C. Feng

collaborators

7 papers

hep-ex2026

Proof of principle for nucleon polarization measurement at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

A novel technique for measuring the spin polarization of final-state nucleons in a general-purpose spectrometer is validated. Using $10.09 \times 1 0^{9}$ $J / I ¨ $ events at BESIII, the…

hep-ex2026

Search for the electromagnetic Dalitz decays $I ¨ _{c J} \to e^{+} e^{-} I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using a data sample of $(2.712 \pm 0.014) \times 1 0^{9}$ $I ¨ (3686)$ events collected at $s = 3.686$ GeV by the BESIII detector, we search for the rare electromagnetic Dalitz dec…

hep-ex2025

First measurements of the branching fractions of $J / I ¨ \to I^^{0} I^ˉ K_{S}^{0} + c . c .$ , $J / I ¨ \to I^^{0} I^ˉ £^{0} K_{S}^{0} + c . c .$ , and $J / I ¨ \to I^^{0} I^ˉ £^{-} K^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +686

By analyzing $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII, the decays $J / I ¨ \to I^^{0} I^ˉ K_{S}^{0} + c . c .$ , $J / I ¨ \to I^^{0} I^ˉ £^{0} K_{S}^{0} + c . c .$ …

hep-ex2025

First Measurement of the $D_{s}^{+} \to K^{0} I^¼^{+} I^½_{I^} ¼$ Decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +693

We report the first measurement of the semileptonic decay $D_{s}^{+} \to K^{0} I^¼^{+} I^½_{I^} ¼$ , using a sample of $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity o…

hep-ex2025

Search for the lepton number violating decay $I^\cdot \to I ¨ ^{+} I ¨ ^{+} e^{-} e^{-} + c . c .$ via $J / I ¨ \to I ¨ I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Based on a sample of $(10.087 \pm 0.044) \times 1 0^{9} J / I ¨ $ events collected by the BESIII detector at the BEPCII collider, we perform the first search for the lepton number violat…

hep-ex2025

Investigation of hadronic cross sections of cosmic ray carbon and oxygen on BGO from 200 GeV to 10 TeV energy at the DAMPE experiment

F. Alemanno, Q. An, P. Azzarello +143

The Dark Matter Particle Explorer (DAMPE) has made significant progress in measuring the fluxes of cosmic rays. These new measurements are pivotal in advancing our understanding of…

Proof of principle for nucleon polarization measurement at BESIII

Search for the electromagnetic Dalitz decays I¨cJ​→e+e−I¨

First measurements of the branching fractions of J/I¨→I^0I^ˉKS0​+c.c., J/I¨→I^0I^ˉ£0KS0​+c.c., and J/I¨→I^0I^ˉ£−K++c.c.

First Measurement of the Ds+​→K0I^¼+I^½I^​¼ Decay

Search for the lepton number violating decay I^⋅→I¨+I¨+e−e−+c.c. via J/I¨→I¨I^⋅

Investigation of hadronic cross sections of cosmic ray carbon and oxygen on BGO from 200 GeV to 10 TeV energy at the DAMPE experiment

Search for the electromagnetic Dalitz decays $I ¨ _{c J} \to e^{+} e^{-} I ¨ $

First measurements of the branching fractions of $J / I ¨ \to I^^{0} I^ˉ K_{S}^{0} + c . c .$ , $J / I ¨ \to I^^{0} I^ˉ £^{0} K_{S}^{0} + c . c .$ , and $J / I ¨ \to I^^{0} I^ˉ £^{-} K^{+} + c . c .$

First Measurement of the $D_{s}^{+} \to K^{0} I^¼^{+} I^½_{I^} ¼$ Decay

Search for the lepton number violating decay $I^\cdot \to I ¨ ^{+} I ¨ ^{+} e^{-} e^{-} + c . c .$ via $J / I ¨ \to I ¨ I^\cdot$