TY - JOUR

T1 - Kinematic and vertex fitting package for the CMD-3 experiment

AU - Gribanov, S.

AU - Popov, A.

PY - 2023/5/1

Y1 - 2023/5/1

N2 - In this article, we discuss a new software package of kinematic and vertex fitting for the CMD-3 experiment at the VEPP-2000 electron-positron collider. The authors describe in detail the fitting algorithm, parametrization of four-momenta and trajectories of various particles and present the results of testing the fitting pakage using events of Monte Carlo simulation of various e + e - annihilation processes. The authors also provide several examples of the fitting package validation using Gaussian simulation. Although the package discussed in this article is intended for the CMD-3 experiment, it can also be used in other experiments. The authors consider the described package as their first step towards a more universal and rigorous kinematic and vertex fitting package that can be used in future e + e - experiments, such as the Super Charm-Tau factory.

AB - In this article, we discuss a new software package of kinematic and vertex fitting for the CMD-3 experiment at the VEPP-2000 electron-positron collider. The authors describe in detail the fitting algorithm, parametrization of four-momenta and trajectories of various particles and present the results of testing the fitting pakage using events of Monte Carlo simulation of various e + e - annihilation processes. The authors also provide several examples of the fitting package validation using Gaussian simulation. Although the package discussed in this article is intended for the CMD-3 experiment, it can also be used in other experiments. The authors consider the described package as their first step towards a more universal and rigorous kinematic and vertex fitting package that can be used in future e + e - experiments, such as the Super Charm-Tau factory.

KW - Data processing methods

KW - Particle identification methods

KW - Software architectures (event data models, frameworks and databases)

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85160320400&origin=inward&txGid=5478e5083a325df5e928281543a9e411

UR - https://www.mendeley.com/catalogue/8b67f564-2871-30bd-9bd6-c19bbd99119e/

U2 - 10.1088/1748-0221/18/05/P05030

DO - 10.1088/1748-0221/18/05/P05030

M3 - Article

VL - 18

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 5

M1 - P05030

ER -