2023
DOI: 10.1140/epjc/s10052-023-11436-8
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Measurement of the total cross section and $$\rho $$-parameter from elastic scattering in pp collisions at $$\sqrt{s}=13$$ TeV with the ATLAS detector

Abstract: In a special run of the LHC with $$\beta ^{\star } = 2.5$$ β ⋆ = 2.5  km, proton–proton elastic-scattering events were recorded at $$\sqrt{s} = 13$$ s = 13  TeV with an integrat… Show more

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Cited by 22 publications
(16 citation statements)
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References 51 publications
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“…Before the t-spectrum can be reconstructed, an alignment procedure has to be performed which mainly consists of an iterative procedure and a χ 2 -optimization [4]. For improving the results, a physics-driven alignment [1] is additionally required for this analysis. After the elastic scattering process, the outgoing protons are deflected by LHC quadrupole magnets.…”
Section: Reconstructionmentioning
confidence: 99%
See 1 more Smart Citation
“…Before the t-spectrum can be reconstructed, an alignment procedure has to be performed which mainly consists of an iterative procedure and a χ 2 -optimization [4]. For improving the results, a physics-driven alignment [1] is additionally required for this analysis. After the elastic scattering process, the outgoing protons are deflected by LHC quadrupole magnets.…”
Section: Reconstructionmentioning
confidence: 99%
“…The goal of this measurement campaign [1] is to study elastic proton-proton scattering, especially within the very interesting Coulomb-Nuclear-Interference (CNI) region. In order to study the energy evolution, for these runs special optics with large β ⋆ values of 2.5 km in combination with high center-of-mass energy of s = 13 TeV have been chosen which makes it possible to reach down to very small momentum-transfers as illustrated in Figure 1.…”
Section: Introductionmentioning
confidence: 99%
“…ALFA detectors were designed to study elastic scattering at the LHC energies. The recent ATLAS measurement [4] was performed at 13 TeV centre-of-mass energy with special settings of the LHC magnetic fields characterised by a β * value of 2500 m. Data taking in such conditions allows measurements of events with very small four-momentum transfer and gives access to the Coulomb-nuclear interference (CNI) region.…”
Section: Elastic Scattering In the Cni Regionmentioning
confidence: 99%
“…The analysis requires both scattered protons to be registered. The event selection is based on the correlations present in elastic events originating from the energy and momentum conservation: the positions of the two scattered protons measured in the detectors are anti- From [4].…”
Section: Elastic Scattering In the Cni Regionmentioning
confidence: 99%
“…The Standard Model (SM) of particle physics precisely predicts production cross sections over an impressive span of 15 orders of magnitude, all the way from recent total cross-section measurements [1] to the most rare processes under study today. Recent achievements include the observation of processes such as four-top-quark production [2,3], single-top-quark production in association with a photon 𝑡𝛾 [4], WW𝛾 [5], WZ𝛾 [6], W𝛾𝛾 production [7], and evidence of tWZ production [8].…”
Section: Introductionmentioning
confidence: 99%