Research PapersNo Access

TOP QUARK SPIN POLARIZATION IN eγ COLLISION

B. ŞAHIN

Department of Physics, Faculty of Sciences, Ankara University, 06100 Tandogan, Ankara, Turkey

Search for more papers by this author

and

İ. ŞAHIN

Department of Physics, Faculty of Sciences, Ankara University, 06100 Tandogan, Ankara, Turkey

Search for more papers by this author

https://doi.org/10.1142/S021773230802433XCited by:0 (Source: Crossref)

Abstract

We investigate the degree of spin polarization of single top quarks in the eγ collision via the process with center-of-mass energies , 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.

Keywords:

PACS: 14.65.Ha, 13.88.+e

References

I. Bigiet al., Phys. Lett. B 181, 157 (1986). Crossref, Web of Science, ADS, Google Scholar
C. Akerlof, Ann Arbor Report No. UM HE 81-59 (1981) . Google Scholar
T. L. Barklow , Proc. of the 1990 Summer Study on Research Directions for the Decade ( Snowmass , Colorado , 1990 ) . Google Scholar
I. F. Ginzburget al., Nucl. Instrum. Meth. 205, 47 (1983). Crossref, Web of Science, Google Scholar
I. F. Ginzburget al., Nucl. Instrum. Meth. 219, 5 (1984). Crossref, Web of Science, Google Scholar
G. Mahlon and S. Parke, Phys. Lett. B 476, 323 (2000). Crossref, Web of Science, ADS, Google Scholar
T. M. P. Tait, Phys. Rev. D 61, 034001 (2000), DOI: 10.1103/PhysRevD.61.034001. Crossref, Web of Science, Google Scholar
A. S. Belyaev, E. E. Boos and L. V. Dudko, Phys. Rev. D 59, 075001 (1999), DOI: 10.1103/PhysRevD.59.075001. Crossref, Web of Science, Google Scholar
T. Stelzer, Z. Sullivan and S. Willenbrock, Phys. Rev. D 58, 094021 (1998), DOI: 10.1103/PhysRevD.58.094021. Crossref, Web of Science, Google Scholar
G. Mahlon and S. Parke, Phys. Lett. B 411, 173 (1997). Crossref, Web of Science, ADS, Google Scholar
A. P. Heinson, A. S. Belyaev and E. E. Boos, Phys. Rev. D 56, 3114 (1997), DOI: 10.1103/PhysRevD.56.3114. Crossref, Web of Science, ADS, Google Scholar
G. Mahlon and S. Parke, Phys. Rev. D 55, 7249 (1997), DOI: 10.1103/PhysRevD.55.7249. Crossref, Web of Science, ADS, Google Scholar
S. Parke and Y. Shadmi, Phys. Lett. B 387, 199 (1996). Crossref, Web of Science, ADS, Google Scholar
G. Mahlon, talk presented at the Thinkshop2 on Top-Quark Physics for Run II (FNAL, 2000) , hep-ph/0011349 . Google Scholar
S. Atağ and B. D. Şahin, Phys. Rev. D 70, 037503 (2004), DOI: 10.1103/PhysRevD.70.037503. Crossref, Web of Science, Google Scholar
T. Kaneko , New Computing Techniques in Physics Research , eds. D. Perret-Gallix and W. Wojcik ( Edition du CNRS , 1990 ) . Google Scholar
MINAMI-TATEYA group, "GRACE manual", KEK Report 92-19, 1993 . Google Scholar
F. Yuasaet al., Prog. Theor. Phys. Suppl. 138, 18 (2000), DOI: 10.1143/PTPS.138.18. Crossref, ADS, Google Scholar