Y. H. Wang

Measurements of the branching fractions of $χ_{cJ}\to ϕϕη, ϕϕη^{\prime}$ and $ϕK^+K^-η$

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

Using a sample of $(2712.4 \pm 14.3)\times 10^6 ~ψ$(3686) events collected by the BESIII detector at the BEPCII collider, we measure the branching fractions of the decays $χ_{cJ}\to ϕϕη,~ϕϕη^{\prime}$, and~$ϕK^+K^-η$ ($J = 0, 1, 2$). The obtained branching fractions are $\mathcal{B}(χ_{c0} \to …

First measurement of the absolute branching fractions of $Σ^+$ nonleptonic decays and test of the $ΔI = 1/2$ rule

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

Based on $(10087 \pm 44) \times 10^6$ $J/ψ$ events collected by the BESIII detector at the center-of-mass energy $\sqrt{s} = 3.097$ GeV, the first absolute measurement of the branching fractions for the decays $Σ^+ \to p π^0$ and $Σ^+ \to n π^+$ …

Measurements of absolute branching fractions of $D^{0(+)}\to KKKπ$ decays

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

Using an $e^+e^-$ sample of $20.3\,\rm fb^{-1}$ collected at the center-of-mass energy $\sqrt{s}=$ 3.773 GeV with the BESIII detector, we report measurements of several four-body hadronic decays of the $D$ mesons. The absolute branching fractions are determined to be ${\mathcal B}(D^0\to K^0_S …

First Observation of Quantum Correlations in e + e − → X D D ¯ and C -Even Constrained D D ¯ Pairs

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

The study of meson pairs produced with quantum correlations gives direct access to parameters that are challenging to measure in other systems. In this Letter, the existence of quantum correlations due to charge-conjugation symmetry C are demonstrated in DD[over ¯] pairs produced …

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Search for J / ψ → K S 0 K S 0 and ψ ( 3686 ) → K S 0 K S 0

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

Using data samples of ( 10087 ± 44 ) × 10 6 J / ψ events and ( 2712.4 ± 14.3 ) × 10 6 ψ ( 3686 ) events collected with the BESIII detector at the BEPCII collider, we search for …

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Search for a 1 − + molecular state via e + e − → γ D s + D s 1 − ( 2536 ) + c . c .

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

We search, for the first time, for an exotic molecular state with quantum numbers J P C = 1 − + , called X , via the process e + e − → γ D s + D s 1 − ( …

cn, ru, se, de, it, pl, mn, us, tr, kr (code pays fourni par la source)

Improved measurement of absolute branching fraction of the inclusive decay $$ {\Lambda}_c^{+}\to {K}_S^0X $$

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

A bstract By analyzing 4.5 fb − 1 of e + e − collision data accumulated with the BESIII detector at center-of-mass energies ranging from 4599.53 MeV to 4698.82 MeV, we report the measurement of the absolute branching fraction (BF) of the …

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Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$

M. Ablikim, М. Н. Ачасов, P. Adlarson, O. Afedulidis et autres

A bstract We report an improved study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$ D 0 → K ¯ 0 π − e + ν e based on a sample of 7.9 fb − 1 of e + e − annihilation …

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Search for a $1^{-+}$ molecular state via $e^{+}e^{-} \to γD^{+}_{s} D_{s1}^{-}(2536) +c.c.$

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

We search, for the first time, for an exotic molecular state with quantum numbers $J^{PC}=1^{-+}$, called $X$, via the process $e^{+}e^{-} \to γD^{+}_{s} D_{s1}^{-}(2536) +c.c.$ using data samples corresponding to a luminosity of $5.8~\mathrm{fb^{-1}}$ across center-of-mass energies from 4.612 to 4.951~GeV, collected …

Measurement of cross sections of $$ {e}^{+}{e}^{-}\to {K}_S^0{K}_S^0\psi (3686) $$ from $$ \sqrt{s} $$ = 4.682 to 4.951 GeV

M. Ablikim, M. N. Achasov, P. Adlarson, O. Afedulidis et autres

A bstract The process $$ {e}^{+}{e}^{-}\to {K}_S^0{K}_S^0\psi (3686) $$ e + e − → K S 0 K S 0 ψ 3686 is studied by analyzing e + e − collision data samples collected at eight center-of-mass energies ranging from 4.682 to …

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Measurement of e+e− → ωη′ cross sections at $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

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

A bstract We measured the Born cross sections for the process e + e − → ωη ′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with the BESIII detector at the BEPCII collider. We observed a resonant structure with a …

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Privatization's Impacts on State-Owned Enterprises: A Tale of Zombie Versus Healthy Firms

Ruiting Wang, Y. H. Wang, Gang Xu, Tao Zha

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