exclusive decays

Search for $η$ and $η^{'}$ Invisible Decays in $J / ψ \to ϕ η$ and $ϕ η^{'}$

Observation of $e^{+} e^{-} \to η J / ψ$ at center-of-mass energy $s q r t s = 4.009$ GeV

Evidence for $η_{c} \to γ γ$ and Measurement of $J / ψ \to 3 γ$

First observation of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$

Two-photon widths of the $χ_{c 0, 2}$ states and helicity analysis for $χ_{c2}\arγγ$}

Study of $J / ψ \to p p ˉ$ and $J / ψ \to n n ˉ$