Sunday, 12 August 2007

Model Building Month

Today the TH Institute "New Physics and the LHC" kicks off here at CERN. As the organizers put it, it will be mostly targeted to model-builders, with the participation of string theorists and collider phenomenologists. Regardless of that looming participation, the program looks quite promising. After the dog days of summer you can count on more activity in this blog in the coming weeks.

Also today, on the other end of the world began Lepton-Photon'07. I wouldn't bother to mention if not for certain rumours. Rumours of rumours, so to say. I mean the rumours of the alleged non-standard higgs signal at the Tevatron whispered from blog to blog since May. The new rumour is that the relevant multi-b channel analysis will be finally presented at that conference. In spite of the fact that there are neither photons nor leptons in the signal :-)



Update: well....nothing like that seems to have happened. My deep throat turned out shallow. So we are left to rumours and gossips for some more time....
Update #2: Finally, only CDF presented a new analysis of that channel. Their excess is 1.5 only sigma. Details in this public note, a wrap-up by Tommaso here. Now we're waiting for D0. Come on guys, dont be ashamed...

8 comments:

  1. Anonymous13 August 2007 at 15:39

    "The new rumour is that the relevant multi-b channel analysis will be finally presented at that conference."

    The PDF of the slides for "SUSY/Non SM Higgs searches" is still showing the old D0 result, so I doubt this is true....

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  2. Jester13 August 2007 at 16:53

    My hopes were based rather on the talk: Striking results from the Tevatron. What else could be striking? But there is no PDF of that one. Maybe somebody knows more?

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  3. Anonymous13 August 2007 at 17:31

    The person giving the "Striking results" talk is with CDF and works on top physics, I think....

    ReplyDelete
  4. Anonymous13 August 2007 at 20:32

    D0 didn't present any update for this channel at the Fermilab seminar last Friday. However, CDF at long last has released preliminary results which are in the SUSY/Non-SM Higgs talk. The "striking results" talk is a catchall so that both D0 and CDF can each have three speakers, it does not have any special significance.

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  5. Anonymous14 August 2007 at 20:45

    From what I know, the talk was on general CDF/D0 results -- new DDbar mixing result from CDF, Bs -> mu mu, constraints on top quark mass, two vector production, etc.

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  6. Anonymous17 August 2007 at 14:33

    This rumor mongering is getting ridiculous. I walk the trailers of both CDF and D0. There is no smoking gun. Fluctuations, sure, but there are always fluctuations. The problem with this is that any Higgs result now that has anything less then a signal will be a disappointment. This is quite unfair to the physicists involved. Unfortunately, I think this will play out exactly as we have guessed. The Tevatron has a chance at 3 sigma evidence if we combine both CDF and D0 measurements at the end of the Tevatron's life cycle.

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  7. Anonymous25 August 2007 at 19:47

    Hi jester,

    striking is the lack of fantasy of the speaker there :)))

    Cheers,
    T.

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  8. Anonymous27 August 2007 at 14:46

    Hi again,

    CDF has released their search for bg->bH->bbb recently. You can find everything in the CDF public web page. I also wrote about it today.

    Cheers,
    T.

    ReplyDelete

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