Quantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic scales.
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Deutscher Akademischer Austausch Dienst (DAAD), popularly known as German Academic Exchange Service, has appointed Prof. A.A. Natu, IISER, as India’s research ambassador at a function held in New Delhi on August 19, 2010. Mr. Christiane Schlotmann, Head DAAD, New Delhi, conferred the honor on him for his exemplary dedication, leadership and commitment in encouraging Indo-German relations in the area of education and research. "DAAD promotes Indo-German co-operation in the area of education and research awarding scholarships at graduate, post graduate and doctoral level for studies in Germany. It has recently introduced a programme called working internships in science and engineering,’ wherein undergraduate students from 63 institutes across India can get scholarships for three months for practical training to carry out research projects," said Prof. A.A. Natu.
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In particle physics, mesons are subatomic particles composed of one quark and one antiquark. They are part of the hadron particle family—particles made of quarks. The other members of the hadron family are the baryons—subatomic particles composed of three quarks.
The main difference between mesons and baryons is that mesons are bosons while baryons are fermions—that is, mesons have integer spin while baryons have half-integer spin—meaning that the Pauli exclusion principle does not apply to mesons.
Each meson has a corresponding antiparticle (antimeson) where quarks are replaced by their corresponding antiquarks and vice-versa.
