Ruhr University Bochum

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Showing 2014 · hep-exShow all

42 papers · 2 filters

hep-ex2014★ 42 cited

Measurement of the $D^{0} \to π^{-} e^{+} ν_{e}$ differential decay branching fraction as a function of $q^{2}$ and study of form factor parameterizations

J. P. Lees

Based on a sample of 500 million $e^{+} e^{-} \to c c ˉ$ events recorded by the BaBar detector at c.m. energies of close to 10.6 GeV, we report on a study of the decay $D^0 \to π^- e^…

hep-ex2014★ 64 cited

Study of J/psi->eta phi pi+pi- at BESIII

M. Ablikim, M. N. Achasov, X. C. Ai +402

Based on a sample of $2.25 \times 1 0^{8} J / ψ$ events taken with the BESIII detector at the BEPCII collider, we present the results of a study of the decay $J / ψ \to η ϕ π^{+} π^{-}$ . The…

hep-ex2014★ 40 cited

Dalitz plot analyses of $B^{0} \to D^{-} D^{0} K^{+}$ and $B^{+} \to D^{0} D^{0} K^{+}$ decays

The BABAR Collaboration, J. P. Lees, others

We present Dalitz plot analyses for the decays of $B$ mesons to $D^{-} D^{0} K^{+}$ and $D^{0} D^{0} K^{+}$ . We report the observation of the $D_{s 1}^{*} (2700)^{+}$ resonance in these…

hep-ex2014★ 16 cited

Precision measurement of the $D^{* 0}$ decay branching fractions

M. Ablikim, M. N. Achasov, X. C. Ai +405

Using 482 pb $^{- 1}$ of data taken at $s = 4.009$ GeV, we measure the branching fractions of the decays of $D^{* 0}$ into $D^{0} π^{0}$ and $D^{0} γ$ to be $\BR(D^{*0} \to D^0π^0)=(65.5…

hep-ex2014★ 24 cited

Search for the $Y (4140)$ via $e^{+} e^{-} \to γ ϕ J / ψ$ at $s =$ 4.23, 4.26 and 4.36 GeV

M. Ablikim, M. N. Achasov, X. C. Ai +402

Using data samples collected at center-of-mass energies $s = 4.23$ , 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the produ…

hep-ex2014★ 3 cited

Search for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair

The BABAR Collaboration, J. P. Lees, others

We report on a search in $e^{+} e^{-}$ annihilations for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair. These objects, with a similar mass and similar decay mo…

hep-ex2014★ 12 cited

Evidence for $e^{+} e^{-} \to γ χ_{c 1, 2}$ at center-of-mass energies from 4.009 to 4.360 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +405

Using data samples collected at center-of-mass energies of $s$ = 4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a s…

hep-ex2014★ 19 cited

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

The BABAR Collaboration, J. P. Lees, others

We present a measurement of the asymmetry $A_{C P}$ between same-sign inclusive dilepton samples $ℓ^{+} ℓ^{+}$ and $ℓ^{-} ℓ^{-}$ ( $ℓ = e, μ$ ) from semileptonic B decays in Y(4…

hep-ex2014★ 4 cited

Search for C-parity violation in $J / ψ \to γ γ$ and $γ ϕ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +391

Using $1.06 \times 1 0^{8}$ $ψ (3686)$ events recorded in $e^{+} e^{-}$ collisions at $s =$ 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity violat…

hep-ex2014★ 10 cited

Bottomonium spectroscopy and radiative transitions involving the chi_bJ(1P,2P) states at BABAR

J. P. Lees

We use $(121 \pm 1)$ million $Υ (3 S)$ and $(98 \pm 1)$ million $Υ (2 S)$ mesons recorded by the BABAR detector at the PEP-II $e^{+} e^{-}$ collider at SLAC to perform a study of radiative tran…

hep-ex2014★ 11 cited

Search for the weak decays $J / ψ \to D_{s}^{(*)} e ν_{e}$

BESIII collaboration, M. Ablikim, M. N. Achasov +405

Using a sample of $2.25 \times 1 0^{8}$ $J / ψ$ events collected with the BESIII detector at the BEPCII collider, we search for the $J / ψ$ semi-leptonic weak decay $J/ψ\to D^{-}_{s} e^{+}…

hep-ex2014★ 137 cited

Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data

IceCube Collaboration, M. G. Aartsen, M. Ackermann +301

We present a measurement of neutrino oscillations via atmospheric muon neutrino disappearance with three years of data of the completed IceCube neutrino detector. DeepCore, a regio…

hep-ex2014★ 133 cited

Study of $e^{+} e^{-} \to ω χ_{c J}$ at center-of-mass energies from 4.21 to 4.42 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +405

