W. Herr
Heidelberg University
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Featured researches published by W. Herr.
Nuclear Physics | 1984
A. Breakstone; R. Campanini; H. B. Crawley; G M Dallavalle; M.M. Deninno; K. Doroba; D. Drijard; F. Fabbri; A. Firestone; H.G. Fischer; H. Frehse; W. Geist; G. Giacomelli; R. Gokieli; M. Gorbics; P. Hanke; M. Heiden; W. Herr; P. G. Innocenti; E.-E. Kluge; J. W. Lamsa; T. Lohse; W. T. Meyer; G. Mornacchi; T. Nakada; M. Panter; A. Putzer; K. Rauschnabel; B. Rensch; F. Rimondi
We have measured the differential cross section for pp and pp elastic scattering at √s = 31, 53 and 62 GeV in the interval 0.05 < |t| < 0.85 GeV2 at the CERN ISR using the Split Field Magnet detector. At 53 and 62 GeV, for 0.17 < |t| < 0.85 GeV2 both pp and pp data show simple exponential behaviour in t; at √s = 31 GeV the data for 0.05 < |t| < 0.85 GeV2 are consistent with a change in slope near |t| = 0.15 GeV2.
Nuclear Physics | 1982
D. Drijard; W. Geist; O. Ullaland; A. Putzer; P. G. Innocenti; G. Mornacchi; W.T. Meyer; T. Nakada; E.-E. Kluge; A. Norton; Horst D. Wahl; M. Heiden; P. Hanke; J.W. Lamsa; D. Wegener; K. Doroba; H. Frehse; R. Sosnowski; K. Rauschnabel; B. Heck; W. Hofmann; W. Herr; R. Gokieli; H.G. Fischer; J. Spengler; M. Panter
Abstract The inclusive cross sections for the production of high transverse momentum π + and π − mesons in proton-proton interactions have been measured at the highest ISR energy √ s = 63 GeV and at a c.m. production angle of 50°. The cross sections for π + and π − mesons are compared as a function of transverse momentum. It is shown that the inclusive cross section of π − mesons decreases faster than the π + cross section. particle σ ( π ± )/ σ (charged particles) are presented as a function of transverse momentum.
European Physical Journal A | 1985
A. Breakstone; H. B. Crawley; G M Dallavalle; K. Doroba; D. Drijard; F. Fabbri; A. Firestone; H.G. Fischer; H. Frehse; W. Geist; G. Giacomelli; R. Gokieli; M. Gorbics; P. Hanke; M. Heiden; W. Herr; E.-E. Kluge; J. Lamsa; T. Lohse; R. Mankel; W. T. Meyer; T. Nakada; M. Panter; A. Putzer; K. Rauschnabel; B. Rensch; F. Rimondi; Michael Schmelling; G. P. Siroli; R. Sosnowski
The relative yield of high transverse momentum protons measured inpp interctions at the CERN ISR is calculated in the framework of simple parton models. Whereas models based exclusively on quark and gluon scattering fail to describe the data, the hypothesis of diquark scattering provides a quantitative understanding of the measured dependences on transverse momentum, polar angle, and centre-of-mass energy. Different assumptions on diquark structure functions are tested.
