SEMINAR - Hadron mass effects to event shape power corrections

Friday January 25th 2013, 2:30 pm - Seminar room

Speaker: Vicent Mateu (IFIC)

Abstract: In my talk I will address the issue of mass effects on power correction to event shape distributions.

In particular I will define an operator that describes the effect of hadron masses on the leading 1/Q power correction. Here, Q is the scale of the hard collision. Despite the fact that different event shapes have different hadron mass dependence, we provide a simple method to identify universality classes of event shapes whose power corrections depend on a common nonperturbative parameter. We compute the anomalous dimension of the transverse velocity operator, which causes the power correction to exhibit non-trivial dependence on Q.

 

We use own and third-party cookies to improve our services by analyzing your browsing habits. If you continue browsing, we will consider that you allow us to use them. You can change the settings or get more information on our "Cookies policy".

I accept cookies from this site.