Research in Lattice Gauge Theory and in the Phenomenology of Neutrinos and Dark Matter

Meurice, Yannick L¹  Reno, Mary Hall¹ 

[1]Univ. of Iowa, Iowa City, IA (United States)

关键词: LATTICE FIELD THEORY;    NEUTRINOS;    T QUARKS;    B MESONS;    B QUARKS;    C QUARKS;    STRONG INTERACTIONS;    SEMILEPTONIC DECAY;    MUONS;    HIGGS BOSONS;    GAUGE INVARIANCE;    STANDARD MODEL;    NONLUMINOUS MATTER;    COSMIC RADIATION;    M;   

DOI  :  10.2172/1258734
RP-ID  :  DOE-Iowa--SC0010114-1
PID  :  OSTI ID: 1258734
Others  :  TRN: US1601522

学科分类：物理（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Research in theoretical elementary particle physics was performed by the PI Yannick Meurice and co-PI Mary Hall Reno. New techniques designed for precision calculations of strong interaction physics were developed using the tensor renormalization group method. Large-scale Monte Carlo simulations with dynamical quarks were performed for candidate models for Higgs compositeness. Ab-initio lattice gauge theory calculations of semileptonic decays of B-mesons observed in collider experiments and relevant to test the validity of the standard model were performed with the Fermilab/MILC collaboration. The phenomenology of strong interaction physics was applied to new predictions for physics processes in accelerator physics experiments and to cosmic ray production and interactions. A research focus has been on heavy quark production and their decays to neutrinos. The heavy quark contributions to atmospheric neutrino and muon fluxes have been evaluated, as have the neutrino fluxes from accelerator beams incident on heavy targets. Results are applicable to current and future particle physics experiments and to astrophysical neutrino detectors such as the IceCube Neutrino Observatory.