X. -R. Lyu

Cross Section Measurements of $\bar{n}p \rightarrow K^{+}K^{-}π^{+}(π^{0})$ via Antineutrons Produced by $J/ψ\to p π^{-} \bar{n}$ Decays

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

Based on a novel method for producing antineutrons via $J/ψ$ decays, we report a study of $\bar{n}p$ inelastic scattering into final states containing kaons. The analysis uses $(10087\pm44)\times 10^6$ $J/ψ$ events collected at the BESIII detector operating at the BEPCII storage ring. …

$B$-jet fragmentation with $B^{\pm} \to J/ψK^{\pm}$ decays in $\sqrt{s} = 13$ TeV $pp$ collisions at LHCb

LHCb Collaboration, R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta et autres

The collinear and transverse-momentum-dependent jet fragmentation function and the radial profile for $B^{\pm}$ mesons in jets are measured. The $B^{\pm}$ mesons are reconstructed through the $J/ψ(\to μ^{+} μ^{-}) K^{\pm}$ decay channel using proton-proton collision data collected during 2016-2018 with the LHCb detector …

Search for the radiative decays $D^0\to γ\bar K_1(1270)^0$ and $D^+\to γK_1(1270)^+$

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

A search for the radiative decays $D^0\to γ\bar K_1(1270)^0$ and $D^+\to γK_1(1270)^+$ is conducted using $20.3~\mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data collected at the center-of-mass energy $\sqrt{s}=3.773$ GeV by the BESIII detector operating at the BEPCII collider. No significant signals are observed, and …

[Comparison of epidemiological characteristics and severity of influenza virus and respiratory syncytial virus infection in hospitalized children under 5 years old in Changzhou, Jiangsu Province].

D. Wu, J Zhao, J Y Jiang, C L Han et autres

RSV-related respiratory infection was more severe than influenza virus infection in children under 5 years old. Children under 1 year old are at high risk for RSV infection, and further etiological surveillance is needed to reduce the risk for serious illness.

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Measurement of CP asymmetry in D0 → KS0KS0 decays with Run 3 data

R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres

A measurement of CP asymmetry in D0 → KS0KS0 decays is reported, based on a data sample of proton-proton collisions collected with the LHCb detector in 2024 at a centre-of-mass energy of 13.6 TeV , corresponding to an integrated luminosity of 6.2 …