L.L. Ma

activity

20032026

e^{+} e^{-} \to π^{+} π^{-}

Cross Section between 600 and 900 MeV Using Initial State Radiation

253 citations · 4.5k across the 293 of their papers we have counts for

collaborators

Showing 2021Show all

9 papers · 1 filter

hep-ex2021

Determination of the parton distribution functions of the proton using diverse ATLAS data from $pp$ collisions at $s = 7$ , 8 and 13 TeV

ATLAS Collaboration

This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions…

hep-ex2021★ 3 cited

Observation of $J / ψ$ decays to $e^{+} e^{-} e^{+} e^{-}$ and $e^{+} e^{-} μ^{+} μ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +543

Using a data sample of $4.481 \times 1 0^{8} ψ^{'}$ events collected with the BESIII detector, we report the first observation of the four-lepton-decays $J / ψ \to e^{+} e^{-} e^{+} e^{-}$ and $J…

hep-ex2021★ 10 cited

Observation of the suppressed $Λ_{b}^{0} \to D p K^{-}$ decay with $D \to K^{+} π^{-}$ and measurement of its $C P$ asymmetry

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

A study of $Λ_{b}^{0}$ baryon decays to the $D p K^{-}$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb $^{- 1}$ col…

hep-ex2021★ 24 cited

Measurement of the production cross section of pairs of isolated photons in $pp$ collisions at 13 TeV with the ATLAS detector

ATLAS Collaboration

A measurement of prompt photon-pair production in proton-proton collisions at $s = 13$ TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integr…

hep-ex2021★ 17 cited

Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents

ATLAS Collaboration

Non-ionizing energy loss causes bulk damage to the silicon sensors of the ATLAS pixel and strip detectors. This damage has important implications for data-taking operations, charge…

hep-ex2021★ 92 cited

New Features in the Electromagnetic Structure of the Neutron

M. Ablikim, M. N. Achasov, P. Adlarson +504

Here we present new results for the Born cross section and the effective form factor of the neutron at the center-of-mass energies $s$ between 2.0 and 3.08 GeV, using…

Determination of the parton distribution functions of the proton using diverse ATLAS data from pp collisions at s​=7, 8 and 13 TeV

Observation of J/ψ decays to e+e−e+e− and e+e−μ+μ−

Observation of the suppressed Λb0​→DpK− decay with D→K+π− and measurement of its CP asymmetry

Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector

Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents

New Features in the Electromagnetic Structure of the Neutron

Determination of the parton distribution functions of the proton using diverse ATLAS data from $pp$ collisions at $s = 7$ , 8 and 13 TeV

Observation of $J / ψ$ decays to $e^{+} e^{-} e^{+} e^{-}$ and $e^{+} e^{-} μ^{+} μ^{-}$

Observation of the suppressed $Λ_{b}^{0} \to D p K^{-}$ decay with $D \to K^{+} π^{-}$ and measurement of its $C P$ asymmetry

Measurement of the production cross section of pairs of isolated photons in $pp$ collisions at 13 TeV with the ATLAS detector