RT Dissertation/Thesis
T1 Boosting the discovery potential of LHCb by developing a new search for diphoton resonances and an alternative muon reconstruction technique using GPUs
A1 Casais Vidal, Adrián
K1 High Energy Physics
K1 Axion
K1 Calorimeter
K1 Trigger
AB The main part of this thesis is devoted to describe a search for a diphoton resonance in the[5,20] GeV mass region with pp collision data taken with the LHCb experiment during 2018at an energy √s = 13 TeV. This work describes the first physics analysis using only photonsdetected by the calorimeter at LHCb. A precise calibration of the different selection steps isperformed, particularly for the trigger selections. World best sensitivity for an ALP producedvia gluon fusion and decaying to two photons is expected in the [5,10] GeV region. The resultis also interpreted as a B0s, B0 or ηb meson decaying to two photons and expected upper limitson the branching fractions are reported.The thesis is also devoted to the development of a tracking sequence using the VELO andMUON stations of the LHCb detector with a momentum resolution of ∼ 5% for the GPUimplementation of the trigger.
YR 2023
FD 2023
LK http://hdl.handle.net/10347/31293
UL http://hdl.handle.net/10347/31293
LA eng
DS Minerva
RD 24 abr 2026