particles having integer spin.?

Question

WHAT IS THE MEANING OF THIS

Answer 1

an integer (sometimes known as an "int", from the name of a datatype in the C programming language) is often a primitive datatype in computer languages. However, integer datatypes can only represent a subset of all integers, since practical computers are of finite capacity. Also, in the common two's complement representation, the inherent definition of sign (mathematics) distinguishes between "negative" and "non-negative" rather than "negative, positive, and 0". (It is, however, certainly possible for a computer to determine whether an integer value is truly positive.)



Variable-length representations of integers, such as bignums, can store any integer that fits in the computers memory. Other integer datatypes are implemented with a fixed size, usually a number of bits which is a power of 2 (4, 8, 16, etc.) or a memorable number of decimal digits (e.g., 9 or 10).



In contrast, theoretical models of digital computers, such as Turing machines, typically do have infinite (but only countable) capacity.

Answer 2

An integer is a whole number. 5, 37, -4, 132 are all integers. 1/2 is not.



Angular momentum has is one of the quantities that (on the atomic level) comes in chunks. That is, the values go up by definite amounts, but nothing in between.



Electric charge also comes in chunks. The energy levels in an atom go by chunks.



The smallest nonzero amount of angular momentum a system can have is related to a value called

Plank's constant=

h=6.62*10^-23 J s



http://en.wikipedia.org/wiki/Plank%27s_constant.



smallest angular momentum=(1/2) h/(2 π).



Now, if the angular momentum goes like

n*h/(2 π)

where n=...,-3,-2,-1,0,1,2,3...

then we say we have an "integer" amount of angular momentum.



If it goes like

(n/2)*h/(2 π)

where n=...,-3,-1,1,3...

then we say we have half-integer angular momentum.



There is a certain quantity associated with angular momentum called spin. The cartoon of spin is the idea that the fundamental particle (like the electron) is somehow spinning about its axis. This picture isn't terrible but it really isn't true.



Anyway, some particles, like the electron, have 1/2 integer spin. They are called Fermions, after the Italian physicist Enrico Fermi.

http://en.wikipedia.org/wiki/Enrico_Fermi



Some particles, like the photon, have integer spin. Those are called bosons, after the Indian Satyendra physicist Bose

http://en.wikipedia.org/wiki/Satyendra_Nath_Bose



Fermions exclude each other from occupying, roughly speaking, the same space. Technically speaking, they can't have the same set of quantum numbers as another fermion.



Bosons, on the other hand, prefer to be social. If one photon passes by an atom ready to emit another photon of the same energy, sometimes it will do so in a way that exactly matches the first photon. If there are a bunch of photons all together, then the odds go up for an excited atom to emit a photon that matches. This is the basic idea behind the laser.







The concept of spin has subtleties that are pretty weird, one of which is a rotation of 360° only gets an electron wave 1/2 of the way around. It needs another 360° to be back in phase.



Whatever this spin is, along with ordinary angular momentum, the total angular momentum is conserved.

Answer 3

particularly The term" Spin "in particle physics is deceptive. It has not something to do with the comparable theory of a spining precise or spining of the Planet Earth.. Particle Physics by using Spin ability that a Revolving micromass posesses an Angular momentum that's comparable to the made from the rotatational power of the particle and the era of the particle. The momentum of an electron in is equilibrium point is defined as "h" that's planck consistent. With that momentum ,the electron strikes as a million/137 fraction of the fee of sunshine. The Ratio of the fee of the electron at that momentum to the fee of sunshine is termed the "positive shape consistent "of the Electron interior the Atom. because of the fact the mains flow physics international believes taht a photon is a mathematical build in dicating the flexibility fee of sunshine flux falling on a floor. Giving a Spin to a photon would be deceptive with regard to the character of sunshine. Gravitons are chimerical debris. it particularly is its an imaginary particle that became into set in physics to describe specific interactions of atomic uncomplicated debris interior the Nucleus of the Atom. The Electron Spins yet its an imperative of rotating basic micromass debris forming the form of the Electron. So if Spin in particle physics ability a rotation expressed as angular momentum ,then the spin of a million/2 would ability that its a million/2 of its equilbrium angular momentum= which may be" h /2."(Planck 's consistent divided by using 2) be conscious ; The classical radius of the Electron is calculated by using placing the electrostatic gravitational power of the Electron equivalent that of sunshine. the rest is purely arithmetic. that's the simplest clarification that would take transport of with out summary mathermatics and manifolds. different sensible you are able to seach internet or library books on particle physics to acquire greater complicated information and definitions.