Based on data samples collected with the BESIII detector at the BEPCII collider at 9 center-of-mass energies from 4.21 to 4.42 GeV, we search for the production of $e^+e^-\to ωχ_{c…

hep-ex2014

Spin Density Matrix of the $ω$ in the Reaction $p ˉ p \to ω π^{0}$

Crystal Barrel Collaboration, C. Amsler, F. H. Heinsius +8

The spin density matrix of the $ω$ has been determined for the reaction $p ˉ p \to ω π^{0}$ with unpolarized in-flight data measured by the Crystal Barrel LEAR exper…

hep-ex2014★ 3 cited

Observation of the baryonic decay $B ˉ^{0} \to Λ_{c}^{+} p ˉ K^{-} K^{+}$

BABAR Collaboration

We report the observation of the baryonic decay $B ˉ^{0} \to Λ_{c}^{+} p ˉ K^{-} K^{+}$ using a data sample of $471 \times 1 0^{6}$ $B B ˉ$ pairs produced in $e^{+} e^{-}$ annihilations a…

hep-ex2014★ 8 cited

Observation of $J / ψ \to p p ˉ a_{0} (980)$ at BESIII

M. Ablikim, M. N. Achasov, X. C. Ai +389

Using $2.25 \times 1 0^{8}$ $J / ψ$ events collected with the BESIII detector at the BEPCII storage rings, we observe for the first time the process $J / ψ \to p p ˉ a_{0} (980)$ ,…

hep-ex2014★ 126 cited

Observation of $e^{+} e^{-} \to π^{0} π^{0} h_{c}$ and a neutral charmoniumlike structure $Z_{c} (4020)^{0}$

M. Ablikim, M. N. Achasov, X. C. Ai +402

Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of $s = 4.23$ , 4.26, and 4.36~GeV, we observe $\EE…

hep-ex2014★ 114 cited

Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised proton

C. Adolph, R. Akhunzyanov, M. G. Alexeev +205

Measurements of the Collins and Sivers asymmetries for charged pions and charged and neutral kaons produced in semi-inclusive deep-inelastic scattering of high energy muons off tra…

hep-ex2014★ 35 cited

Search for exclusive photoproduction of Z $_{c}^{\pm}$ (3900) at COMPASS

C. Adolph, R. Akhunzyanov, M. G. Alexeev +205

A search for the exclusive production of the $Z_{c}^{\pm} (3900)$ hadron by virtual photons has been performed in the channel $Z_{c}^{\pm} (3900) \to J / ψ π^{\pm}$ . The data cover t…

hep-ex2014★ 53 cited

Study of B{+-,0} --> J/ψ K+ K- K{+-,0} and search for B0 --> J/ψ ϕ at BABAR

The BABAR Collaboration

We study the rare B meson decays B{+-,0} --> J/ψ K^+ K^- K{+-,0}, B{+-,0} --> J/ψ ϕ K{+-,0}, and search for B0 --> J/ψ ϕ, using 469 million BBbar events collected at the Upsilon(4S…

hep-ex2014★ 1 cited

Search for the radiative transitions $ψ (3770) \to γ η_{c}$ and $γ η_{c} (2 S)$

M. Ablikim, M. N. Achasov, X. C. Ai +380

By using a 2.92 fb $^{- 1}$ data sample taken at $s = 3.773$ GeV with the BESIII detector operating at the BEPCII collider, we search for the radiative transitions $ψ(3770)\to…

hep-ex2014★ 20 cited

Measurements of Direct CP Asymmetries in B to X_s gamma decays using Sum of Exclusive Decays

