papers

Publications (111)

math.CO2026

Full homomorphisms to graph classes

Pavol Hell, César Hernández-Cruz

Given a family of graphs , we define a graph to be fully -colourable if admits a full homomorphism to some in . We approach the p…

hep-ex2026

Search for the charged lepton flavour violating decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +765

Based on events collected in collisions at GeV with the BESIII detector, we present a search for the charged lepton flavou…

hep-ex2026

Precision Measurement of Decay Dynamics in

BESIII Collaboration, M. Ablikim, M. N. Achasov +773

The branching fractions of , , , and are precisely measured, using 20.3 fb of c…

hep-ex2026

Precision measurements of semleptonic decays and ()

BESIII Collaboration, M. Ablikim, M. N. Achasov +773

The branching fractions of , , , and are measured to be $(2.950\pm0.017_{\rm stat.}\pm 0.017_{\…

hep-ex2026

Measurement of Born Cross Section for at GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +759

Using collision data collected with the BESIII detector at the BEPCII collider corresponding to a total integrated luminosity of 44~fb, we present the first measure…

hep-ex2026

First Measurement of the Relative Phase between Proton Psionic Form Factors

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

The relative phase between the time-like form factors of the proton is a crucial observable for a complete understanding of its internal structure, yet it has remained unmeasured d…