Early Tests of Scale Invariance in High-Energy Muon Scattering

Fox, D.; Chang, C. Y.; Chen, K. W.; Kotlewski, A.; Kunz, P.; Hand, L. N.; Herb, S. W.; Loken, S.; Russell, A. D.; Watanabe, Yasushi; Vernon, W.; Strovink, M.

doi:10.1103/physrevlett.33.1504

Cited by 60 publications

(29 citation statements)

References 6 publications

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“…with the fine structure constant denoted α and f (y) = y 2 /[1 + (1 − y) 2 ]. The inelasticity y is related to Q 2 , x and the centre-of-mass energy squared, s = 4E e E p , by y = Q 2 /sx.…”

Section: Definitionsmentioning

confidence: 99%

“…For Q 2 2 GeV 2 , as the strong coupling constant α s (Q 2 ) increases, the higher order corrections to the perturbative expansion become large and lead to the breakdown of the pQCD calculations. Measurements at low Q 2 and low x thus probe this transition in which quarks and gluons cease to be relevant degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

“…Since the discovery of Bjorken scaling [1] and its violation [2] at fixed target experiments, DIS measurements have made essential contributions to the development of the theory of strong interactions, Quantum Chromodynamics (QCD). Major progress in the exploration of strong interactions has been achieved at the electron 1 -proton collider HERA, operating at the energy frontier.…”

Section: Introductionmentioning

confidence: 99%

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Measurement of the inclusive ep scattering cross section at low Q2 and x at HERA

Aaron¹,

Alexa²,

Andreev³

et al. 2009

Eur. Phys. J. C

102

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Section: Definitionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Measurement of the inclusive ep scattering cross section at low Q2 and x at HERA

Aaron¹,

Alexa²,

Andreev³

et al. 2009

Eur. Phys. J. C

102

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“…Since the discovery of Bjorken scaling [1] and its violation [2] at fixed target experiments, much progress has been made in extending the kinematic range of measurements in terms of the Bjorken variable x and the modulus of four-momentum transfer squared Q 2 . The H1 and ZEUS experiments at the HERA ep collider have shown that the Q 2 evolution of the proton structure function F 2 (x, Q 2 ) is well described by perturbative QCD (pQCD) throughout a wide range in x and Q 2 [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Measurement of the proton structure function F2 (x, Q2) in the low-x region at HERA

Abt¹,

Ahmed²,

Andreev³

et al. 1993

Nuclear Physics B

251

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The proton structure function F 2 (x, Q 2 ) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access the kinematic range of very low virtualities of the exchanged photon, Q 2 , down to 0.5 GeV 2 , and Bjorken x up to ∼0.06, a region which has not been covered previously by inclusive measurements at HERA. The results are in agreement with the measurements from fixed target lepton-nucleon scattering experiments.

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“…The smallness of R = σ L /σ T , the ratio of the cross sections from longitudinally and transversally polarised virtual photon scattering measured in DIS [ 3], provided the first evidence of the spin-1/2 nature of the partons. In 1974 in µN interactions [ 4] and in subsequent neutrino and muon-nucleon scattering experiments, the observation of scaling violation and the identification of partons as quarks and gluons has confirmed the field theory of quarks and gluons and their strong interactions, Quantum Chromodynamics (QCD).…”

Section: Introductionmentioning

confidence: 91%