scholarly journals O(αsv2) corrections to the hadronic decay of vector quarkonia

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
Wen-Long Sang ◽  
Feng Feng ◽  
Yu Jia
Keyword(s):  
Hadronic Decay

MEASUREMENT OF THE $D \bar{D}$ CROSS SECTIONS AND D HADRONIC BRANCHING FRACTIONS

2005 ◽  
Vol 20 (16) ◽  
pp. 3701-3703
Author(s):  
Guang-Pei Chen
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Branching Fractions ◽  
Hadronic Decay ◽  
Decay Modes ◽  
The Cross

Using 57.2 pb-1 of data collected with the CLEO-c detector at the ψ(3770) resonance, we measure absolute branching fractions for three D0 and two D+ Cabibbo-allowed hadronic decay modes, and the cross section for [Formula: see text] at [Formula: see text].

scholarly journals Study of the Drell-Yan process with the pair-production of polarized tau leptons in collisions of polarized proton beams

2019 ◽  
Vol 222 ◽  
pp. 03021
Author(s):  
A. Aleshko ◽  
E. Boos ◽  
V. Bunichev
Keyword(s):  
Parton Distribution ◽  
Polarization State ◽  
Distribution Functions ◽  
Hadronic Decay ◽  
New Method ◽  
Tau Leptons ◽  
Parton Distribution Functions ◽  
Accuracy Of Measurements ◽  
Polarized Proton

The new method for studying polarized parton distribution functions via the Drell-Yan process with tau production is proposed. The hadronic decay of tau to single charged pi-meson and neutrino is utilised for determination of the polarization state of the tau-lepton. The key feature of our approach is that we do not sum over the polarizations states of tau, but preserve this information through energies ofpions produced in corresponding decays. The new method in addition to existing ones should improve the accuracy of measurements of polarized structure functions of hadrons. In the current work, the feasibility of such an approach is assessed through numerical simulations.

scholarly journals Joint Topics on Exotic Hadron States and Heavy Flavor Hadronic Decay

2019 ◽  
Vol 2019 ◽  
pp. 1-2
Author(s):  
Xian-Wei Kang ◽  
J. A. Oller ◽  
Ling-Yun Dai ◽  
Tao Luo
Keyword(s):  
Hadronic Decay ◽  
Heavy Flavor ◽  
Exotic Hadron

Hadronic decay widths of Higgs bosons in the left-right-symmetric model

1992 ◽  
Vol 45 (1) ◽  
pp. 241-246 ◽  
Author(s):  
M. Frank ◽  
H. Hamidian ◽  
C. S. Kalman
Keyword(s):  
Higgs Bosons ◽  
Hadronic Decay ◽  
Symmetric Model ◽  
Decay Widths

CP VIOLATION IN THE B SYSTEM—A STATISTICAL ANALYSIS

1990 ◽  
Vol 05 (05) ◽  
pp. 337-347
Author(s):  
DAVID LONDON
Keyword(s):  
Statistical Analysis ◽  
Cp Violation ◽  
Standard Model ◽  
Probability Distributions ◽  
New Physics ◽  
Hadronic Decay ◽  
System A ◽  
The Standard Model ◽  
Model Predictions ◽  
Cp Asymmetries

The standard model predictions for CP violating hadronic decay asymmetries are presented in the form of probability distributions. From these distributions, it can be easily seen what the most likely values of these quantities are, which measurements would clearly be signs of new physics, and which values of the CP asymmetries would most constrain the parameters of the standard model.

scholarly journals The measurement of the $$H\rightarrow \tau \tau $$ signal strength in the future $$e^{+}e^{-}$$ Higgs factories

2020 ◽  
Vol 80 (1) ◽  
Author(s):  
Dan Yu ◽  
Manqi Ruan ◽  
Vincent Boudry ◽  
Henri Videau ◽  
Jean-Claude Brient ◽  
...  
Keyword(s):  
Linear Collider ◽  
Simulation Analysis ◽  
Center Of Mass ◽  
International Linear Collider ◽  
Signal Strength ◽  
Relative Accuracy ◽  
Hadronic Decay ◽  
Beam Polarization ◽  
Baseline Design ◽  
Electron Positron

AbstractThe Circular Electron Positron Collider and the International Linear Collider are two electron-positron Higgs factories. They are designed to operate at a center-of-mass energy of 240 and 250 GeV and accumulate 5.6 and 2 $$ab^{-1}$$ab-1 of integrated luminosity. This paper estimates their performance on the $$H \rightarrow \tau ^{+}\tau ^{-}$$H→τ+τ- benchmark measurement. Using the full simulation analysis, the CEPC is expected to measure the signal strength to a relative accuracy of 0.8%. Extrapolating to the ILC setup, we conclude the ILC can reach a relative accuracy of 1.1% or 1.2%, corresponding to two benchmark beam polarization setups. The physics requirement on the mass resolution of the Higgs boson with hadronic decay final states is also discussed, showing that the CEPC baseline design and reconstruction fulfill the accuracy requirement of the $$H\rightarrow \tau ^{+}\tau ^{-}$$H→τ+τ- signal strength.

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