The Babar Collaboration

We measure the direct CP violation asymmetry, A_CP, in B to X_s gamma and the isospin difference of the asymmetry, Delta A_CP, using 429 fb^-1 of data collected at Upsilon(4S) reso…

hep-ex2014★ 427 cited

The Physics of the B Factories

A. J. Bevan, B. Golob, Th. Mannel +2003

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and da…

hep-ex2014★ 524 cited

Search for a dark photon in e+e- collisions at BABAR

The BABAR Collaboration

Dark sectors charged under a new Abelian force have recently received much attention in the context of dark matter models. These models introduce a light new mediator, the so-calle…

Measurement of the D0→π−e+νe​ differential decay branching fraction as a function of q2 and study of form factor parameterizations

Study of J/psi->eta phi pi+pi- at BESIII

Dalitz plot analyses of B0→D−D0K+ and B+→D0D0K+ decays

Precision measurement of the D∗0 decay branching fractions

Search for the Y(4140) via e+e−→γϕJ/ψ at s​= 4.23, 4.26 and 4.36 GeV

Search for new π0-like particles produced in association with a τ-lepton pair

Evidence for e+e−→γχc1,2​ at center-of-mass energies from 4.009 to 4.360 GeV

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

Search for C-parity violation in J/ψ→γγ and γϕ

Bottomonium spectroscopy and radiative transitions involving the chi_bJ(1P,2P) states at BABAR

Search for the weak decays J/ψ→Ds(∗)​eνe​

Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data

Study of e+e−→ωχcJ​ at center-of-mass energies from 4.21 to 4.42 GeV

Spin Density Matrix of the ω in the Reaction pˉ​p→ωπ0

Observation of the baryonic decay Bˉ0→Λc+​pˉ​K−K+

Observation of J/ψ→ppˉ​a0​(980) at BESIII

Observation of e+e−→π0π0hc​ and a neutral charmoniumlike structure Zc​(4020)0

Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised proton

Search for exclusive photoproduction of Zc±​(3900) at COMPASS

Study of B{+-,0} --> J/ψ K+ K- K{+-,0} and search for B0 --> J/ψ ϕ at BABAR

Search for the radiative transitions ψ(3770)→γηc​ and γηc​(2S)

Measurements of Direct CP Asymmetries in B to X_s gamma decays using Sum of Exclusive Decays

The Physics of the B Factories

Search for a dark photon in e+e- collisions at BABAR

Measurement of the $D^{0} \to π^{-} e^{+} ν_{e}$ differential decay branching fraction as a function of $q^{2}$ and study of form factor parameterizations

Dalitz plot analyses of $B^{0} \to D^{-} D^{0} K^{+}$ and $B^{+} \to D^{0} D^{0} K^{+}$ decays

Precision measurement of the $D^{* 0}$ decay branching fractions

Search for the $Y (4140)$ via $e^{+} e^{-} \to γ ϕ J / ψ$ at $s =$ 4.23, 4.26 and 4.36 GeV

Search for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair

Evidence for $e^{+} e^{-} \to γ χ_{c 1, 2}$ at center-of-mass energies from 4.009 to 4.360 GeV

Search for C-parity violation in $J / ψ \to γ γ$ and $γ ϕ$

Search for the weak decays $J / ψ \to D_{s}^{(*)} e ν_{e}$

Study of $e^{+} e^{-} \to ω χ_{c J}$ at center-of-mass energies from 4.21 to 4.42 GeV

Spin Density Matrix of the $ω$ in the Reaction $p ˉ p \to ω π^{0}$

Observation of the baryonic decay $B ˉ^{0} \to Λ_{c}^{+} p ˉ K^{-} K^{+}$

Observation of $J / ψ \to p p ˉ a_{0} (980)$ at BESIII

Observation of $e^{+} e^{-} \to π^{0} π^{0} h_{c}$ and a neutral charmoniumlike structure $Z_{c} (4020)^{0}$

Search for exclusive photoproduction of Z $_{c}^{\pm}$ (3900) at COMPASS

Search for the radiative transitions $ψ (3770) \to γ η_{c}$ and $γ η_{c} (2 S)$