A simple demonstration of Newton's laws

Грибов, Л. А.; Gornostaev, A N

doi:10.1070/pu1978v021n04abeh005542

Cited by 146 publications

(254 citation statements)

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“…However, perturbative QCD is inadequate for describing soft processes such as diffractive dissociation. Instead, the phenomenology of soft hadronic processes based on Gribov-Regge theory [1,2] has been employed to describe these processes at high energies. Therefore, it is extremely important to constrain the phenomenological parameters based on measurement data to obtain a correct understanding of the various diffractive processes and their accurate contribution to the total inelastic collisions.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo Study of Diffraction in Proton–Proton Collisions at \(\sqrt{s} \) = 13 TeV with the Very Forward Detector

Zhou

Itow

Sako

et al. 2018

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

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Accelerator is an efficient way to verify and improve the hadronic interaction models. Abundant of energy flow in the forward region of the collisions are believed to have large influence to the development of air-shower. Diffractive and non-diffractive collisions are totally different hadronic interaction processes, the diffractive processes are hardly predicted theoretically. This leads to the significant differences in the treatments of diffraction in the hadronic interaction model. Owing to the very forward detector has unique sensitivity to the diffractive processes, it can be a powerful detector for the detection of diffractive dissociation by combining with the central detector. Central detector can give the information to help the forward detector to identify diffractive and non-diffractive events, especially, for the low mass diffractions which are not measured precisely.

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Section: Introductionmentioning

confidence: 99%

Monte Carlo Study of Diffraction in Proton–Proton Collisions at \(\sqrt{s} \) = 13 TeV with the Very Forward Detector

Zhou

Itow

Sako

et al. 2018

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

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“…Figure 7, on the left panel, shows dN/dη integrated at midrapidity divided by the number of participants as a function of N part for various centrality estimators. For the V0A centrality estimator, in addition to the N part from the standard Glauber calculation, also those obtained with the implementation of Glauber-Gribov model [14] are shown. For the standard Glauber calculations, the charged particle density at midrapidity increases more than linearly, as a consequence of the strong multiplicity bias.…”

Section: A New Approach For Centrality Determinationmentioning

confidence: 99%

Scaling of charged particle production and centrality determination in p-Pb collisions at √s_NN= 5.02 TeV at ALICE

Oppedisano

2015

EPJ Web of Conferences

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Abstract. Proton-nucleus collisions are studied in order to disentangle initial state effects, already present in cold nuclear matter, from final state effects, that are associated to the hot and strongly interacting medium created in A-A collisions. However, after the 2013 p-Pb data taking at LHC, the importance of p-A collisions on their own has been acknowledged. Several measurements clearly showed that p-A collisions cannot simply be explained by an incoherent superposition of proton-nucleon collisions, but indicate the presence of coherent and collective effects, with a strong dependence on the collision geometry. These measurements pointed out the need for a detailed characterization of the collision geometry. Typically, parameters such as the number of binary collisions N coll or the number of participating nucleons N part are used to characterize the centrality. In nucleus-nucleus interactions the centrality is usually estimated by measuring the charged particle multiplicity. However, in contrast to A-A, in p-A collisions the large fluctuations in a much reduced multiplicity environment generate a dynamical bias in centrality classes based on particle multiplicity measurement. The centrality determination is critically addressed and a different approach to extract the average N coll values, needed to compare p-A to pp data, is presented. The centrality dependence of primary charged-particle production and of transverse momentum distributions in p-A collisions at √ s NN = 5.02 TeV measured by ALICE are presented. IntroductionProton-lead collisions are an essential component of the heavy ion programme at LHC. These collisions are needed as a baseline in the understanding of cold nuclear matter effects and therefore in the interpretation of the nucleus-nucleus data. However, the importance of p-Pb collisions at LHC on their own has soon been recognized. In fact several measurements [1]- [4] clearly indicate that p-Pb collisions can not be explained as a simple incoherent superposition of proton-nucleon collisions, but rather indicate the onset of collective effects with a strong collision geometry dependence. The study of key observables as a function of centrality poses a crucial focus on the centrality determination. One of the main observables used to study p-A collisions is the nuclear modification factor: R pA = dN p−Pb /dp T < N coll > ·dN pp /dp T (1) Article available at

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“…At sufficiently low x, unitarity constraints become important and a 'black body' limit is approached [ 28], in which the cross section reaches the geometrical bound given by the transverse proton size. This limit is characterised by Q 2 dependences which differ fundamentally from the usual logarithmic scaling violations, diffractive cross sections approaching 50% of the total and other new effects [ 29].…”

Section: Low X Strong Interaction Dynamicsmentioning

confidence: 99%

“…Leading twist diffraction has been related [ 28,42] to the leading twist component of the nuclear shadowing phenomenon, in which the exchanged virtual photon in an eA interaction scatters coherently from more than one nucleon. Measuring diffractive DIS together with nuclear structure functions (section 3.5) in the LHeC range therefore tests the unified picture of complex strong interactions and leads to a detailed understanding of the shadowing mechanism, possibly essential in interpreting saturation signatures in eA interactions.…”

Section: Diffractionmentioning

confidence: 99%

Deep inelastic scattering at the TeV energy scale and the LHeC project

Newman

2009

Nuclear Physics B - Proceedings Supplements

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A simple demonstration of Newton's laws

Cited by 146 publications

References 0 publications

Monte Carlo Study of Diffraction in Proton–Proton Collisions at \(\sqrt{s} \) = 13 TeV with the Very Forward Detector

Monte Carlo Study of Diffraction in Proton–Proton Collisions at \(\sqrt{s} \) = 13 TeV with the Very Forward Detector

Scaling of charged particle production and centrality determination in p-Pb collisions at √s_NN= 5.02 TeV at ALICE

Deep inelastic scattering at the TeV energy scale and the LHeC project

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A simple demonstration of Newton's laws

Cited by 146 publications

References 0 publications

Monte Carlo Study of Diffraction in Proton–Proton Collisions at \(\sqrt{s} \) = 13 TeV with the Very Forward Detector

Monte Carlo Study of Diffraction in Proton–Proton Collisions at \(\sqrt{s} \) = 13 TeV with the Very Forward Detector

Scaling of charged particle production and centrality determination in p-Pb collisions at √sNN= 5.02 TeV at ALICE

Deep inelastic scattering at the TeV energy scale and the LHeC project

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Product

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Scaling of charged particle production and centrality determination in p-Pb collisions at √s_NN= 5.02 TeV at ALICE