S. Chen

activity

20242026

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hep-ex2025

Observation of the singly Cabibbo suppressed decay $D^{0} \to b_{1} (1235)^{-} e^{+} I^½_{e}$ and evidence for $D^{+} \to b_{1} (1235)^{0} e^{+} I^½_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +657

By analyzing a data sample of $e^{+} e^{-}$ collisions with center-of-mass energy $s = 3.773$ ~GeV, corresponding to an integrated luminosity of $7.9 fb^{- 1}$ collected with t…

hep-ex2025

Precision Measurement of the Branching Fraction of $D^{+} \to I^¼^{+} I^½_{I^} ¼$

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Using $20.3 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of $E_{c.m.} = 3.773$ GeV with the BESIII detector operating at the BEPCII collider,…

hep-ex2025

Measurements of $I ¨ (2 S)$ and $I ¨ _{c 1} (3872)$ production within fully reconstructed jets

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1114

This paper presents the first measurement of $I ¨ (2 S)$ and $I ¨ _{c 1} (3872)$ meson production within fully reconstructed jets. Each quarkonium state (tag) is reconstructed via its d…

hep-ex2025

Study of the light scalar $a_{0} (980)$ through the decay $D^{0} \to a_{0} (980)^{-} e^{+} I^½_{e}$ with $a_{0} (980)^{-} \to I^\cdot I ¨ ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +654

Using 7.93 $f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 $GeV$ with the BESIII detector, we present an analysis of the decay $D^{0}…

hep-ex2025

Observation and branching fraction measurement of the decay $J / I ¨ \to p ˉ I^£^{+} K_{S}^{0} + c . c .$

M. Ablikim, M. N. Achasov, P. Adlarson +612

The first observation of the decays $J / I ¨ \to p ˉ I^£^{+} K_{S}^{0}$ and $J / I ¨ \to p I^ˉ £^{-} K_{S}^{0}$ is reported using $(10087 \pm 44) \times 1 0^{6}$ $J\…

hep-ex2025

Test of lepton flavour universality with $B_{s}^{0} \to I ¨ ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1128

Lepton flavour universality in rare $b \to s$ transitions is tested for the first time using $B_{s}^{0}$ meson decays. The measurements are performed using $pp$ collision data c…

Observation of the singly Cabibbo suppressed decay D0→b1​(1235)−e+I^½e​ and evidence for D+→b1​(1235)0e+I^½e​

Precision Measurement of the Branching Fraction of D+→I^¼+I^½I^​¼

Measurements of I¨(2S) and I¨c1​(3872) production within fully reconstructed jets

Study of the light scalar a0​(980) through the decay D0→a0​(980)−e+I^½e​ with a0​(980)−→I^⋅I¨−

Observation and branching fraction measurement of the decay J/I¨→pˉ​I^£+KS0​+c.c.

Test of lepton flavour universality with Bs0​→I¨ℓ+ℓ− decays

Observation of the singly Cabibbo suppressed decay $D^{0} \to b_{1} (1235)^{-} e^{+} I^½_{e}$ and evidence for $D^{+} \to b_{1} (1235)^{0} e^{+} I^½_{e}$

Precision Measurement of the Branching Fraction of $D^{+} \to I^¼^{+} I^½_{I^} ¼$

Measurements of $I ¨ (2 S)$ and $I ¨ _{c 1} (3872)$ production within fully reconstructed jets

Study of the light scalar $a_{0} (980)$ through the decay $D^{0} \to a_{0} (980)^{-} e^{+} I^½_{e}$ with $a_{0} (980)^{-} \to I^\cdot I ¨ ^{-}$

Observation and branching fraction measurement of the decay $J / I ¨ \to p ˉ I^£^{+} K_{S}^{0} + c . c .$

Test of lepton flavour universality with $B_{s}^{0} \to I ¨ ℓ^{+} ℓ^{-}$ decays