CP conserving and CP violating asymmetries in e{sup +}e {r_arrow} t{anti t}{nu}{sub e}(anti{nu}{sub e}) at the NLC: Application to determining the Higgs width

Journal Article · Mon Jul 01 00:00:00 EDT 1996

OSTI ID:756777

Atwood, David; Soni, Amarjit

The polarization asymmetries of t, {anti t} quarks can be used in the reaction e{sup +}e {r_arrow} t{anti t}{nu}{sub e}anti({nu}{sub e}) to measure the Higgs width, in the Standard Model or in its extensions, and to search for non-standard CP violating phases. As an application of the CPT theorem the Higgs width is monitored through a CP-even, T{sub N}-odd, polarization asymmetry, B{sub y}. CP violation manifests through interference at tree graph level with the resonant Higgs amplitude. Consequently, the asymmetries are all quite sizable and can be in the range of 10--50% for a wide choice of the Higgs mass.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE; USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 756777
• Report Number(s): DOE/ER/40150-1622; JLAB-THY-96-02; hep-ph/9607481; CEBAF-TH-96-14; TRN: US0003714
• Resource Relation: Other Information: No journal information given for this preprint; PBD: 1 Jul 1996
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
HIGGS BOSONS
CP INVARIANCE
T QUARKS
STANDARD MODEL
PARTICLE WIDTHS