Physics and detector studies with the very forward calorimeters at a future linear collider

Božović-Jelisavc̆ić, I.; Lukić, S.; Smiljanić, I.; Pandurović, M.

doi:10.22323/1.174.0540

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Collision-frame Methods1

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2013

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“…For β coll larger than some critical value β * (approximately 0.24 in the ILC case [26]), the effective angular acceptance is zero and such events are irreducibly lost. In all other cases, the counting loss can be corrected using eq.…”

Section: Collision-frame Methodsmentioning

confidence: 99%

Luminosity measurement at ILC

Jelisavčić¹,

Lukić²,

Dumbelović³

et al. 2013

J. Inst.

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In this paper we describe a method of luminosity measurement at the future linear collider ILC that estimates and corrects for the impact of the dominant sources of systematic uncertainty originating from the beam-induced effects and the background from physics processes. Based on the relativistic kinematics of the collision frame of the Bhabha process, the beam-beam related uncertainty is reduced to a permille independently of the precision with which the beam parameters are known. With the specific event selection, different from the isolation cuts based on topology of the signal used at LEP, combined with the corrective methods we introduce, the overall systematic uncertainty in the peak region above 80% of the nominal center-of-mass energy meets the physics requirements to be at the few permille level at all ILC energies.

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Section: Collision-frame Methodsmentioning

confidence: 99%