Atıf İçin Kopyala
Eschrich I., Kruger H., Simon J., Vorwalter K., Alkhazov G., Atamantchouk A., ...Daha Fazla
PHYSICS LETTERS B, cilt.522, ss.233-239, 2001 (SCI-Expanded)
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Yayın Türü:
Makale / Tam Makale
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Cilt numarası:
522
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Basım Tarihi:
2001
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Doi Numarası:
10.1016/s0370-2693(01)01285-0
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Dergi Adı:
PHYSICS LETTERS B
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus
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Sayfa Sayıları:
ss.233-239
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İstanbul Üniversitesi Adresli:
Hayır
Özet
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.