N. Berger

activity

20242026

collaborators

13 papers

hep-ex2026

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

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

Based on $(8998 \pm 40) \times 1 0^{6}$ $J / ψ$ events collected in $e^{+} e^{-}$ collisions at $s = 3.097$ GeV with the BESIII detector, we present a search for the charged lepton flavou…

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-ex2025

Measurement of $t$ -channel single-top-quark production in $pp$ collisions at $s = 5.02$ TeV with the ATLAS detector

ATLAS Collaboration

The observation of the electroweak production of single-top-quarks is made using 255 $pb^{- 1}$ of proton-proton collision data recorded at $s = 5.02$ TeV with the ATL…

hep-ex2025

Measurement of the branching fraction of the decay $J / I ¨ \to p p ˉ I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

A high precision measurement of the branching fraction of the decay $J / I ¨ \to p p ˉ I^\cdot$ is performed using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events recorded by the {BESIII} d…

hep-ex2025

Observation and branching fraction measurement of the decay $J / I ¨ \to p ˉ I^£^{+} K_{S}^{0} + c . c .$

M. Ablikim, M. N. Achasov, P. Adlarson +612

The first observation of the decays $J / I ¨ \to p ˉ I^£^{+} K_{S}^{0}$ and $J / I ¨ \to p I^ˉ £^{-} K_{S}^{0}$ is reported using $(10087 \pm 44) \times 1 0^{6}$ $J\…

hep-ex2025

Cross section measurement of $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ and search for $e^{+} e^{-} \to I^\cdot X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same da…

Search for the charged lepton flavour violating decay η′→eμ

Proof of principle for nucleon polarization measurement at BESIII

Measurement of t-channel single-top-quark production in pp collisions at s​=5.02 TeV with the ATLAS detector

Measurement of the branching fraction of the decay J/I¨→ppˉ​I^⋅

Observation and branching fraction measurement of the decay J/I¨→pˉ​I^£+KS0​+c.c.

Cross section measurement of e+e−→I^⋅I¨(2S) and search for e+e−→I^⋅X~(3872)

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

Measurement of $t$ -channel single-top-quark production in $pp$ collisions at $s = 5.02$ TeV with the ATLAS detector

Measurement of the branching fraction of the decay $J / I ¨ \to p p ˉ I^\cdot$

Observation and branching fraction measurement of the decay $J / I ¨ \to p ˉ I^£^{+} K_{S}^{0} + c . c .$

Cross section measurement of $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ and search for $e^{+} e^{-} \to I^\cdot X ~ (3872)$