X. Pan

activity

20242026

collaborators

58 papers

hep-ex2026

Precise Measurement of Chromoelectric Dipole Moment of the Charm Quark

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

The combined symmetry of charge conjugation and parity ( $C P$ ) is tested in the hadronic transition $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ , using a dataset of $(2712.4 \pm 14.3) \times 1 0^{6}$ $Ï…

hep-ex2026

First measurement of $I^£^{+} n \to I^ p$ and $I^£^{+} n \to I^£^{0} p$ cross sections via $I^£^{+}$ -nucleus scattering at an electron-positron collider

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

Using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII storage ring, the reactions $I^£^{+} n \to I^ p$ and $Î£^{+}n\rightarrowÎ£^…

hep-ex2026

Observation of $I ¨ _{c J} (J = 0, 1, 2) \to p p ˉ I^\cdot I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected by the BESIII detector operating at the BEPCII storage ring, the decays $I ¨ _{c J} (J = 0, 1, 2) \to p p ˉ I^\cdot I^\cdot$ are…

hep-ex2026

Study of $I^\cdot \to I ¨ ^{+} I ¨ ^{-} l^{+} l^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +639

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events accumulated with the BESIII detector, we analyze the decays $I^\cdot \to I ¨ ^{+} I ¨ ^{-} l^{+} l^{-}$ ( $l = e$ or $I^¼$ ) via the process…

hep-ex2026

Search for a dark baryon in the $I^^{-} \to I ¨ ^{-} + invisible$ decay

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

A search for a dark baryon is performed for the first time in the two-body decay $I^^{-} \to I ¨ ^{-} + invisible$ using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / I ¨ $ events collected…

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…

Precise Measurement of Chromoelectric Dipole Moment of the Charm Quark

First measurement of I^£+n→I^p and I^£+n→I^£0p cross sections via I^£+-nucleus scattering at an electron-positron collider

Observation of I¨cJ​(J=0,1,2)→ppˉ​I^⋅I^⋅

Study of I^⋅→I¨+I¨−l+l−

Search for a dark baryon in the I^−→I¨−+invisible decay

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

First measurement of $I^£^{+} n \to I^ p$ and $I^£^{+} n \to I^£^{0} p$ cross sections via $I^£^{+}$ -nucleus scattering at an electron-positron collider

Observation of $I ¨ _{c J} (J = 0, 1, 2) \to p p ˉ I^\cdot I^\cdot$

Study of $I^\cdot \to I ¨ ^{+} I ¨ ^{-} l^{+} l^{-}$

Search for a dark baryon in the $I^^{-} \to I ¨ ^{-} + invisible$ decay

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