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Source: Physical Review Letters. 2017. Vol. 118, № 1. P. 012001-012001-8
Type: статьи в журналах
Date: 2017
Description:
Based on a sample of 1.31×109 J/ψ events collected with the BESIII detector, an amplitude analysis of the isospin-violating decays η′→π+π−π0 and η′→π0π0π0 is performed. A significant P-wave contribut
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Source: Physics Letters B. 2017. Vol. 774. P. 252-257
Type: статьи в журналах
Date: 2017
Description:
Using a data set of 2.93 fb−1 taken at a center-of-mass energy s=3.773 GeV with the BESIII detector at the BEPCII collider, we perform a search for an extra U(1) gauge boson, also denoted as a dark ph
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Source: Chinese physics C. 2017. Vol. 41, № 1. P. 013001 (1-10)
Type: статьи в журналах
Date: 2017
Description:
A measurement of the number of J/ψ events collected with the BESIII detector in 2009 and 2012 is performed using inclusive decays of the J/ψ. The number of J/ψ events taken in 2009 is recalculated to
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Source: Physical Review D. 2017. Vol. 95, № 9. P. 092004-1-092004-13
Type: статьи в журналах
Date: 2017
Description:
Using ð223.7 1.4Þ × 106 J=ψ events accumulated with the BESIII detector, we study ηc decays to ϕϕ and ωϕ final states. The branching fraction of ηc → ϕϕ is measured to be Brðηc → ϕϕÞ ¼ ð2.5 0.3þ0.3 −0
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Source: Physical Review D. 2017. Vol. 95, № 7. P. 072004-1-072004-13
Type: статьи в журналах
Date: 2017
Description:
Using 106 ×106 ψð3686Þ events collected with the BESIII detector, we measure multipole amplitudes for the decay ψð3686Þ → γχc1;2 → γγJ=ψ beyond the dominant electric-dipole amplitudes. The normalized
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Source: Physical Review Letters. 2017. Vol. 118, № 22. P. 221802-1-221802-8
Type: статьи в журналах
Date: 2017
Description:
Using 4.479 × 108 ψð3686Þ events collected with the BESIII detector, we search for the decays ψð3686Þ → eþe−χcJ and χcJ → eþe−J=ψ, where J ¼ 0, 1, 2. The decays ψð3686Þ → eþe−χcJ and χcJ → eþe−J=ψ are
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Source: Physical Review Letters. 2016. Vol. 116, № 4. P. 042001-1-042001-7
Type: статьи в журналах
Date: 2016
Description:
We present a measurement of the azimuthal asymmetries of two charged pions in the inclusive process e+e−→ππX, based on a data set of 62 pb−1 at the center-of-mass energy of 3.65 GeV collected with th
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Source: Physics Letters B. 2016. Vol. 753. P. 103-109
Type: статьи в журналах
Date: 2016
Description:
By analyzing a data set of 2.92 fb−12.92 fb−1 of e+e−e+e− collision data taken at View the MathML sources=3.773 GeV and 106.41×106106.41×106ψ(3686)ψ(3686) decays taken at View the MathML sources=3.686
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Source: Physics Letters B. 2016. Vol. 753. P. 629-638
Type: статьи в журналах
Date: 2016
Description:
We extract the e+e−→π+π−e+e−→π+π− cross section in the energy range between 600 and 900 MeV, exploiting the method of initial state radiation. A data set with an integrated luminosity of 2.93 fb−12.93
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Source: Physical Review Letters. 2016. Vol. 116, № 5. P. 052001-1-052001-7
Type: статьи в журналах
Date: 2016
Description:
We report the first measurement of absolute hadronic branching fractions of Λ+c baryon at the Λ+cΛ¯−c production threshold, in the 30 years since the Λ+c discovery. In total, 12 Cabibbo-favored Λ+c ha
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Source: Chinese physics C. 2016. Vol. 40, № 6. P. 063001-1-063001-8
Type: статьи в журналах
Date: 2016
Description:
From 2011 to 2014, the BESIII experiment collected about 5 fb−1 data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmonium states. By analyzing t
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Source: Physical Review Letters. 2016. Vol. 116, № 25. P. 251802-1-251802-7
Type: статьи в журналах
Date: 2016
Description:
A search for radiative decays of the P-wave spin singlet charmonium resonance hc is performed based on 4.48×108 ψ′ events collected with the BESIII detector operating at the BEPCII storage ring. Event
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Source: Physical Review Letters. 2016. Vol. 116, № 8. P. 082001-1-082001-7
Type: статьи в журналах
Date: 2016
Description:
Based on 2.93 fb−1 e+e− collision data taken at center-of-mass energy of 3.773 GeV by the BESIII detector, we report searches for the singly Cabibbo-suppressed decays D+→ωπ+ and D0→ωπ0. A double tag
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Source: Physics Letters B. 2015. Vol. 749. P. 414-420
Type: статьи в журналах
Date: 2015
Description:
Using the data sets taken at center-of-mass energies above 4 GeV by the BESIII detector at the BEPCII storage ring, we search for the reaction e+e- -> gamma_ISR X(3872) -> gamma_ISR pi+pi-J/psi via th
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Source: Physical Review D. 2015. Vol. 92, № 9. P. 092006-1-092006-15
Type: статьи в журналах
Date: 2015
Description:
We present a study of the process e+e-→π±(DD¯*)∓ using data samples of 1092 pb-1 at s=4.23 GeV and 826 pb-1 at s=4.26 GeV collected with the BESIII detector at the BEPCII storage ring. With full r
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