Work

SPIN AND SPIN–SPIN CORRELATIONS IN CHARGINO PAIR PRODUCTION AT FUTURE LINEAR e+e- COLLIDERS

Year: 1999

Type: article

Abstract: A possibility to measure the spin and spin–spin correlations of a chargino pair is investigated in the process [Formula: see text] at future linear-collider energies. The total and the differential cross sections are calculated by the [Formula: see text] system which allows for the full spin correlation. Experimental sensitivity of the measurements are examined by assuming the limited detector resolution, the initial state radiation and the beam–beam effect (beamstrahlung). It is found that generally the spin–spin correlation can only be measured with a lower sensitivity than the chargino spin itself. The dependence of the correlation measurements on the relevant SUSY parameters can be seen for a light [Formula: see text] case, but the situation becomes worse for a heavier [Formula: see text].

Source: International Journal of Modern Physics A

DOI: 10.1142/s0217751x99002396

Authors: V. LAFAGE, T. ISHIKAWA, Y. KURIHARA, T. KANEKO, T. KON, H. TANAKA

Institutions: High Energy Accelerator Research Organization, Meiji Gakuin University, Ferris University, Seikei University, Rikkyo University

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2028767916

FWCI: 0.71

Cites: 6

Cited by: 4

Related to: 10