Skip to content

Titans Cross Swords On CPT Violation

March 16, 2011

I (T.D.) arrived late today in the conference hall, since I spent the morning in Padova attending the graduation of two PhD students from my group. As Angela and Luca already lamented, the weather is horrible to shitty today, and I drove my car for 40 kilometers breaking at least a dozen rules of the road. I expect my lifetime on the wheel in days such as this one to be quite small, maybe of the order of 1000 driving hours. We will see about that.

As I got in the hall, I listened to the conclusions of the talk by Maltoni on non-standard interactions from atmospheric neutrino interactions. There followed an interesting exchange with two old HEP titans: Rubbia and Altarelli. Here is a transcript.

C. Rubbia (to the speaker): I know very little to nothing about this, but I think that one cannot describe CPT with a local interaction, and thus it is not meaningful to discuss a 2.4 sigma discrepancy (Minos, in neutrino vs antineutrino oscillation parameters) in this context.

G. Altarelli (sitting two seats away from Carlo, and replying for the speaker): but maybe the neutrino mass is determined by physics at the Planck scale, and there the physics might not be local. There could be a CPT violation there.

C. Rubbia: Well, I do not need to understand these models until you discover it, so good luck…

Advertisements
2 Comments leave one →
  1. March 16, 2011 6:22 pm

    Hello, there!!!!!!!

Trackbacks

  1. “Sterile Neutrino Fits” by Carlo Giunti « neutel11

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: