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Open AccessJournal ArticleDOI

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

Georgy Antchev, +82 more
- 01 Oct 2011 - 
- Vol. 96, Iss: 2, pp 21002-21012
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

Amplitudes and observables in pp elastic scattering at $\sqrt{s}=7\ \mbox{TeV}$

Anderson Kendi Kohara, +2 more
- 26 Feb 2013 - 
TL;DR: In this article, a precise analysis of the pp elastic scattering data at 7 TeV in terms of its amplitudes is performed as an extension of previous studies for lower energies, where the real and imaginary amplitudes are independent quantities, and a proper expression for the Coulomb phase is used.

MBR Monte Carlo Simulation in PYTHIA8

Robert Ciesielski, +1 more
TL;DR: In this article, the authors present the MBR (Minimum Bias Rockefeller) Monte Carlo simulation of (anti)proton-proton interactions and its implementation in the PYTHIA8 event generator.
Journal ArticleDOI

Excitation function of elastic pp scattering from a unitarily extended Bialas–Bzdak model

F. Nemes, +3 more
- 16 Apr 2015 - 
TL;DR: In this paper, the Bialas-Bzdak model of elastic proton-proton scattering is extended to arbitrarily large real parts in a way that constraints from unitarity are satisfied.
Journal ArticleDOI

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

D. A. Fagundes, +2 more
- 16 Aug 2012 - 
TL;DR: In this article, the rise of the 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.
Journal ArticleDOI

Measurement of the Zγ→νν‾γ production cross section in pp collisions at s=8 TeV and limits on anomalous ZZγ and Zγγ trilinear gauge boson couplings

Vardan Khachatryan, +2301 more
- 10 Sep 2016 - 
TL;DR: In this paper, a measurement of the Z gamma to nu nu-bar gamma production cross section in pp collisions at squarert(s) = 8 TeV is presented, using data corresponding to an integrated luminosity of 19.6 inverse-femtobarns collected with the CMS detector at the LHC.
References
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Journal ArticleDOI

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Ugo Amaldi, +9 more
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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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