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SUMMARY:Perturbative tools in the LHC era - Dr Maria Ubiali (RWTH Aachen &
 amp\; HEP Group\, Cavendish Laboratory)
DTSTART:20130604T130000Z
DTEND:20130604T134000Z
UID:TALK45562@talks.cam.ac.uk
CONTACT:Leona Hope-Coles
DESCRIPTION:The large amount of high-quality measurements presented by the
  experimental collaborations at the Large Hadron Collider (LHC) provides a
 n invaluable source of our understanding of elementary particles. It is of
  paramount importance to dispose of accurate theoretical calculations to b
 e compared with the increasingly precise experimental data. \nOne of the l
 imiting factors in the accuracy of any theoretical prediction at the LHC i
 s the uncertainty on Parton Distribution Functions (PDFs). The latter prov
 ide information of the proton's content in terms of its elementary constit
 uents\, quarks and gluons. A further limiting factor\, which concerns a ph
 enomenologically relevant subset of predictions\, is the theoretical ambig
 uity that arises when dealing with processes involving heavy quarks. \nIn 
 this seminar both points are thoroughly addressed. In the first part of th
 e seminar\, a novel method for an accurate and statistically-sound determi
 nation of PDFs is described. In the second part\, a recent analysis\, whic
 h sheds light on a number of puzzles concerning bottom-initiated processes
  at the LHC\, is presented. 
LOCATION:Small Lecture Theatre\, Cavendish Laboratory\, Department of Phys
 ics
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