List the quantum numbers for the antiquark
State the
quark content for and p.
For antiquarks (with s denoting __________ ___ ____ ______ ____ ________.
____ _______ _______ _________ ______ ____ __________ _________ ____.
____ _________ _________ ___ ___ _________ _______ _______ ___ ___.
_____ ___.
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A human body contains 0.245kg of normal potassium (K) of which 0.015 percent isthe radioactive beta emitter potassium-40 Calculate therate of production of
-particles in the body from the decay of potassium-40. What is the activity?
Explain tensor potential which justifies the non – zero quadrupole moment of deuteron.
Tritium emits electrons and magnesium emits positrons. Represent the
two decay processes by equations and calculate in each case the end-point energy of the particles emitted.
Given:
List the quantum numbers for the antiquark
State the
quark content for and p.
The mass defects forCalculate
the corresponding atomic mass.
What are the four fundamental forces in nature? List the field particles that mediate these interactions and their properties. Which of the fundamental forces (interactions) are responsible for the neutrino flux from the sun and the neutrinos produced in the reactors?
A compound nucleus has a neutron resonance at 75 eV which is produced through a neutron entrance channel. The resonance state mainly decays through a neutron, gamma and alpha channel with the partial decay widths as
, respectively. Estimate the cross section for
reactions.