[HTML][HTML] Elastic differential cross-section measurement at TeV by TOTEM
G Antchev, P Aspell, I Atanassov, V Avati… - The European Physical …, 2019 - Springer
G Antchev, P Aspell, I Atanassov, V Avati, J Baechler, CB Barrera, V Berardi, M Berretti…
The European Physical Journal C, 2019•SpringerThe TOTEM collaboration has measured the elastic proton-proton differential cross
section\(\mathrm {d}\sigma/\mathrm {d} t\) at\(\sqrt {s}= 13\) TeV LHC energy using
dedicated\(\beta^{*}= 90\) m beam optics. The Roman Pot detectors were inserted to
10\(\sigma\) distance from the LHC beam, which allowed the measurement of the range
[0.04 GeV\(^{2}\); 4 GeV\(^{2}\)\(]\) in four-momentum transfer squared| t|. The efficient data
acquisition allowed to collect about 10\(^{9}\) elastic events to precisely measure the …
section\(\mathrm {d}\sigma/\mathrm {d} t\) at\(\sqrt {s}= 13\) TeV LHC energy using
dedicated\(\beta^{*}= 90\) m beam optics. The Roman Pot detectors were inserted to
10\(\sigma\) distance from the LHC beam, which allowed the measurement of the range
[0.04 GeV\(^{2}\); 4 GeV\(^{2}\)\(]\) in four-momentum transfer squared| t|. The efficient data
acquisition allowed to collect about 10\(^{9}\) elastic events to precisely measure the …
Abstract
The TOTEM collaboration has measured the elastic proton-proton differential cross section at TeV LHC energy using dedicated m beam optics. The Roman Pot detectors were inserted to 10 distance from the LHC beam, which allowed the measurement of the range [0.04 GeV; 4 GeV in four-momentum transfer squared| t|. The efficient data acquisition allowed to collect about 10 elastic events to precisely measure the differential cross-section including the diffractive minimum (dip), the subsequent maximum (bump) and the large-| t| tail. The average nuclear slope has been found to be GeV in the| t|-range 0.04–0.2 GeV. The dip position is GeV. The differential cross section ratio at the bump vs. at the dip has been measured with high precision. The series of TOTEM elastic pp measurements show that the dip is a permanent feature of the pp differential cross-section at the TeV scale.
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