Top quark spin polarization in e gamma collision

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Sahin B., Sahin İ.

MODERN PHYSICS LETTERS A, cilt.23, sa.7, ss.519-525, 2008 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 7
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1142/s021773230802433x
  • Dergi Adı: MODERN PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.519-525
  • Anahtar Kelimeler: top quark, spin polarization, FERMILAB-TEVATRON, PAIR PRODUCTION, SINGLE, COLLIDERS
  • Ankara Üniversitesi Adresli: Evet

Özet

We investigate the degree of spin polarization of single top quarks in the e gamma collision via the process e(+)gamma --> t (b) over bar(v) over bar (e) with center-of-mass energies root s = 0.5, 1 and 1.5 TeV of the parental linear e(+)e(-) collider. Dominant spin fractions and spin asymmetries for the various top quark spin bases are investigated. We show that e(+)-beam direction is the favorite top quark spin decomposition axis. It is found to be comparable with the ones in pp and ep collisions.