Articles with "invariant mass" as a keyword



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Probing axial quark generalized parton distributions through exclusive photoproduction of a γπ± pair with a large invariant mass

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Published in 2018 at "Journal of High Energy Physics"

DOI: 10.1007/jhep11(2018)179

Abstract: A bstractExclusive photoproduction of a γπ± pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The… read more here.

Keywords: generalized parton; large invariant; pair large; photoproduction pair ... See more keywords
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Measurement of dielectron production in central Pb-Pb collisions at sNN=2.76TeV

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Published in 2019 at "Physical Review C"

DOI: 10.1103/physrevc.99.024002

Abstract: The first measurement of dielectron (e+e−) production in central (0–10%) Pb–Pb collisions at √ sNN = 2.76 TeV at the LHC is presented. The dielectron invariant-mass spectrum is compared to the expected contributions from hadron… read more here.

Keywords: gev; invariant mass; dielectron production; dielectron ... See more keywords
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Extending the search for new resonances with machine learning

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Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.99.014038

Abstract: The oldest and most robust technique to search for new particles is to look for ``bumps'' in invariant mass spectra over smoothly falling backgrounds. We present a new extension of the bump hunt that naturally… read more here.

Keywords: machine learning; invariant mass; search new; new resonances ... See more keywords
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Observation of a State X(2600) in the π^{+}π^{-}η' System in the Process J/ψ→γπ^{+}π^{-}η'.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.042001

Abstract: Based on (10087±44)×10^{6}  J/ψ events collected with the BESIII detector, the process J/ψ→γπ^{+}π^{-}η^{'} is studied using two largest decay channels of the η^{'} meson, η^{'}→γπ^{+}π^{-} and η^{'}→ηπ^{+}π^{-}, η→γγ. A new resonance, which we denote as the… read more here.

Keywords: observation state; state 2600; invariant mass; process ... See more keywords
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On the Interpretation of the CMS Excess at an Invariant Mass of the Muon Pair of 28 GeV in the Minimal Supersymmetry

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Published in 2020 at "Journal of Experimental and Theoretical Physics"

DOI: 10.1134/s1063776120120092

Abstract: The possibility of interpretation of the excess in the pp → μ+μ–b $$\bar {b}$$ channel observed by the CMS Collaboration (LHC, CERN) at an invariant mass of the muon pair of 28 GeV ( $$\sqrt… read more here.

Keywords: invariant mass; pair gev; muon pair; minimal supersymmetry ... See more keywords