European Physical Journal C | 1987
A. Breakstone; H. B. Crawley; M. Cuffiani; G. M. Dallavalle; M. Deninno; K. Doroba; D. Drijard; F. Fabbri; A. Firestone; H.G. Fischer; H. Frehse; W. Geist; H. Flöge; L. Gesswein; G. Giacomelli; R. Gokieli; M. Gorbics; M. Górski; P. Hanke; M. Heiden; W. Herr; D. Isenhower; E.-E. Kluge; J. Lamsa; T. Lohse; R. Mankel; W. T. Meyer; T. Nakada; M. Panter; A. Putzer
AbstractThe average transverse momentum and the size of the particle emitting source (measured via Bose-Einstein correlations) have been studied as functions of the charged particle density in the central region inp-p interactions at
European Physical Journal C | 1986
A. Breakstone; H. B. Crawley; M. Cuffiani; G. M. Dallavalle; K. Doroba; D. Drijard; F. Fabbri; A. Firestone; H.G. Fischer; H. Frehse; W. Geist; L. Gesswein; G. Giacomelli; R. Gokieli; M. Gorbics; P. Hanke; M. Heiden; W. Herr; E.-E. Kluge; L. D. Isenhower; J. Lamsa; T. Lohse; R. Mankel; W. T. Meyer; T. Nakada; M. Panter; A. Putzer; K. Rauschnabel; B. Rensch; F. Rimondi
European Physical Journal A | 1985
W. Bell; K. Braune; G. Glaesson; D. Drijard; M. A. Faessler; H.G. Fischer; H. Frehse; S. Garpman; W. Geist; Charles R. Gruhn; P. Hanke; M. Heiden; W. Herr; P. G. Innocenti; T.J. Ketel; E.-E. Kluge; I. Lund; G. Mornacchi; T. Nakada; I. Otterlund; B. Povh; A. Putzer; B. Rensch; E. Stenlund; T. J. M. Symons; M. Szczekowski; R. Szwed; O. Ullaland; M. Wunsch
\sqrt s
Nuclear Physics | 1985
W. Bell; K. Braune; G. Claesson; D. Drijard; Martin A. Faessler; H.G. Fischer; H. Frehse; R. W. Frey; S. Garpman; W. Geist; C. Gruhn; P. Hanke; M. Heiden; W. Herr; P. G. Innocenti; T.J. Ketel; E.-E. Kluge; I. Lund; G. Mornacchi; T. Nakada; I. Otterlund; M. Panter; B. Povh; A. Putzer; E. Stenlund; T. J. M. Symons; R. Szwed; O. Ullaland
Physics Letters B | 1983
A. Breakstone; H. B. Crawley; G. M. Dallavalle; M. Deninno; K. Doroba; D. Drijard; F. Fabbri; A. Firestone; H.G. Fischer; H. Frehse; W. Geist; G. Giacomelli; R. Gokieli; M. Gorbics; P. Hanke; M. Heiden; W. Herr; P. G. Innocenti; E.-E. Kluge; J. Lamsa; T. Lohse; W. T. Meyer; G. Mornacchi; T. Nakada; M. Panter; A. Putzer; K. Rauschnabel; F. Rimondi; R. Sosnowski; M. Szczekowski
=62, 44 and 31 GeV. Both the average transverse momentum and the source size increase with increasing density at all three energies. This effect, very weak at
Physics Letters B | 1984
A. Breakstone; C. Buchanan; H. B. Crawley; G. M. Dallavalle; K. Doroba; D. Drijard; F. Fabbri; A. Firestone; H.G. Fischer; H. Frehse; W. Geist; G. Giacomelli; R. Gokieli; M. Gorbics; P. Hanke; M. Heiden; W. Herr; E.-E. Kluge; J. Lamsa; T. Lohse; W. T. Meyer; G. Mornacchi; T. Nakada; M. Panter; A. Putzer; K. Rauschnabel; F. Rimondi; R. Sosnowski; M. Szczekowski; O. Ullaland
Physics Letters B | 1983
K. Braune; A. Breakstone; R. Campanini; G. Claesson; H. B. Crawley; G.M. Dallavalle; K. Doroba; D. Drijard; F. Fabbri; M.A. Faessler; A. Firestone; H.G. Fischer; H. Frehse; S. Garpman; W. Geist; G. Giacomelli; R. Gokieli; M. Gorbics; Ch. Gruhn; P. Hanke; M. Heiden; W. Herr; W. Hofmann; P. G. Innocenti; T.J. Ketel; E.-E. Kluge; J. Lamsa; T. Lohse; W. T. Meyer; G. Mornacchi
\sqrt s
