Measurement of the Sigma(-) charge radius by Sigma(-)-electron elastic scattering

Newsom, C; Prutskoi, VA; Ramberg, E; Rappazzo, GF; Razmyslovich, BV; Rud, VI; Russ, J; Scheglov, Y; Schiavon, P; Sitnikov, AI; Skow, D; Smith, VJ; Srivastava, M; Steiner, V; Stepanov, V; Stutte, L; Svoiski, M; Terentyev, NK; Thomas, GP; Uvarov, LN; Vasiliev, AN; Vavilov, DV; Verebryusov, VS; Victorov, VA; Vishnyakov, VE; Vorobyov, AA; You, J; Zhao, WH; Zheng, SC; Zukanovich-Funchal, R; Ozkorucuklu, Suat; Kulyavtsev, AI; Kuropatkin, NP; Kurshetsov, VF; Kushnirenko, A; Kwan, S; Lach, J; Lamberto, A; Landsberg, LG; Larin, I; Leikin, EM; Li, YS; Luksys, M; Lungov, T; Maleev, VP; Mao, D; Mao, CS; Mao, ZL; Masciocchi, S; Mathew, P; Mattson, M; Matveev, V; McCliment, E; Moinester, MA; Molchanov, VV; Morelos, A; Nelson, KD; Nemitkin, AV; Neoustroev, PV; Nilov, AP; Nurushev, SB; Ocherashvili, A; Onel, Y; Ozel, E; Eschrich, I; Kruger, H; Simon, J; Vorwalter, K; Alkhazov, G; Atamantchouk, AG; Balatz, MY; Bondar, NF; Cooper, PS; Dauwe, LJ; Davidenko, GV; Dersch, U; Dirkes, G; Dolgolenko, AG; Dzyubenko, GB; Edelstein, R; Emediato, L; Endler, AMF; Engelfried, J; Escobar, CO; Evdokimov, AV; Filimonov, IS; Garcia, FG; Gaspero, M; Giller, I; Golovtsov, VL; Gouffon, P; Gulmez, E; Kangling, H; Iori, M; Jun, SY; Kaya, M; Kilmer, J; Kim, VT; Kochenda, LM; Konigsmann, K; Konorov, I; Kozhevnikov, AP; Krivshich, AG; Kubantsev, MA; Kubarovsky, VP; Penzo, A; Petrenko, SV; Pogodin, P; Povh, B; Procario, M

Author

Newsom, C

Prutskoi, VA

Ramberg, E

Rappazzo, GF

Razmyslovich, BV

Rud, VI

Russ, J

Scheglov, Y

Schiavon, P

Sitnikov, AI

Skow, D

Smith, VJ

Srivastava, M

Steiner, V

Stepanov, V

Stutte, L

Svoiski, M

Terentyev, NK

Thomas, GP

Uvarov, LN

Vasiliev, AN

Vavilov, DV

Verebryusov, VS

Victorov, VA

Vishnyakov, VE

Vorobyov, AA

You, J

Zhao, WH

Zheng, SC

Zukanovich-Funchal, R

Ozkorucuklu, Suat

Kulyavtsev, AI

Kuropatkin, NP

Kurshetsov, VF

Kushnirenko, A

Kwan, S

Lach, J

Lamberto, A

Landsberg, LG

Larin, I

Leikin, EM

Li, YS

Luksys, M

Lungov, T

Maleev, VP

Mao, D

Mao, CS

Mao, ZL

Masciocchi, S

Mathew, P

Mattson, M

Matveev, V

McCliment, E

Moinester, MA

Molchanov, VV

Morelos, A

Nelson, KD

Nemitkin, AV

Neoustroev, PV

Nilov, AP

Nurushev, SB

Ocherashvili, A

Onel, Y

Ozel, E

Eschrich, I

Kruger, H

Simon, J

Vorwalter, K

Alkhazov, G

Atamantchouk, AG

Balatz, MY

Bondar, NF

Cooper, PS

Dauwe, LJ

Davidenko, GV

Dersch, U

Dirkes, G

Dolgolenko, AG

Dzyubenko, GB

Edelstein, R

Emediato, L

Endler, AMF

Engelfried, J

Escobar, CO

Evdokimov, AV

Filimonov, IS

Garcia, FG

Gaspero, M

Giller, I

Golovtsov, VL

Gouffon, P

Gulmez, E

Kangling, H

Iori, M

Jun, SY

Kaya, M

Kilmer, J

Kim, VT

Kochenda, LM

Konigsmann, K

Konorov, I

Kozhevnikov, AP

Krivshich, AG

Kubantsev, MA

Kubarovsky, VP

Penzo, A

Petrenko, SV

Pogodin, P

Povh, B

Procario, M

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Abstract

The Sigma (-) mean squared charge radius has been measured in the space-like Q(2) range 0.035--0.105 GeV2/c(2) by elastic scattering of a Sigma (-) beam off atomic electrons. The measurement was per-formed with the SELEX (E781) spectrometer using the Fermilab hyperon beam at a mean energy of 610 GeV/c We obtain Sigma (-) =(0.61 +/- 0.12(stat.) +/- 0.09(syst.)) fm(2). The proton and pi (-) charge radii were measured as well and are consistent with results of other experiments. Our result agrees with the recently measured strong interaction radius of the Sigma (-). (C) 2001 Elsevier Science B.V. All rights reserved.

URI

http://hdl.handle.net/20.500.12627/94424
https://doi.org/10.1016/s0370-2693(01)01285-0

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