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

被引：20

作者：

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

机构：

[1] PN Lebedev Phys Inst, Moscow 117924, Russia

[2] Univ Bristol, Bristol, Avon, England

[3] CERN, CH-1211 Geneva 23, Switzerland

[4] Univ Genoa, Ist Nazl Fis Nucl, Dipartimento Fis, I-16146 Genoa, Italy

[5] Grenoble ISN, F-38026 Grenoble, France

[6] Heidelberg Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

[7] Univ Heidelberg, Inst Phys, D-69120 Heidelberg, Germany

[8] Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany

[9] CERN, CH-1211 Geneva 23, Switzerland

来源：

EUROPEAN PHYSICAL JOURNAL C | 1999年 / 8卷 / 01期

关键词：

D O I：

10.1007/s100520050444

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We have investigated the elastic scattering of high energy Sigma(-) 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 Q(2)-distribution of these events suggests a mean square charge radius of the Sigma(-) of < r(ch)(2) > (Sigma(-)) = 0.91 +/- 0.32(stat.) +/- 0.4 (syst.) fm(2). This constitutes the first measurement of < r(ch)(2) > (Sigma(-)) and demonstrates the possibility to also measure the charge radii of other hyperons.

引用

页码：59 / 66

页数：8

共 27 条

[1]

ACOSTA D, 1991, NUCL INSTRUM METH A, V308, P481, DOI 10.1016/0168-9002(91)90062-U

[2] The high-intensity hyperon beam at CERN [J].

Alexandrov, YA ;

Clement, M ;

Dropmann, F ;

Fournier, A ;

Grafstrom, P ;

Hubbard, E ;

Paul, S ;

Schmitt, L ;

Siebert, HW ;

Trombini, A ;

Zavertiaev, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 408 (2-3) :359-372

[3] A MEASUREMENT OF THE SPACE-LIKE PION ELECTROMAGNETIC FORM-FACTOR [J].

AMENDOLIA, SR ;

ARIK, M ;

BADELEK, B ;

BATIGNANI, G ;

BECK, GA ;

BEDESCHI, F ;

BELLAMY, EH ;

BERTOLUCCI, E ;

BETTONI, D ;

BILOKON, H ;

BOLOGNA, G ;

BOSISIO, L ;

BRADASCHIA, C ;

BUDINICH, M ;

CODINO, A ;

DELLORSO, M ;

PIAZZOLI, BD ;

ENORINI, M ;

FABBRI, FL ;

FIDECARO, F ;

FOA, L ;

FOCARDI, E ;

FRANK, SGF ;

GIAZOTTO, A ;

GIORGI, MA ;

GREEN, MG ;

HARVEY, J ;

HEATH, GP ;

LANDON, MPJ ;

LAURELLI, P ;

LIELLO, F ;

MANNOCCHI, G ;

MARCH, PV ;

MARROCCHESI, PS ;

MENZIONE, A ;

MERONI, E ;

MORONI, L ;

MILOTTI, E ;

PICCHI, P ;

RAGUSA, F ;

RISTORI, L ;

ROLANDI, L ;

SALA, S ;

SALTMARSH, CG ;

SAOUCHA, A ;

SATTA, L ;

SCRIBANO, A ;

SPILLANTINI, P ;

STEFANINI, A ;

STOREY, D .

NUCLEAR PHYSICS B, 1986, 277 (01) :168-196

[4] A MEASUREMENT OF THE KAON CHARGE RADIUS [J].

AMENDOLIA, SR ;

BATIGNANI, G ;

BECK, GA ;

BELLAMY, EH ;

BERTOLUCCI, E ;

BOLOGNA, G ;

BOSISIO, L ;

BRADASCHIA, C ;

BUDINICH, M ;

DELLORSO, M ;

PIAZZOLI, BD ;

FABBRI, FL ;

FIDECARO, F ;

FOA, L ;

FOCARDI, E ;

FRANK, SGF ;

GIANETTI, P ;

GIAZZOTTO, A ;

GIORGI, MA ;

GREEN, MG ;

HEATH, GP ;

LANDON, MPJ ;

LAURELLI, P ;

LIELLO, F ;

MANNOCCHI, G ;

MARCH, PV ;

MARROCCHESI, PS ;

MENZIONE, A ;

MERONI, E ;

PICCHI, P ;

RAGUSA, F ;

RISTORI, L ;

ROLANDI, L ;

SCRIBANO, A ;

STEFANINI, A ;

STOREY, D ;

STRONG, JA ;

TENCHINI, R ;

TONELLI, G ;

TRIGGIANI, G ;

VONSCHLIPPE, W ;

ZALLO, A .

PHYSICS LETTERS B, 1986, 178 (04) :435-440

[5] A SCINTILLATING TILE HODOSCOPE WITH WLS FIBER READOUT [J].

BECK, M ;

BRENZINGER, KH ;

BRUCKNER, W ;

HALLER, T ;

PAUL, S ;

POVH, B ;

SIMON, A ;

WENZEL, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 355 (2-3) :351-358

[6] THE RICH COUNTER IN THE CERN HYPERON BEAM EXPERIMENT [J].

BEUSCH, W ;

ENGELFRIED, J ;

GERASSIMOV, SG ;

HEINTZE, J ;

KLUTH, S ;

LENNERT, P ;

LJUNGFELT, S ;

MARTENS, K ;

MICHAELS, R ;

MULLER, U ;

RIESEBERG, H ;

SIEBERT, HW ;

WALDER, G .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 323 (1-2) :373-379

[7] THE ELECTROMAGNETIC CALORIMETER IN THE HYPERON BEAM EXPERIMENT AT CERN [J].

BRUCKNER, W ;

CHUDAKOV, E ;

EDELHOFF, R ;

GERASSIMOV, S ;

KALLAKOWSKY, T ;

MICHAELS, R ;

MULLER, U ;

PAUL, S ;

POVH, B ;

ROHRICH, K ;

ROSNER, G ;

RUDOLPH, H ;

SIEBERT, HW ;

VOLKEMER, B ;

WALCHER, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 313 (03) :345-356

[8] SILICON MICROSTRIP DETECTORS WITH SVX CHIP READOUT [J].

BRUCKNER, W ;

DROPMANN, F ;

GODBERSEN, M ;

KONOROV, I ;

KONIGSMANN, K ;

MASCIOCCHI, S ;

NEWSOM, C ;

PAUL, S ;

POVH, B ;

RUSS, JS ;

TIMM, S ;

VORWALTER, K ;

WERDING, R .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 357 (2-3) :274-282

[9]

BRUCKNER W, 1995, HV14 MPI

[10]

*CERN, 1993, GEANT 3 21

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