scholarly journals Quasielastic pion scattering near the (3,3) resonance. [255 MeV, differential cross section ratio]

1978 ◽  
Author(s):  
P. Varghese
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Cross Section Ratio ◽  
Pion Scattering ◽  
Section Ratio

scholarly journals Elastic differential cross-section measurement at $$\sqrt{s}=13$$ TeV by TOTEM

2019 ◽  
Vol 79 (10) ◽  
Author(s):  
G. Antchev ◽  
P. Aspell ◽  
I. Atanassov ◽  
V. Avati ◽  
J. Baechler ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Cross Section Ratio ◽  
Beam Optics ◽  
Proton Proton ◽  
Section Measurement ◽  
Elastic Proton ◽  
Efficient Data ◽  
Elastic Differential Cross Section

Abstract The TOTEM collaboration has measured the elastic proton-proton differential cross section $$\mathrm{d}\sigma /\mathrm{d}t$$dσ/dt at $$\sqrt{s}=13$$s=13 TeV LHC energy using dedicated $$\beta ^{*}=90$$β∗=90 m beam optics. The Roman Pot detectors were inserted to 10$$\sigma $$σ distance from the LHC beam, which allowed the measurement of the range [0.04 GeV$$^{2}$$2; 4 GeV$$^{2}$$2$$]$$] in four-momentum transfer squared |t|. The efficient data acquisition allowed to collect about 10$$^{9}$$9 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 $$B=(20.40 \pm 0.002^{\mathrm{stat}} \pm 0.01^{\mathrm{syst}})~$$B=(20.40±0.002stat±0.01syst)GeV$$^{-2}$$-2 in the |t|-range 0.04–0.2 GeV$$^{2}$$2. The dip position is $$|t_{\mathrm{dip}}|=(0.47 \pm 0.004^{\mathrm{stat}} \pm 0.01^{\mathrm{syst}})~$$|tdip|=(0.47±0.004stat±0.01syst)GeV$$^{2}$$2. The differential cross section ratio at the bump vs. at the dip $$R=1.77\pm 0.01^{\mathrm{stat}}$$R=1.77±0.01stat 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.

Energy unresolved differential cross section for electron scattering by H2

1982 ◽  
Vol 77 (3) ◽  
pp. 1323-1334 ◽  
Author(s):  
Wl/odzimierz Kol/os ◽  
Hendrik J. Monkhorst ◽  
Krzysztof Szalewicz
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Electron Scattering ◽  
Differential Cross
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