Q. Ouyang

First Measurement of the Decay Dynamics in the Semileptonic Transition of D + ( 0 ) into the Axial-Vector Meson K ¯ 1 ( 1270 )

M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai et autres

Using e^{+}e^{-} data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 20.3 fb^{-1}, we report the first measurement of the decay dynamics of the semileptonic decays D^{+(0)}→K^{-}π^{+}π^{0(-)}e^{+}ν_{e}. The amplitude analysis gives the …

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Evidence of doubly OZI-suppressed decay η c → ω ϕ in the radiative decay J / ψ → γ η c

M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai et autres

Using a sample of ( 10087 ± 44 ) × 10 6 J / ψ events collected with the BESIII detector at the BEPCII collider, the first evidence for the doubly Okubo-Zweig-Iizuka (OZI)-suppressed decay η c → ω ϕ is reported with …

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Observation of χ c J → 3 K S 0 K ± π ∓

M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai et autres

By analyzing ( 2712.4 ± 14.3 ) × 10 6 ψ ( 3686 ) events collected with the BESIII detector operating at the BEPCII collider, the decays χ c 0 , 1 , 2 → 3 K S 0 K ± π …

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Measurements of branching fractions of D 0 → K − 3 π + 2 π − , D 0 → K − 2 π + π − 2 π 0 , and D + → K − 3 π + π − π 0

M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti et autres

Utilizing 7.9 fb − 1 of e + e − collision data taken with the BESIII detector at the center-of-mass energy of 3.773 GeV, we report the measurements of absolute branching fractions of the hadronic decays D 0 → K − 3 …

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Search for $e^+e^-\to K_S^0 K_S^0 h_c$

BESIII Collaboration, M. Ablikim, М. Н. Ачасов, P. Adlarson et autres

Using $e^+e^-$ collision data at 13 center-of-mass energies ranging from 4.600 to 4.950 GeV collected with the BESIII detector, we search for the unmeasured $e^+e^-\to K_S^0 K_S^0 h_c$ process . No significant signal is observed, and the upper limits of the Born …

Measurement of Branching Fractions for $Λ_{c}^{+} \rightarrow n K_{S}^{0} π^{+}$ and $Λ_{c}^{+} \rightarrow n K_{S}^{0} K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson et autres

Based on 4.5 fb$^{-1}$ of $e^{+}e^{-}$ collision data accumulated at center-of-mass energies between $4.600\,\mathrm{GeV}$ and $4.699\,\mathrm{GeV}$ with the BESIII detector, we measure the absolute branching fraction of the Cabibbo-favored decay $Λ_{c}^{+} \rightarrow n K_{S}^{0} π^{+}$ with the precision improved by a factor …

Dijet Resonance Search with Weak Supervision Using s=13 TeV pp Collisions in the ATLAS Detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

This Letter describes a search for narrowly resonant new physics using a machine-learning anomaly detection procedure that does not rely on signal simulations for developing the analysis selection. Weakly supervised learning is used to train classifiers directly on data to enhance potential …

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Inclusive charged and neutral particle multiplicity distributions in χcJ and J/ψ decays

М. Н. Ачасов, P. Adlarson, S. Ahmed, M. Albrecht et autres

Using a sample of 106 million $\ensuremath{\psi}(3686)$ decays, $\ensuremath{\psi}(3686)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\chi}}_{cJ}(J=0,1,2)$ and $\ensuremath{\psi}(3686)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\chi}}_{cJ},{\ensuremath{\chi}}_{cJ}\ensuremath{\rightarrow}\ensuremath{\gamma}J/\ensuremath{\psi}(J=1,2)$ events are utilized to study inclusive ${\ensuremath{\chi}}_{cJ}\ensuremath{\rightarrow}\text{anything}$, ${\ensuremath{\chi}}_{cJ}\ensuremath{\rightarrow}\text{hadrons}$, and $J/\ensuremath{\psi}\ensuremath{\rightarrow}\text{anything}$ distributions, including distributions of the number of charged tracks, electromagnetic calorimeter showers, and ${\ensuremath{\pi}}^{0}\mathrm{s}$, and to compare them with distributions obtained …

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Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in p p Collisions at s = 13 TeV with the ATLAS Detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

The elliptic flow of muons from the decay of charm and bottom hadrons is measured in pp collisions at sqrt[s]=13 TeV using a data sample with an integrated luminosity of 150 pb^{-1} recorded by the ATLAS detector at the LHC. The muons …

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Search for bottom-squark pair production with the ATLAS detector in final states containing Higgs bosons, b-jets and missing transverse momentum

G. Aad, B. Abbott, D. C. Abbott, O. Abdinov et autres

Abstract The result of a search for the pair production of the lightest supersymmetric partner of the bottom quark $$ \left({\tilde{b}}_1\right) $$ b ˜ 1 using 139 fb −1 of proton-proton data collected at $$ \sqrt{s} $$ s = 13 TeV by …

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Measurements of inclusive and differential fiducial cross-sections of $$t\bar{t}\gamma $$ production in leptonic final states at $$\sqrt{s}=13~\text {TeV}$$ in ATLAS

M. Aaboud, G. Aad, B. Abbott, D. C. Abbott et autres

Measurements of inclusive and differential fiducial cross-sections of

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Performance of top-quark and $$\varvec{W}$$ W -boson tagging with ATLAS in Run 2 of the LHC

M. Aaboud, G. Aad, B. Abbott, O. Abdinov et autres

The performance of identification algorithms ("taggers") for hadronically decaying top quarks and W bosons in pp collisions at √ s = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider is presented.A set of techniques based on jet shape …

Maroc, fr, us, az, gb, ca, dk, il, it, jp, pl, de, tr, ro, pt, ru, se, ch, ar, nl, gr, es, br (code pays fourni par la source)