First observation of Σ--e- elastic scattering in the hyperon beam experiment WA89 at CERN

M. I. Adamovich; Yu A. Alexandrov; D. Barberis; M. Beck; C. Bérat; W. Beusch; M. Boss; S. Brons; W. Brückner; M. Buénerd; C. Busch; C. Büscher; F. Charignon; J. Chauvin; E. A. Chudakov; U. Dersch; F. Dropmann; J. Engelfried; F. Faller; A. Fournier; S. G. Gerassimov; M. Godbersen; P. Grafström; Th Haller; M. Heidrich; E. Hubbard; R. B. Hurst; K. Königsmann; I. Konorov; N. Keller; K. Martens; Ph Martin; S. Masciocchi; R. Michaels; U. Müller; H. Neeb; D. Newbold; C. Newsom; S. Paul; J. Pochodzalla; I. Potashnikova; B. Povh; R. D. Ransome; Z. Ren; M. Rey-Campagnolle; G. Rosner; L. Rossi; H. Rudolph; C. Scheel; L. Schmitt; H. W. Siebert; A. Simon; V. J. Smith; O. Thilmann; A. Trombini; E. Vesin; B. Volkemer; K. Vorwalter; Th Walcher; G. Wälder; R. Werding; E. Wittmann; M. V. Zavertyaev

doi:10.1007/s100529901103

First observation of Σ^--e^- elastic scattering in the hyperon beam experiment WA89 at CERN

M. I. Adamovich
, Yu A. Alexandrov
, D. Barberis
, M. Beck
, C. Bérat
, W. Beusch
, M. Boss
, S. Brons
, W. Brückner
, M. Buénerd
, C. Busch
, C. Büscher
, F. Charignon
, J. Chauvin
, E. A. Chudakov
, U. Dersch
, F. Dropmann
, J. Engelfried
, F. Faller
, A. Fournier

S. G. Gerassimov, M. Godbersen, P. Grafström, Th Haller, M. Heidrich, E. Hubbard, R. B. Hurst, K. Königsmann, I. Konorov, N. Keller, K. Martens, Ph Martin, S. Masciocchi, R. Michaels, U. Müller, H. Neeb, D. Newbold, C. Newsom, S. Paul, J. Pochodzalla, I. Potashnikova, B. Povh, R. D. Ransome, Z. Ren, M. Rey-Campagnolle, G. Rosner, L. Rossi, H. Rudolph, C. Scheel, L. Schmitt, H. W. Siebert, A. Simon, V. J. Smith, O. Thilmann, A. Trombini, E. Vesin, B. Volkemer, K. Vorwalter, Th Walcher, G. Wälder, R. Werding, E. Wittmann, M. V. Zavertyaev

Chair of Physics I

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

We have investigated the elastic scattering of high energy Σ^- off electrons from carbon and copper targets using the CERN hyperon beam. Scattering events are identified using a maximum likelihood technique exploring the kinematical relations of the scattered particles. The observed Q²-distribution of these events suggests a mean square charge radius of the Σ^- of < r²_ch > (Σ^-) = 0.91 ± 0.32(stat.) ± 0.4 (syst.) fm². This constitutes the first measurement of < r²_ch > (Σ^-) and demonstrates the possibility to also measure the charge radii of other hyperons.

Original language	English
Pages (from-to)	59-66
Number of pages	8
Journal	European Physical Journal C
Volume	8
Issue number	1
DOIs	https://doi.org/10.1007/s100529901103
State	Published - 1999

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Adamovich, M. I., Alexandrov, Y. A., Barberis, D., Beck, M., Bérat, C., Beusch, W., Boss, M., Brons, S., Brückner, W., Buénerd, M., Busch, C., Büscher, C., Charignon, F., Chauvin, J., Chudakov, E. A., Dersch, U., Dropmann, F., Engelfried, J., Faller, F., ... Zavertyaev, M. V. (1999). First observation of Σ^--e^- elastic scattering in the hyperon beam experiment WA89 at CERN. European Physical Journal C, 8(1), 59-66. https://doi.org/10.1007/s100529901103

@article{aae1b78b43ac4007b40f569052d15f8e,

title = "First observation of Σ--e- elastic scattering in the hyperon beam experiment WA89 at CERN",

abstract = "We have investigated the elastic scattering of high energy Σ- off electrons from carbon and copper targets using the CERN hyperon beam. Scattering events are identified using a maximum likelihood technique exploring the kinematical relations of the scattered particles. The observed Q2-distribution of these events suggests a mean square charge radius of the Σ- of < r2ch > (Σ-) = 0.91 ± 0.32(stat.) ± 0.4 (syst.) fm2. This constitutes the first measurement of < r2ch > (Σ-) and demonstrates the possibility to also measure the charge radii of other hyperons.",

author = "Adamovich, \{M. I.\} and Alexandrov, \{Yu A.\} and D. Barberis and M. Beck and C. B{\'e}rat and W. Beusch and M. Boss and S. Brons and W. Br{\"u}ckner and M. Bu{\'e}nerd and C. Busch and C. B{\"u}scher and F. Charignon and J. Chauvin and Chudakov, \{E. A.\} and U. Dersch and F. Dropmann and J. Engelfried and F. Faller and A. Fournier and Gerassimov, \{S. G.\} and M. Godbersen and P. Grafstr{\"o}m and Th Haller and M. Heidrich and E. Hubbard and Hurst, \{R. B.\} and K. K{\"o}nigsmann and I. Konorov and N. Keller and K. Martens and Ph Martin and S. Masciocchi and R. Michaels and U. M{\"u}ller and H. Neeb and D. Newbold and C. Newsom and S. Paul and J. Pochodzalla and I. Potashnikova and B. Povh and Ransome, \{R. D.\} and Z. Ren and M. Rey-Campagnolle and G. Rosner and L. Rossi and H. Rudolph and C. Scheel and L. Schmitt and Siebert, \{H. W.\} and A. Simon and Smith, \{V. J.\} and O. Thilmann and A. Trombini and E. Vesin and B. Volkemer and K. Vorwalter and Th Walcher and G. W{\"a}lder and R. Werding and E. Wittmann and Zavertyaev, \{M. V.\}",

