I. Mous

Radiation damage in the LHCb vertex locator

LHCb is a dedicated experiment to study New Physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The beauty and charm hadrons are identified through their flight distance in the Vertex Locator (VELO), and hence the detector is critical for both the trigger and offline physics analyses. Due to their close proximity to the LHC beam the VELO sensors are exposed to higher ftuences than those of any other LHC subdetector. These proceedings present the primary results from radiation damage studies performed from the start of LHC data taking until late 2012. They include the first observation of type-inversion at the LHC, the highest statistics measurement of the silicon effective band gap after irradiation, and the observation of a radiation-induced charge loss effect due to the presence of a second metal layer.

First observation of the decay B-bar^0_s -> D^0 K^{*0} and a measurement of the ratio of branching fractions B( B^0_s -> D^0 K^{*0})/B( B-bar^0 -> D^0 \rho^0)

The first observation of the decay

Measurements of the branching fractions for B{sub (s)}{yields}D{sub (s)}{pi}{pi}{pi} and {Lambda}{sub b}{sup 0}{yields}{Lambda}{sub c}{sup +}{pi}{pi}{pi}

\bar{B}^0_s \to D^0 K^{*0}

Measurement of sigma (pp -> b(b)over-barX) at root s=7 TeV in the forward region

using

First LHC beam induced tracks reconstructed in the LHCb VELO

pp

First spatial alignment of the LHCb VELO and analysis of beam absorber collision data

data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb

Ageing in the LHCb outer tracker: Aromatic hydrocarbons and wire cleaning

^{-1}

Ageing in the LHCb outer tracker: Phenomenon, culprit and effect of oxygen

, is reported. A signal of

K+K- lifetime

34.4 \pm 6.8

D^0 \rho^0)

events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The