Determining a mediating force of an Interaction


by Wornstrom!!
Tags: determining, force, interaction, mediating
Wornstrom!!
Wornstrom!! is offline
#1
Feb21-12, 06:13 PM
P: 1
What kind of force mediates the reaction:

K- + alpha(ppnn) -> pi- + "hypernucleus"(ppn lambda)
s(u) + (uud + uud + udd + udd) -> d(u) + (uud + uud + udd + uds)
(u) is anti u

We need to explain which force mediates this reaction.

I am pretty sure it does not involve the weak force because there is no flavor change of any quarks, they are just rearranged. I am leaning towards the strong force because the interaction involves nucleons although I know that is a bad argument. Is there a change in isospin? In what interactions is isospin conserved and what interaction allow a change in isospin?

So I am leaning towards strong interaction but I really have no reason to support this
Phys.Org News Partner Physics news on Phys.org
Physicists design quantum switches which can be activated by single photons
'Dressed' laser aimed at clouds may be key to inducing rain, lightning
Higher-order nonlinear optical processes observed using the SACLA X-ray free-electron laser
mathman
mathman is offline
#2
Feb22-12, 03:36 PM
Sci Advisor
P: 5,937
Since the reaction involves quarks being rearranged it has to be the strong force.


Register to reply

Related Discussions
General Relativity and a Force Mediating Graviton? Special & General Relativity 4
Determining force on an electron, possibly easy force problem(PLEASE HELP) Introductory Physics Homework 3
electric force problem (determining unknown position to make zero net force) Introductory Physics Homework 4
mediating particles General Physics 5
Properties of force mediating bosons General Physics 0