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Open AccessJournal ArticleDOI

First measurement of the total proton-proton cross-section at the LHC energy of √s = 7 TeV

TLDR
TOTEM has measured the differential cross-section for elastic proton-proton scattering at the LHC energy of analysing data from a short run with dedicated large-β* optics as discussed by the authors.
Abstract
TOTEM has measured the differential cross-section for elastic proton-proton scattering at the LHC energy of analysing data from a short run with dedicated large-β* optics. A single exponential fit with a slope B=(20.1±0.2stat±0.3syst) GeV−2 describes the range of the four-momentum transfer squared |t| from 0.02 to 0.33 GeV2. After the extrapolation to |t|=0, a total elastic scattering cross-section of (24.8±0.2stat±1.2syst) mb was obtained. Applying the optical theorem and using the luminosity measurement from CMS, a total proton-proton cross-section of (98.3±0.2stat±2.8syst) mb was deduced which is in good agreement with the expectation from the overall fit of previously measured data over a large range of center-of-mass energies. From the total and elastic pp cross-section measurements, an inelastic pp cross-section of was inferred.

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Journal ArticleDOI

Charged multiplicities in pp and AA collisions at LHC

TL;DR: In this article, the mid-rapidity charged particle multiplicities in pp and AA collisions at LHC energies are described in the framework of a generalized eikonal model with shadowing corrections incorporated in AA.
Journal ArticleDOI

On the rise of proton–proton cross-sections at high energies

TL;DR: The rise of total, elastic and inelastic hadronic cross sections at high energies is investigated by means of an analytical parametrization, with the exponent of the leading logarithm contribution as a free fit parameter as mentioned in this paper.
Journal ArticleDOI

Total hadronic cross section and the elastic slope: An almost model-independent connection

TL;DR: In this paper, an almost model-independent parametrization for the ratio of the total cross section to the elastic slope, as function of the center of mass energy, is introduced.
Journal ArticleDOI

Progress in the Glauber model at collider energies

TL;DR: The theoretical and experimental progress in the Glauber model of multiple nucleon and/or parton scatterings, after the last 10--15 years of operation with proton and nuclear beams at the CERN Large Hadron Collider (LHC) and with various light and heavy colliding ions at the BNL Relativistic Heavy Ion Collider (RHIC) are summarized in this paper.
References
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Review of particle physics

TL;DR: Beringer et al. as mentioned in this paper presented a review of particle physics using data from previous editions, plus 2658 new measurements from 644 papers, and summarized searches for hypothetical particles such as Higgs bosons, heavy neutrinos, and supersymmetric particles.
Journal ArticleDOI

Review of Particle Physics

Koji Nakamura, +183 more
- 07 Sep 2010 - 
TL;DR: In this article, a biennial review summarizes much of particle physics using data from previous editions, plus 2158 new measurements from 551 papers, they list, evaluate and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons.
Journal ArticleDOI

The TOTEM Experiment at the CERN Large Hadron Collider

G. Anelli, +115 more
TL;DR: The TOTEM Experiment as discussed by the authors measured the total pp cross-section with the luminosity-independent method and studied elastic and diffractive scattering at the LHC using two tracking telescopes, T1 and T2.
Journal ArticleDOI

Benchmarks for the forward observables at RHIC, the Tevatron-run II, and the LHC.

TL;DR: These predictions are based on an extensive study of possible analytic parametrizations invoking the largest hadronic dataset available at t=0.1 TeV, and on total cross sections for gammap-->hadrons at cosmic-ray energies and forgammagamma -->hadrons up to sqrt[s]=1 Tev.
Journal ArticleDOI

The energy dependence of the proton-proton total cross-section for centre-of-mass energies between 23 and 53 GeV

TL;DR: The absolute scale of the cross-section was established by determination of the effective density of the colliding beans in their overlap region as mentioned in this paper, which was deduced by extrapolation of the elastic differential crosssection to the forward direction and by application of the optical theorem.
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