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hep-ex2026

Understanding Energy Dependent Hadronic Calorimeter Response from a Machine Learning Perspective

Shuai-Chun Wang, Huang-Ran Shen, Wan-Bing He +4

To meet the precision requirements of future high-energy physics experiments, improving the energy resolution of hadronic calorimeters remains a critical challenge. This work prese…

hep-ex2026

Measurement of the double Dalitz decay $η \to e^{+} e^{-} e^{+} e^{-}$

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

Using a data sample of $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detector, we study the rare double Dalitz decay of $η \to e^{+} e^{-} e^{+} e^{-}$ …

hep-ex2026

Amplitude Analysis of the Isospin-Violating Decay $J / ψ \to γ η π^{0}$

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

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we perform the first amplitude analysis of the process $J / ψ \to γ η π^{0}$ . The decay is dominated b…

hep-ex2026

A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for microscopic black holes, string balls, and electroweak sphalerons using proton-proton collisions at $s$ = 13 TeV recorded with the CMS detector at the CERN LHC…

hep-ex2026

Evidence of ZZ $γ$ production and observation of $4 ℓ γ$ in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

Evidence of the production of two Z bosons and a photon in proton-proton collisions is reported for the first time in CMS. The analysis uses data collected by the CMS experiment be…

hep-ex2026

Observation of $Λ_{c}^{+} \to n π^{+} η$ and search for $Λ_{c}^{+} \to n a_{0} (980)^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +719

By analysing 6.1 $fb^{- 1}$ of data collected at center-of-mass energies between $s = 4.600$ and 4.843 $GeV$ with the BESIII detector at the BEPCII collider, we obser…

Understanding Energy Dependent Hadronic Calorimeter Response from a Machine Learning Perspective

Measurement of the double Dalitz decay η→e+e−e+e−

Amplitude Analysis of the Isospin-Violating Decay J/ψ→γηπ0

A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at s​ = 13 TeV

Evidence of ZZγ production and observation of 4ℓγ in proton-proton collisions at s​ = 13 TeV

Observation of Λc+​→nπ+η and search for Λc+​→na0​(980)+

Measurement of the double Dalitz decay $η \to e^{+} e^{-} e^{+} e^{-}$

Amplitude Analysis of the Isospin-Violating Decay $J / ψ \to γ η π^{0}$

A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at $s$ = 13 TeV

Evidence of ZZ $γ$ production and observation of $4 ℓ γ$ in proton-proton collisions at $s$ = 13 TeV

Observation of $Λ_{c}^{+} \to n π^{+} η$ and search for $Λ_{c}^{+} \to n a_{0} (980)^{+}$