Precision measurements of antiproton-proton forward elastic scattering parameters in the 3.7 to 6.2 GeV/c region

Armstrong, T. A.; Bettoni, D.; Bharadwaj, V.; Biino, C.; Blanford, G.; Borreani, G.; Broemmelsiek, D.; Buzzo, A.; Calabrese, R.; Ceccucci, A.; Cester, R.; Church, M.; Dalpiaz, P.; Dibenedetto, R.; Dimitroyannis, D.; Fabbri, M.; Fast, J. E.; Gianoli, A.; Ginsburg, C. M.; Gollwitzer, K.; Govi, G.; Hahn, A.; Hasan, M. A.; Hsueh, S.; Lewis, R. A.; Luppi, E.; Macrı́, M.; Majewska, A. M.; Mandelkern, M.; Marchetto, F.; Marinelli, M.; Marques, J.; Marsh, W.; Martini, M.; Masuzawa, M.; Menichetti, E.; Migliori, A.; Mussa, R.; Palestini, S.; Pallavicini, M.; Passagio, S.; Pastrone, N.; Patrignani, C.; Pedlar, T. K.; Peoples, J.; Pesando, L.; Petrucci, F.; Pia, M.G.; Pordes, S.; Rapidis, P. A.; Ray, R.; Reid, John D.; Rinaudo, G.; Robutti, E.; Roccuzzo, B.; Rosen, J.; Santroni, A.; Sarmiento, M.; Savrié, M.; Schultz, J.; Seth, K. K.; Smith, A.; Smith, Gerald A.; Sozzi, M.; Trokenheim, S.; Weber, M. F.; Werkema, S.; Zhang, Y.; Zhao, Jing; Zioulas, G.

doi:10.1016/0370-2693(96)01026-x

Cited by 19 publications

(9 citation statements)

References 17 publications

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“…The data on proton-antiproton elastic scattering at 3.7 < p L < 6.2 (GeV /c) are most interesting. These experimental data have high accuracies and give the extracted value of ρ(s) with high precision [18]. On Fig.1(b) these data are shown together with other experimental data and the predictions of the dispersion analysis carried out by Kroll [1].…”

Section: Introductionsupporting

confidence: 52%

“…Equations (15) were applied at high energies and at small momentum transfer, with the following usual assumptions for helicity amplitudes: φ 1 = φ 3 , φ 2 = φ 4 = 0 ; and, as usual, we neglect in this section the possible contribution of the spin-flip amplitude. We now compare fits to the experimental pp-scattering [18,31,32,33] data at low energies with different approximations for the Coulomb-hadron interference phase factor (see also [34]). Here we also include the additional normalization of the differential cross sections n which reflects the systematical errors of the luminosity.…”

Section: Impact Of the Coulomb-hadron Interference Phasementioning

confidence: 99%

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THE EFFECTS OF THE SMALL-t PROPERTIES OF HADRONIC SCATTERING AMPLITUDE ON THE DETERMINATION OF ITS REAL PART

Selyugin

2012

Mod. Phys. Lett. A

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Taking into account the different forms of the Coulomb-hadron interference phase and the possible spin-flip contribution the new analysis of the experimental data of the proton-antiproton elastic scattering at 3.8 < p L < 6.0 GeV/c and small momentum transfer is carried out. It is shown that the size of the spin-flip amplitude can be determined from the form of the differential cross sections at small t, and the deviation of ρ(s, t) obtained from the examined experimental data of the pp scattering from the analysis [1], based on the dispersion relations, is conserved in all examined assumptions. The analysis of the proton-proton elastic scattering at 9 < p L < 70 GeV/c also shows the impact of the examined effects on the form of the differential cross sections.

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Section: Introductionsupporting

confidence: 52%

Section: Impact Of the Coulomb-hadron Interference Phasementioning

confidence: 99%

THE EFFECTS OF THE SMALL-t PROPERTIES OF HADRONIC SCATTERING AMPLITUDE ON THE DETERMINATION OF ITS REAL PART

Selyugin

2012

Mod. Phys. Lett. A

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“…Cross section data for elastic antiproton proton scattering at a beam momentum of 3.7 GeV/c[31] (upper part) and analyzing power of proton-proton scattering[24] (lower part) as a function of the four momentum transfer t. The data for the analyzing power have been taken with a proton beam momentum of 100 GeV/c at a polarized atomic hydrogen target. The analyzing power of antiproton scattering is of the same size with opposite sign.…”

mentioning

confidence: 99%

Search for Polarization Effects in the Antiproton Production Process

Grzonka¹,

Kilian²,

Ritman³

et al. 2015

Acta Phys. Pol. B

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For the production of a polarized antiproton beam various methods (1) 2 polpbar printed on October 11, 2018 have been suggested including the possibility that antiprotons may be produced polarized which will be checked experimentally. The polarization of antiprotons produced under typical conditions for antiproton beam preparation will be measured at the CERN/PS. If the production process creates some polarization a polarized antiproton beam could be prepared by a rather simple modification of the antiproton beam facility. The detection setup and the expected experimental conditions are described.

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“…The antiproton-proton elastic scattering with conventional parameterization can be described in terms of the Coulomb and nuclear amplitudes, f c and f n , by means of dispersion relations. At small t one obtains [12,13]…”

Section: Principle Of the Conceptmentioning

confidence: 99%

A recoil detector for the measurement of antiproton-proton elastic scattering at angles close to 90°

Hu¹,

Bechstedt²,

Gillitzer³

et al. 2014

Eur. Phys. J. A

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Abstract. The design and construction of a recoil detector for the measurement of recoil protons of antiproton-proton elastic scattering at scattering angles close to 90• are described. The performance of the recoil detector has been tested in the laboratory with radioactive sources and at COSY with proton beams by measuring proton-proton elastic scattering. The results of laboratory tests and commissioning with beam are presented. Excellent energy resolution and proper working performance of the recoil detector validate the conceptual design of the KOALA experiment at HESR to provide the cross section data needed to achieve a precise luminosity determination at the PANDA experiment.

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Precision measurements of antiproton-proton forward elastic scattering parameters in the 3.7 to 6.2 GeV/c region

Cited by 19 publications

References 17 publications

THE EFFECTS OF THE SMALL-t PROPERTIES OF HADRONIC SCATTERING AMPLITUDE ON THE DETERMINATION OF ITS REAL PART

THE EFFECTS OF THE SMALL-t PROPERTIES OF HADRONIC SCATTERING AMPLITUDE ON THE DETERMINATION OF ITS REAL PART

Search for Polarization Effects in the Antiproton Production Process

A recoil detector for the measurement of antiproton-proton elastic scattering at angles close to 90°

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