Four-fermion production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV

• Main Authors: BUSKULIC, D., THULASIDAS, Manoj
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 1996
• Subjects: Databases and Information Systems; Programming Languages and Compilers
• Online Access: https://ink.library.smu.edu.sg/sis_research/5732; https://ink.library.smu.edu.sg/context/sis_research/article/6735/viewcontent/Four_fermion_production_in_e_e__collisions_at_centre_of_mass_energies_of_130_and_136_GeV.pdf
• Institution: Singapore Management University

Four-fermion events have been selected in a data sample of 5.8 pb−1 collected with the aleph detector at centre-of-mass energies of 130 and 136 GeV. The final states ℓ+ℓ−qq, ℓ+ℓ−ℓ+ℓ−, ννqq, and ννℓ+ℓ− have been examined. Five events are observed in the data, in agreement with the Standard Model predictions of 6.67±0.38 events from four-fermion processes and 0.14−0.05+0.19 from background processes.