A. Guo

collaborators

4 papers

hep-ex2026

Search for the charmonium weak decay $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +720

We search for the weak decays $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ for the first time. The search is based on $(2712.4 \pm 14.3) \times 1 0^{6}$ events containin…

hep-ex2026

First Amplitude Analysis of $D^{0} \to K^{-} I ¨ ^{0} e^{+} I^½_{e}$ and Observation of $D^{0} \to K_{2}^{*} (1430)^{-} e^{+} I^½_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +687

We present the first amplitude analysis of the semileptonic decay $D^{0} \to K^{-} I ¨ ^{0} e^{+} I^½_{e}$ by analyzing $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of…

hep-ex2026

A novel approach to determine photon polarization at collider experiments

Xiao-Rong Lv, Yu-Tie Liang, Boxing Gou +2

The polarization of final-state photons is a critical observable for probing the fundamental mechanisms of particle and nuclear interactions, providing insights into spin and parit…

hep-ex2025

A novel design of general-purpose spectrometer with nucleon polarimeter function

Chuang-Xin Lin, Xiao-Rong Lv, Boxing Gou +2

The spin polarization of hadrons is a key observable for probing the details of particle and nuclear interactions, offering information not available from other measurements. Curre…

Search for the charmonium weak decay I¨(2S)→Ds−​I¨++c.c. and I¨(2S)→Ds−​I¨++c.c.

First Amplitude Analysis of D0→K−I¨0e+I^½e​ and Observation of D0→K2∗​(1430)−e+I^½e​

A novel approach to determine photon polarization at collider experiments

A novel design of general-purpose spectrometer with nucleon polarimeter function

Search for the charmonium weak decay $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$

First Amplitude Analysis of $D^{0} \to K^{-} I ¨ ^{0} e^{+} I^½_{e}$ and Observation of $D^{0} \to K_{2}^{*} (1430)^{-} e^{+} I^½_{e}$