year = "1999",

doi = "10.1007/s100529901103",

language = "English",

volume = "8",

pages = "59--66",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "1",

}

Adamovich, MI, Alexandrov, YA, Barberis, D, Beck, M, Bérat, C, Beusch, W, Boss, M, Brons, S, Brückner, W, Buénerd, M, Busch, C, Büscher, C, Charignon, F, Chauvin, J, Chudakov, EA, Dersch, U, Dropmann, F, Engelfried, J, Faller, F, Fournier, A, Gerassimov, SG, Godbersen, M, Grafström, P, Haller, T, Heidrich, M, Hubbard, E, Hurst, RB, Königsmann, K, Konorov, I, Keller, N, Martens, K, Martin, P, Masciocchi, S, Michaels, R, Müller, U, Neeb, H, Newbold, D, Newsom, C, Paul, S, Pochodzalla, J, Potashnikova, I, Povh, B, Ransome, RD, Ren, Z, Rey-Campagnolle, M, Rosner, G, Rossi, L, Rudolph, H, Scheel, C, Schmitt, L, Siebert, HW, Simon, A, Smith, VJ, Thilmann, O, Trombini, A, Vesin, E, Volkemer, B, Vorwalter, K, Walcher, T, Wälder, G, Werding, R, Wittmann, E & Zavertyaev, MV 1999, 'First observation of Σ^--e^- elastic scattering in the hyperon beam experiment WA89 at CERN', European Physical Journal C, vol. 8, no. 1, pp. 59-66. https://doi.org/10.1007/s100529901103

TY - JOUR

T1 - First observation of Σ--e- elastic scattering in the hyperon beam experiment WA89 at CERN

AU - Adamovich, M. I.

AU - Alexandrov, Yu A.

AU - Barberis, D.

AU - Beck, M.

AU - Bérat, C.

AU - Beusch, W.

AU - Boss, M.

AU - Brons, S.

AU - Brückner, W.

AU - Buénerd, M.

AU - Busch, C.

AU - Büscher, C.

AU - Charignon, F.

AU - Chauvin, J.

AU - Chudakov, E. A.

AU - Dersch, U.

AU - Dropmann, F.

AU - Engelfried, J.

AU - Faller, F.

AU - Fournier, A.

AU - Gerassimov, S. G.

AU - Godbersen, M.

AU - Grafström, P.

AU - Haller, Th

AU - Heidrich, M.

AU - Hubbard, E.

AU - Hurst, R. B.

AU - Königsmann, K.

AU - Konorov, I.

AU - Keller, N.

AU - Martens, K.

AU - Martin, Ph

AU - Masciocchi, S.

AU - Michaels, R.

AU - Müller, U.

AU - Neeb, H.

AU - Newbold, D.

AU - Newsom, C.

AU - Paul, S.

AU - Pochodzalla, J.

AU - Potashnikova, I.

AU - Povh, B.

AU - Ransome, R. D.

AU - Ren, Z.

AU - Rey-Campagnolle, M.

AU - Rosner, G.

AU - Rossi, L.

AU - Rudolph, H.

AU - Scheel, C.

AU - Schmitt, L.

AU - Siebert, H. W.

AU - Simon, A.

AU - Smith, V. J.

AU - Thilmann, O.

AU - Trombini, A.

AU - Vesin, E.

AU - Volkemer, B.

AU - Vorwalter, K.

AU - Walcher, Th

AU - Wälder, G.

AU - Werding, R.

AU - Wittmann, E.

AU - Zavertyaev, M. V.

PY - 1999

Y1 - 1999

N2 - We have investigated the elastic scattering of high energy Σ- off electrons from carbon and copper targets using the CERN hyperon beam. Scattering events are identified using a maximum likelihood technique exploring the kinematical relations of the scattered particles. The observed Q2-distribution of these events suggests a mean square charge radius of the Σ- of < r2ch > (Σ-) = 0.91 ± 0.32(stat.) ± 0.4 (syst.) fm2. This constitutes the first measurement of < r2ch > (Σ-) and demonstrates the possibility to also measure the charge radii of other hyperons.

AB - We have investigated the elastic scattering of high energy Σ- off electrons from carbon and copper targets using the CERN hyperon beam. Scattering events are identified using a maximum likelihood technique exploring the kinematical relations of the scattered particles. The observed Q2-distribution of these events suggests a mean square charge radius of the Σ- of < r2ch > (Σ-) = 0.91 ± 0.32(stat.) ± 0.4 (syst.) fm2. This constitutes the first measurement of < r2ch > (Σ-) and demonstrates the possibility to also measure the charge radii of other hyperons.

UR - https://www.scopus.com/pages/publications/0002794629

U2 - 10.1007/s100529901103

DO - 10.1007/s100529901103

M3 - Article

AN - SCOPUS:0002794629

SN - 1434-6044

VL - 8

SP - 59

EP - 66

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

ER -

First observation of Σ^--e^- elastic scattering in the hyperon beam experiment WA89 at CERN

Abstract

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