Y. Fan

collaborators

6 papers

hep-ex2026

Unexpected large relative strong phase and search for isospin breaking and $C P$ asymmetries in $J/Ï\to K^*(892)\bar K

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

Using a direct scan of 26 energy points near the $J / I ¨ $ resonance, we perform the first measurement of the relative phase $I ¨ _{I^^{3}, 3 g}$ between the strong and electromagnetic ampli…

hep-ex2026

Measurement of branching fractions of $D_{s}^{+} \to K_{S}^{0} K_{S}^{0} π^{+} π^{0}$ and $D_{s}^{+} \to K_{S}^{0} K^{+} π^{0} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

By analyzing $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 7.33~fb $^{- 1}$ collected with the BESIII detector at center-of-mass energies ranging from 4.128 to…

hep-ex2026

Updated measurement of the branching fraction of $D_{s}^{+} \to I ¨ ^{+} I^½_{I ¨} $

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using a dataset of 7.33 fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected with the BESIII detector at center-of-mass energies from 4.128 to 4.226 GeV, we report an updated measure…

hep-ex2026

Study of $I ¨ \to K K ˉ$ in the amplitude analysis of $D^{+} \to K_{S}^{0} K_{L}^{0} I ¨ ^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +772

We present the first amplitude analysis and branching fraction measurement of $D^{+} \to K_{S}^{0} K_{L}^{0} I ¨ ^{+}$ decay. The analysis uses a dataset corresponding to an in…

hep-ex2026

Observation of a Doubly-strange Hyperon $I^ (1720)$ in $J / I ¨ \to K^{-} I^£^{0} I^ˉ ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

Based on a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at BEPCII, we report the first observation of the decay $J/Ï\rightarrow K^- Î£^0…

hep-ex2026

Search for a massless particle beyond the Standard Model in the $Ξ^{0} \to Λ + invisible$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +770

A search for a massless beyond-standard-model particle is performed in the decay $Ξ^{0} \to Λ + invisible$ using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with…

Unexpected large relative strong phase and search for isospin breaking and CP asymmetries in $J/Ï\to K^*(892)\bar K

Measurement of branching fractions of Ds+​→KS0​KS0​π+π0 and Ds+​→KS0​K+π0π0

Updated measurement of the branching fraction of Ds+​→I¨+I^½I¨​

Study of I¨→KKˉ in the amplitude analysis of D+→KS0​KL0​I¨+

Observation of a Doubly-strange Hyperon I^(1720) in J/I¨→K−I^£0I^ˉ++c.c.

Search for a massless particle beyond the Standard Model in the Ξ0→Λ+invisible decay

Unexpected large relative strong phase and search for isospin breaking and $C P$ asymmetries in $J/Ï\to K^*(892)\bar K

Measurement of branching fractions of $D_{s}^{+} \to K_{S}^{0} K_{S}^{0} π^{+} π^{0}$ and $D_{s}^{+} \to K_{S}^{0} K^{+} π^{0} π^{0}$

Updated measurement of the branching fraction of $D_{s}^{+} \to I ¨ ^{+} I^½_{I ¨} $

Study of $I ¨ \to K K ˉ$ in the amplitude analysis of $D^{+} \to K_{S}^{0} K_{L}^{0} I ¨ ^{+}$

Observation of a Doubly-strange Hyperon $I^ (1720)$ in $J / I ¨ \to K^{-} I^£^{0} I^ˉ ^{+} + c . c .$

Search for a massless particle beyond the Standard Model in the $Ξ^{0} \to Λ + invisible$ decay