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- Newsgroups: sci.physics
- Path: sparky!uunet!utcsri!helios.physics.utoronto.ca!dooley
- From: dooley@helios.physics.utoronto.ca (Kevin Dooley)
- Subject: Re: Vector Bosons?
- Message-ID: <BsxHtJ.B8p@helios.physics.utoronto.ca>
- Sender: news@helios.physics.utoronto.ca (News Administrator)
- Organization: University of Toronto Physics/Astronomy/CITA
- References: <d==y5bh@rpi.edu>
- Date: Thu, 13 Aug 1992 15:32:06 GMT
- Lines: 25
-
- In article <d==y5bh@rpi.edu> caer@iear.arts.rpi.edu (Charlie Figura) writes:
- >
- >Perhaps some of you brilliant minds out there can explain a thing
-
- I hope I'll do instead....
-
- >to me... somewhere (dont ask me, I dont know where) I heard of such
- >a thing called a vector boson. Now, I understand what bosons are,
- >i.e, particles that obey the Bose-Einstein statistics. I don't know,
- >however, what a *vector* boson is.
-
- In a nutshell, the 'vector' refers to the angular momentum of the particle.
- A vector transforms under Lorentz transformations according to certain rules
- which you can find in any book on high energy physics. In particular, a
- vector boson has spin of 1 (in units of hbar). A scalar has spin 0, a
- tensor has spin 2. The term also implies a certain parity. If I reflect
- a vector in the mirror I get a vector of the same length pointing in the
- opposite direction so a vector boson such as a photon or a W or Z has
- negative parity. Tensors and scalars have positive parity. A particle
- with the wrong parity gets 'pseudo' tacked on in front. So, for example
- a pion which has zero spin but negative parity is called a 'pseudoscalar'
- while a b meson (not B, but b) which has spin 1 and positive parity is
- called a 'pseudovector'.
-
- Kevin
-