학술논문

Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb
Document Type
article
Source
European Physical Journal C. 75(12)
Subject
Nuclear and Plasma Physics
Particle and High Energy Physics
Physical Sciences
hep-ex
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Quantum Physics
Nuclear & Particles Physics
Astronomical sciences
Atomic
molecular and optical physics
Particle and high energy physics
Language
Abstract
A search is performed for heavy long-lived charged particles using 3.0 [Formula: see text] of proton-proton collisions collected at [Formula: see text][Formula: see text] 7 and 8  TeV with the LHCb detector. The search is mainly based on the response of the ring imaging Cherenkov detectors to distinguish the heavy, slow-moving particles from muons. No evidence is found for the production of such long-lived states. The results are expressed as limits on the Drell-Yan production of pairs of long-lived particles, with both particles in the LHCb pseudorapidity acceptance, [Formula: see text]. The mass-dependent cross-section upper limits are in the range 2-4 fb (at 95 % CL) for masses between 14 and 309 [Formula: see text].