Abstract
Gluon scattering processes are studied in hadronic highp T events using data obtained with the Split Field Magnet detector (SFM) at the CERN ISR. The experimental set-up allowed the scanning of a wide range of parton energies and scattering angles. It is shown that for positive pions as trigger particles, the parton composition of the recoil jet is correlated with the polar angle and transverse momentum of the triggering pion. Over the kinematical region studied, the recoil jet originates predominantly from scatered gluons, with an increasing prevalence of the gluon component towards forward triggering angles. The variation of the momentum structure of the recoil jet with the trigger angle indicates that the fragmentation function of gluons is softer than that of quarks.
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References
R.P. Feynman et al.: Phys. Rev.D18, 3320 (1978); R.D. Field: Phys. Rev.D27, 546 (1983)
M. Della Negra et al.: Nucl. Phys.B127, 1 (1977)
A. Breakstone et al.: Z. Phys. C — Particles and Fields23, 9 (1984)
A. Breakstone et al.: Z. Phys. C — Particles and Fields25, 21 (1984); A. Breakstone et al.: Z. Phys. C — Particles and Fields27, 205 (1985); A. Breakstone et al.: Z. Phys. C — Particles and Fields28, 335 (1985)
M. Glück, E. Reya: Phys. Lett.98B, 444 (1981)
D. Drijard et al.: Nucl. Phys.B208, 1 (1982)
H.G. Fischer: Proc. Int. Conf. on High Energy Physics, Lisbon (1981) 297; J.L. Alonso et al.: Z. Phys. C — Particles and Fields6, 21 (1980); A.L.S. Angelis et al.: Nucl. Phys.B209, 284 (1982)
A. Breakstone et al.: Z. Phys. C — Particles and Fields23, 9 (1984); W. Herr: Ph.D. Thesis, Heidelberg (1985) unpublished
D. Drijard et al.: Phys. Lett.121B, 433 (1983); T. Lohse: Diploma Thesis, Dortmund (1982) unpublished
P. Allen et al.: Nucl. Phys.B214, 369 (1983)
G. Arnison et al.: Nucl. Phys.B276, 253 (1986)
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University of Heidelberg, FRG
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Breakstone, A., Campanini, R., Crawley, H.B. et al. A study of gluon scattering and gluon fragmentation in highp T interactions at the ISR. Z. Phys. C - Particles and Fields 33, 475–481 (1987). https://doi.org/10.1007/BF01548259
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DOI: https://doi.org/10.1007/BF01548259