D. Perrin | Researchain

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European Physical Journal A | 1988

Production of high transverse momentum prompt photons and neutral pions in proton-proton interactions at 280 GeV/c

M. Bonesini; E. Bonvin; P.S.L. Booth; L. Carroll; A. J. Cass; D. Cavalli; G. Cecchet; G. Costa; M. Donnat; P. A. Dorsaz; D.N. Edwards; J.R. Fischer; L. Fluri; D. Frame; F. Gianotti; S. Jack; J. N. Jackson; M. Kelly; M.N. Kienzle-Focacci; R. Lucock; J.G. Lynch; L. Mandelli; M. Martin; L. Mathys; A. Maxwell; M. Mazzanti; J.J. Myerscough; P. Negus; S. Pensotti-Rancoita; L. Perini

The inclusive cross sections for production of prompt photons and π0s by 280 GeV/c protons incident on a liquid hydrogen target, have been measured forpT in the range 4.0 to 6.5 GeV/c and for |xF|<0.45. A quantitative comparison of the prompt photon cross section with next-to-leading order QCD predictions using Duke and Owens structure functions is performed. Phenomenological fits to the π0 and prompt photon cross sections are given.

European Physical Journal A | 1988

High transverse momentum prompt photon production by π− and π+ on protons at 280 GeV/c

M. Bonesini; E. Bonvin; P.S.L. Booth; D. Bortoletto; L. Carroll; A. J. Cass; D. Cavalli; G. Costa; M. Donnat; P. A. Dorsaz; D.N. Edwards; J.R. Fischer; L. Fluri; D. Frame; F. Gianotti; S. Jack; J. N. Jackson; M. Kelly; M.N. Kienzle-Focacci; R. Lucock; J.G. Lynch; L. Mandelli; M. Martin; L. Mathys; A. Maxwell; M. Mazzanti; J.J. Myerscough; P. Negus; S. Pensotti-Rancoita; L. Perini

The inclusive cross sections for prompt photon production by π− and π+ on protons have been measured with a beam momentum of 280 GeV/c using a fine grained electromagnetic calorimeter and the CERN Omega spectrometer. The transverse momentum and FeynmanxF ranges covered are 4.0<pT<7.0GeV/c and −0.45<xF<0.55 respectively. A quantitative comparison of the prompt photon cross section with next-to-leading order QCD predictions using Duke and Owens structure functions is performed.

European Physical Journal C | 1984

Study of theA-dependence of inclusivep,\(\bar p\),Λ and\(\bar \Lambda \) production in π±-Nucleus interactions at 30 GeV/c

M. G. Abreu; T. Armstrong; M. Baubillier; W. Beusch; A. Burns; N. Erschaidat; J. M. Gago; A. Jacholkowski; K. Knudson; S. Otwinowski; D. Perrin; Antimo Palano; M. Pimenta; E. Quercigh; Z. Strachman; M. Szeptycka; S. Tkaczyk; R. Walczak; R. Zitoun

AbstractWe present the first results on the production of fast (p>10 GeV/c)p,

Nuclear Physics | 1987

Backward scattering in π−p → pπ−, pp → π+π−, K−p → pK− and pp → pp at 8 and 12 GeV/c

T.A. Armstrong; M. Baubillier; J.C. Brient; J. Dias de Deus; J. M. Gago; Yu. Galaktianov; J. Kahane; D. Perrin; M. Pimenta; M. Sené; R. Sené; P. Sonderegger; Z. Strachman; R. Zitoun

European Physical Journal C | 1987

High transverse momentum π0 production by π− and π+ on protons at 280 GeV/c

M. Bonesini; E. Bonvin; P.S.L. Booth; D. Bortoletto; L. Carroll; A. J. Cass; D. Cavalli; Giuseppe Costa; M. Donnat; P. A. Dorsaz; D.N. Edwards; J.R. Fischer; L. Fluri; D. Frame; F. Gianotti; S. Jack; J. N. Jackson; M. Kelly; M.N. Kienzle-Focacci; R. Lucock; J.G. Lynch; L. Mandelli; M. Martin; L. Mathys; A. Maxwell; M. Mazzanti; J.J. Myerscough; P. Negus; S. Pensotti-Rancoita; L. Perini

\bar p

Nuclear Physics | 1985

Lambda polarization in the K− fragmentation region

T.A. Armstrong; M. Baubillier; J.C. Brient; J. Dias de Deus; J.M Gago; J. Kahane; D. Perrin; M. Pimenta; M. Sené; R. Sené; P. Sonderegger; Z. Strachman; R. Zitoun

European Physical Journal C | 1989

High transverse momentumη production in π−p, π+p, andpp interactions at 280 GeV/c

M. Bonesini; E. Bonvin; P.S.L. Booth; R. Bopp; L. Carroll; A. J. Cass; D. Cavalli; S. U. Chung; Giuseppe Costa; M. Donnat; P. A. Dorsaz; E. Durieux; M. E. J. Feliks; J.R. Fischer; L. Fluri; F. Gianotti; S. Jack; J. N. Jackson; M. Kelly; M.N. Kienzle-Focacci; R. Lucock; J.G. Lynch; L. Mandelli; M. Martin; L. Mathys; A. Maxwell; M. Mazzanti; P. Negus; L. Perini; D. Perrin

, Λ and

European Physical Journal A | 1989

The structure of events triggered by direct photons in π−p, π+p andpp collisions at 280 GeV/c

M. Bonesini; E. Bonvin; R. Bopp; L. Carroll; A. J. Cass; D. Cavalli; G. Costa; S. U. Chung; M. Donnat; P. A. Dorsaz; M. E. J. Feliks; J.R. Fischer; L. Fluri; F. Gianotti; S. Jack; J. N. Jackson; M.N. Kienzle-Focacci; J.G. Lynch; L. Mandelli; M. Martin; L. Mathys; A. Maxwell; M. Mazzanti; P. Negus; S. Pensotti-Rancoita; L. Perini; D. Perrin; R. W. Poultney; W.H. Range; L. Rosselet

European Physical Journal A | 1986

Inclusive proton and antiproton production in π± hydrogen and π± nucleus interactions at 30 GeV/c

M. C. Abreu; T. Armstrong; M. Baubillier; W. Beusch; A. Burns; J. M. Gago; A. Jacholkowski; K. Knudson; S. Otwinowski; D. Perrin; Antimo Palano; M. Pimenta; E. Quercigh; Z. Strachman; M. Szeptycka; S. Tkaczyk; R. Walczak; R. Zitoun

\bar \Lambda

European Physical Journal C | 1989

The structure of events triggered by direct photons in p - p , p + p

M. Bonesini; E. Bonvin; R. Bopp; L. Carroll; Alan Cass; D. Cavalli; G. J. Costa; S. U. Chung; Michel Donnat; P.-A. Dorsaz; M. E. J. Feliks; Jan Fischer; L. Fluri; F. Gianotti; S. Jack; J. N. Jackson; M.N. Kienzle-Focacci; J.G. Lynch; L. Mandelli; Murray Martin; L. Mathys; Andrew J. Maxwell; M. Mazzanti; P. Negus; S. Pensotti-Rancoita; L. Perini; D. Perrin; R. W. Poultney; W.H. Range; L. Rosselet

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