Recent content by ozon

Thank you very much for your reply. Maybe this link is useful for you. http://www.insectnation.org/howto/academic-software

I draw Feynman diagrams in JaxoDraw. But If I draw gluon line up to down or down to up, I get different results for gluon lines. I share a picture to explain my problem. Are these two diagrams the same? http://img809.imageshack.us/img809/3184/rq9z.jpg

In David Griffiths' Introduction to Elemantary Particles book, Problem 1.8 makes me confused. It wants me to write possible decay modes of Ω¯. In the parentheses, there is an explanation.It says "The Ω¯ does in fact decay, but by the much slower weak interaction, which does not converse...

Your clue is very helpful for me. Thanks. It is very easy now. Area of triangle (1/2)h|V3|sin900=(1/2)|V1||V2|sinθ h|V3|=|V1xV2| h=(|V1xV2|)/|V3| Thank you everybody for your helping.

Ok. First way is not problem to find area of the triangle. But I do not know how to find area of the triangle with vectorial methods. I think second way is necessary to prove this equation. Thanks for your clues. But I need more than them.

Thanks but I do not have any idea.

Thanks. Yes, I have. But I can't solve it. h is norm of short distance between p0 and V3. So I have to use a new symbol for short distance. I want to call it as V4. h=|V4| |V4||V3|sin900=|V1xV2| V4xV3=|V1xV2| I have tried something but I have no idea. Some clues are very useful to prove...

Hello, I am new at this forum. Firstly, I want to say I am happy to be a member of this forum. English is not my native language. So I can make some grammer and other mistakes. I try to write with no mistakes. If I make mistakes for writing, I apologize. I have a question. You see a triangle...