Dear all,

Suzanne does not object against a Vidyo broadcast.
We can use the same Nikhef Bfys Meeting (Vidyo room)
that I booked for Friday 21 June.
Please, join from the LHCb homepage -> Meetings of the week -> Friday 10h
The PIN is 1328

Best regards.
 Tjeerd


On Tue, 18 Jun 2013, Maurizio Martinelli wrote:

Hi Suzanne,

Good Luck!

Is there any plan to broadcast the presentation on Vidyo for those at CERN?

Thanks,

Maurizio

--

Maurizio Martinelli

LHCb Nikhef

CERN, office 13-1-26

CH-1211 Genève

Tel: +41 (0)227676309

On Jun 18, 2013, at 4:05 PM, Suzanne Klaver wrote:

     Dear all,

I am very happy to tell you that I will be presenting my master thesis

on Thursday June 20! I have searched for long-lived neutralinos and,

unfortunately, not found any. Nevertheless, I would very much

appreciate your presence during the presentation at 15:00 in H331 at

Nikhef.

Cheers,

Suzanne

A Search for Long-Lived Neutralinos at LHCb:

Supersymmetric (SUSY) extensions of the Standard Model (SM) predict

the existence of neutral fermions called neutralinos.  A search is

performed for neutralinos in the scenario of an R-parity violating

model, in which supersymmetry is broken through gravitational

interactions (BRpV-mSUGRA). The LSP is the neutralino and has a 71.2

ps lifetime, decaying into SM particles. We present the search for

long-lived neutralinos using the 2011 data set of the LHCb detector at

CERN in pp collisions at \sqrt{s}=7 TeV, with an integrated luminosity

of  1.0 fb^{-1}. We look for a signature with a displaced vertex with

two jets and a muon. By performing a cut-based analysis, an upper

limit is set on 2 \times \sigma \times BR < 3.3 pb at 95% confidence

level, with a relative systematic uncertainty of 8.3%. This

corresponds to approximately 7 times the predicted SUSY cross section.

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