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Advanced Search Results For "Birch, John G."

1 - 10 of 481 results for
 "Birch, John G."
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Constraints on Higgs boson properties using $$WW^{*}(\rightarrow e\nu \mu \nu )jj$$ W W ∗ ( → e ν μ ν ) j j production in $$36.1\,\mathrm{fb}^{-1}$$ 36.1 fb - 1 of $$\sqrt{s}=13$$ s = 13 TeV pp collisions with the ATLAS detector

Publication Type:Academic Journal

Source(s):European Physical Journal C: Particles and Fields, Vol 82, Iss 7, Pp 1-33 (2022)

Abstract:Abstract This article presents the results of two studies of Higgs boson properties using the $$WW^*(\rightarrow e\nu \mu \nu )jj$$ W W ∗ ( → e ν μ ν ) j j final state, based on a dataset corresponding to $${36.1}{{\mathrm{fb}}^{-1}}$$ 36.1 fb - 1 of $...

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Study of coherent J/ψ production in lead-lead collisions at s NN $$ \sqrt{{\mathrm{s}}_{\mathrm{NN}}} $$ = 5 TeV

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-19 (2022)

Abstract:Abstract Coherent production of J/ψ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about 1...

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Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at s $$ \sqrt{s} $$ = 13 TeV

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-73 (2022)

Abstract:Abstract Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and the other top quark decays into ℓνb are presented using 139 fb −1 of data collected by the ATLAS...

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Measurement of Higgs boson decay into b-quarks in associated production with a top-quark pair in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-63 (2022)

Abstract:Abstract The associated production of a Higgs boson and a top-quark pair is measured in events characterised by the presence of one or two electrons or muons. The Higgs boson decay into a b-quark pair is used. The analysed data, corresponding to an int...

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Search for neutral long-lived particles in pp collisions at s $$ \sqrt{s} $$ = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-49 (2022)

Abstract:Abstract A search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb −1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015–2018 at a centre-of-mass energy of 13 TeV. Dedicated techn...

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

Publication Type:Academic Journal

Source(s):European Physical Journal C: Particles and Fields, Vol 82, Iss 5, Pp 1-70 (2022)

Abstract:Abstract 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 using diverse measurements in pp collisions at $$\sqrt{s} = 7$$...

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Search for the decay B 0 → ϕμ + μ −

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 5, Pp 1-21 (2022)

Abstract:Abstract A search for the decay B 0 → ϕμ + μ − is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb −1. No evidence for the B 0...

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Observation of the doubly charmed baryon decay Ξ cc + + → Ξ c ′ + π + $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 5, Pp 1-18 (2022)

Abstract:Abstract The Ξ cc + + → Ξ c ′ + π + $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$ decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated lumino...

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Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-29 (2022)

Abstract:Abstract A study of B+ → J/ψηK+ decays, followed by J/ψ → μ+μ − and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosi...

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Measurement of the energy asymmetry in $$t{\bar{t}}j$$ t t ¯ j production at $$13\,$$ 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

Publication Type:Academic Journal

Source(s):European Physical Journal C: Particles and Fields, Vol 82, Iss 4, Pp 1-36 (2022)

Abstract:Abstract A measurement of the energy asymmetry in jet-associated top-quark pair production is presented using $$139\,{\mathrm {fb}}^{-1}$$ 139 fb - 1 of data collected by the ATLAS detector at the Large Hadron Collider during pp collisions at $$\sqrt{s...

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