Benchmarks for the Forward Observables at RHIC, the Tevatron-Run II, and the LHC

Cudell, Jean-René; Ежела, В. В.; Gauron, P.; Kang, Kyungsik; Kuyanov, Yu.V.; Lugovsky, S. B.; Martynov, Y.; Nicolescu, B.; Razuvaev, E.A.; Ткаченко, Н. П.

doi:10.1103/physrevlett.89.201801

Cited by 210 publications

(210 citation statements)

References 22 publications

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“…The contribution of events with all final state particles at j j > 6:5 is estimated with QGSJET-II-03 after tuning the Monte Carlo prediction with [8,[20][21][22][23][24] of the total ( tot ), inelastic ( inel ) and elastic ( el ) cross-section measurements: the TOTEM measurements described in this Letter are highlighted. The continuous black lines (lower for pp, upper for pp) represent the best fits of the total cross-section data by the COMPETE collaboration [19]. The dashed line results from a fit of the elastic scattering data.…”

Section: H Y S I C a L R E V I E W L E T T E R Smentioning

confidence: 99%

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Luminosity-Independent Measurement of the Proton-Proton Total Cross Section ats=8 TeV

Antchev¹,

Aspell²,

Orava³

et al. 2013

Phys. Rev. Lett.

221

111

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The TOTEM collaboration has measured the proton-proton total cross section at ffiffi ffi s p ¼ 8 TeV using a luminosity-independent method. In LHC fills with dedicated beam optics, the Roman pots have been inserted very close to the beam allowing the detection of $90% of the nuclear elastic scattering events. Simultaneously the inelastic scattering rate has been measured by the T1 and T2 telescopes. By applying the optical theorem, the total proton-proton cross section of ð101:7 AE 2:9Þ mb has been determined, well in agreement with the extrapolation from lower energies. This method also allows one to derive the luminosity-independent elastic and inelastic cross sections: el ¼ ð27:1 AE 1:4Þ mb; inel ¼ ð74:7 AE 1:7Þ mb.

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Section: H Y S I C a L R E V I E W L E T T E R Smentioning

confidence: 99%

“…yielding the following luminosity-independent measurement: tot ¼ ð101:7 AE 2:9Þ mb: The parameter (the ratio of the real to the imaginary part of the forward nuclear elastic amplitude) is assumed to be ¼ 0:140 AE 0:007 from the COMPETE [19] preferredmodel extrapolation.…”

Section: H Y S I C a L R E V I E W L E T T E R Smentioning

confidence: 99%

Luminosity-Independent Measurement of the Proton-Proton Total Cross Section ats=8 TeV

Antchev¹,

Aspell²,

Orava³

et al. 2013

Phys. Rev. Lett.

221

111

View full text Add to dashboard Cite

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“…Figure 4 shows the result of extrapolations to 250 TeV in the center of mass, using three functional fits (the QCD inspired fit by BHS [20], the COMPETE collaboration fit [21], and the L γ fit by Menon and Silva [22]). This figure indicates that the uncertainty in cross section is 8% at 10 19.5 eV.…”

Section: Proton -Air Total Cross Sectionmentioning

confidence: 99%

“…The results by cosmic ray detectors are also included [24,[27][28][29][30]. The solid line is the QCD inspired fit [20], the dashed line is the COMPETE collaboration fit [21] and the dotted line is the L γ fit by Menon and Silva [22] .…”

Section: Proton -Air Total Cross Sectionmentioning

confidence: 99%

$\langle X_{\text{max}} \rangle $ Uncertainty from Extrapolation of Cosmic Ray Air Shower Parameters

Abbasi

Thomson

2018

Proceedings of 2016 International Conference on Ultra-High Energy Cosmic Rays (UHECR2016)

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In this work we investigate the uncertainties in the prediction of the average shower maximum, < X max >, by the currently used high energy cosmic ray shower simulation models. Recent measurements at the LHC have provided constrains on some of the parameters in these models. However, uncertainties in the prediction of < X max > remain due to extrapolation from accelerator data up to center of mass of 250 TeV. The extrapolation in the elasticity, multiplicity, and p-p cross section from the LHC energy range to 3 × 10 19 eV in a cosmic ray's lab frame is investigated in this proceeding. Our calculation of the uncertainty in < X max > is approximately equal to the difference among the modern models being used in the field.

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“…-If ρ cannot be measured, the uncertainty in its prediction (e.g. ρ = 0.1361 ± 0.0015 +0.0058 −0.0025 [10]) will contribute another 0.2 %.…”

Section: Total Pp and Pp Cross-sectionmentioning

confidence: 99%

Diffraction and Total Cross-Section at the Tevatron and the LHC

Deile¹,

Aurola²,

Brücken³

et al.

Hadron Collider Physics 2005

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Abstract. At the Tevatron, the total pp cross-section has been measured by CDF at 546 GeV and 1.8 TeV, and by E710/E811 at 1.8 TeV. The two results at 1.8 TeV disagree by 2.6 standard deviations, introducing big uncertainties into extrapolations to higher energies. At the LHC, the TOTEM collaboration is preparing to resolve the ambiguity by measuring the total pp cross-section with a precision of about 1 %. Like at the Tevatron experiments, the luminosity-independent method based on the Optical Theorem will be used. The Tevatron experiments have also performed a vast range of studies about soft and hard diffractive events, partly with antiproton tagging by Roman Pots, partly with rapidity gap tagging. At the LHC, the combined CMS/TOTEM experiments will carry out their diffractive programme with an unprecedented rapidity coverage and Roman Pot spectrometers on both sides of the interaction point. The physics menu comprises detailed studies of soft diffractive differential cross-sections, diffractive structure functions, rapidity gap survival and exclusive central production by Double Pomeron Exchange.

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Benchmarks for the Forward Observables at RHIC, the Tevatron-Run II, and the LHC

Cited by 210 publications

References 22 publications

Luminosity-Independent Measurement of the Proton-Proton Total Cross Section ats=8 TeV

Luminosity-Independent Measurement of the Proton-Proton Total Cross Section ats=8 TeV

\(\langle X_{\text{max}} \rangle \) Uncertainty from Extrapolation of Cosmic Ray Air Shower Parameters

Diffraction and Total Cross-Section at the Tevatron and the LHC

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