UPPSALA UNIVERSITY : Department of Radiation Sciences
Uppsala University

PhD Position

Announcement of an AIM PhD position at the sub-department of High Energy Physics at Uppsala University

Particle Physics data analysis in the ATLAS Experiment at CERN using and optimizing SweGrid, in particular its data storage function

CERN’s new facility for particle physics experimentation, the Large Hadron Collider LHC, will start operation in 2007. Uppsala University is currently taking part in the preparation of the ATLAS experiment at LHC. In order to meet the exceptionally large demands on compute capacity that LHC experimentation will imply, the Uppsala High Energy Collider Physics Group has initiated the creation of a Swedish Data Grid, named SweGrid. This grid is by now in full operation with six nodes, each consisting of a cluster of 100 PCs and 10 Terabyte disk storage, located in Umeå, Uppsala, Stockholm, Linköping, Göteborg and Lund. SweGrid’s storage capacity will be increased in 2005.

A PhD post is currently announced with the aim of undertaking a demanding particle physics analysis investigation in ATLAS for which the high potential of the grid computational technique represents particular opportunities. Investigations of predictions made by Supersymmetry are typically of that kind, as they often require specification of many model parameters. The Uppsala High Energy Collider Physics Group has extensive experience of data analysis related to searches for charged Higgs bosons. The existence of charged Higgs is predicted by Supersymmetry and the discovery of charged scalar particles would, under all circumstances, be a definite proof for physics beyond the Standard Model of Particle Physics.

In addition to analyzing simulated — and, later, experimental — data with the aim of making particle physics discoveries, the intension is to optimize, in connection with the physics analysis project, the production, distribution and storage of ATLAS data. The study should be based on the use of SweGrid. Among the problems that may be studied are how to best distribute geographically, in an adaptable and scalable way, the production and storage of data and, subsequently, how to arrive at automatic optimization of this distribution. Other possible goals are to find optimal ways of cataloging the produced data with the aim to maximize their accessibility for analysis of specific combinations of different data sets.

The position is offered for 4 years. The salary levels for the 4 years are approximately 1.550, 1.950, 2.150 and 2.200 euros/month, respectively. The task is to perform research and studies with the aim of passing a PhD examination in High Energy Physics at Uppsala University. Part of the time will be spent at CERN. There will be some opportunities to contribute to the teaching at the university as a teaching assistant.

More information about the position is given by Prof. Tord Ekelöf, phone +46 18 471 38 47 or +46 70 425 02 10. See also Physics at LHC.

A motivated letter of application accompanied by a CV and a transcript of the applicant’s undergraduate studies. Applications should be sent to Inger Ericson, Uppsala University, Department of Radiation Sciences, Box 535, SE-751 21 Uppsala, Sweden, or sent by fax to +46 18 471 35 13, no later than September 15 2005. The applicant should ask one, alternatively two, of her or his teachers or supervisors to send, by the same date, a brief letter of reference by email, post or fax to the same address.