Sfermion precision measurements at a linear collider
- NázevTitle
- Sfermion precision measurements at a linear colliderSfermion precision measurements at a linear collider
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- A Freitas, B Ananthanarayan, A Bard, G Blair, A. Sopczak
- Časopis / citaceJournal / citation
- Nuclear Physics B - Proceedings Supplements. 2003, ISSN 0920-5632.
- RokYear
- 2003
- JazykLanguage
- eng
- WoSWoS
- 000185996600204
- RIVRIV
AbstraktAbstract
At prospective e(+/-)e(-) linear colliders, the large cross-sections and clean signals of scalar fermion production - in particular for the scalar leptons - allow very precise measurements of their masses and couplings and the determination of their quantum numbers. Various methods are proposed for extracting these parameters from the data at the sfermion thresholds and in the continuum. At the same time, NLO radiative corrections and non-zero width effects have been calculated in order to match the experimental accuracy. The substantial mixing expected in the third generation opens up additional opportunities. Techniques are presented for determining potential CP-violating phases and for extracting tan beta from the stau sector, in particular at high values. The consequences of possible large mass differences in the stop and sbottom system are explored in dedicated analyses.
At prospective e(+/-)e(-) linear colliders, the large cross-sections and clean signals of scalar fermion production - in particular for the scalar leptons - allow very precise measurements of their masses and couplings and the determination of their quantum numbers. Various methods are proposed for extracting these parameters from the data at the sfermion thresholds and in the continuum. At the same time, NLO radiative corrections and non-zero width effects have been calculated in order to match the experimental accuracy. The substantial mixing expected in the third generation opens up additional opportunities. Techniques are presented for determining potential CP-violating phases and for extracting tan beta from the stau sector, in particular at high values. The consequences of possible large mass differences in the stop and sbottom system are explored in dedicated analyses.