Large-Angle Proton-Proton Elastic Scattering at Intermediate Momenta

Kammerud, R.; Brabson, B.; Crittenden, R.R.; Heinz, R.; Neal, H. A.; Paik, H.W.; Sidwell, R. A.

doi:10.1103/physrevd.4.1309

Cited by 51 publications

(27 citation statements)

References 25 publications

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“…Proton-proton elashc-scattermg data which extend to large angles have been reported by Clyde et al [7], Allaby et al [8], Kammerud et al [9] and Ankenbrandt et al [I0], over the momentum range from 3 to 24 GeV/c. Below 7 GeV/c the dffferentml cross sections show no structure and decrease smoothly as Itl increases.…”

Section: Summary Of Previous Experimental Datamentioning

confidence: 61%

Large angle neutron-proton elastic scattering from 5 to 12 GeV/c

et al. 1978

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This paper describes a measurement of the neutron-proton differential cross section made at the Argonne National Laboratory Zero Gradient Synchrotron The differentml cross sections, based on about 470 000 events, are presented for 8 different momentum ranges between 4.5 and 12.5 GeV/c The data extend from small angles out to about 145 ° m the c.m s, corresponding to 0 14 < -t <~ 19 (GeV/c) 2 at the highest energies. These results in conjunction with previous np charge-exchange data provide almost complete angular distributions m this momentum range. A detatled comparison of the data with existing pp data and with theoretical pred:ctlons is made * A brief report of these results and thetr interpretation appeared in J L Stone et al, Phys Rev Lett 38 (1977) 1315, 1317

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Section: Summary Of Previous Experimental Datamentioning

confidence: 61%

Large angle neutron-proton elastic scattering from 5 to 12 GeV/c

et al. 1978

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“…• center-of-mass pp elastic scattering data s 10 dσ/dt show substantial oscillations about the power-law behavior [26][27][28][29]. Such oscillations are also seen in πp fixed-angle scattering [30][31][32].…”

Section: Introduction a Scaling Laws In Qcd And Experimental Datamentioning

confidence: 99%

Determination of the beam-spin asymmetry of deuteron photodisintegration in the energy regionEγ=1.1–2.3 GeV

Zachariou¹,

Ilieva²,

Berman³

et al. 2015

Phys. Rev. C

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The beam-spin asymmetry, Σ, for the reaction γd → pn has been measured using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility (JLab) for six photon-energy bins between 1.1 and 2.3 GeV, and proton angles in the center-of-mass frame, θc.m., between 25• and 160• . These are the first measurements of beam-spin asymmetries at θc.m. = 90• for photon-beam energies above 1.6 GeV, and the first measurements for angles other than θc.m. = 90• . The angular and energy dependence of Σ is expected to aid in the development of QCD-based models to understand the mechanisms of deuteron photodisintegration in the transition region between hadronic and partonic degrees of freedom, where both effective field theories and perturbative QCD cannot make reliable predictions.

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“…eqs. (20,21) in [23]). Note that non-strange baryon resonances besides the Δ(1232) are not included in PYTHIA.…”

Section: The Datamentioning

confidence: 99%

“…1, is the result of a subtraction of the CB from the unlike-sign invariant-mass distribution. Both spectra are normalized to N denote the measured yield of the p+p elastic scattering and the differential elastic crosssection [20] inside the acceptance of HADES, respectively.…”

Section: The Datamentioning

confidence: 99%

Inclusive dielectron spectra in p+p collisions at 3.5 GeV kinetic beam energy

Agakishiev¹,

Bałanda²,

Belver³

et al. 2012

Eur. Phys. J. A

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Abstract. We present the inclusive invariant mass, transverse momentum and rapidity distributions of dielectrons (e + e − pairs) in p+p interactions at 3.5 GeV beam kinetic energy. In the vector meson mass region, a distinct peak corresponding to direct ω decays is reconstructed with a 2% mass resolution. The data is compared to predictions from three model calculations. Due to the large acceptance of the HADES apparatus for e + e − invariant masses above 0.2 GeV/c 2 and for transverse pair momenta pt < 1 GeV/c, acceptance corrections are, to a large extent, model independent. This allows us to extract from dielectron data for the first time at this energy the inclusive production cross-sections for light vector mesons. Inclusive production cross-sections for π 0 and η mesons are also reported. The obtained results will serve as an important reference for the study of vector meson production in proton-nucleus and heavy-ion collisions. Furthermore, using this data, an improved value for the upper bound of the branching ratio for direct η decays into the electron-positron channel is obtained.Eur. Phys. J. A (2012) 48: 64

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Large-Angle Proton-Proton Elastic Scattering at Intermediate Momenta

Cited by 51 publications

References 25 publications

Large angle neutron-proton elastic scattering from 5 to 12 GeV/c

Large angle neutron-proton elastic scattering from 5 to 12 GeV/c

Determination of the beam-spin asymmetry of deuteron photodisintegration in the energy regionEγ=1.1–2.3 GeV

Inclusive dielectron spectra in p+p collisions at 3.5 GeV kinetic beam energy

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