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Projects / Programmes source: ARIS

Experimental Tests of the Electroweak Interaction

Research activity

Code Science Field Subfield
1.02.06  Natural sciences and mathematics  Physics  Experimental physics of elementary particles 

Code Science Field
P210  Natural sciences and mathematics  Elementary particle physics, quantum field theory 
P211  Natural sciences and mathematics  High energy interactions, cosmic rays 
Keywords
elementary particle physics, electroweak interactions, detectors, Ring Imaging Cerenkov counters
Evaluation (rules)
source: COBISS
Researchers (16)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  09081  PhD Vladimir Cindro  Physics  Researcher  1997 - 2000  1,569 
2.  15716  Jurij Eržen    Researcher  1999 - 2000 
3.  12092  PhD Boštjan Golob  Physics  Researcher  1999 - 2000  780 
4.  01108  PhD Gabrijel Kernel  Physics  Researcher  1998 - 2000  436 
5.  11598  PhD Samo Korpar  Physics  Researcher  1998 - 2000  817 
6.  08725  PhD Peter Križan  Physics  Head  1998 - 2000  1,002 
7.  08532  PhD Ervin Križnič  Physics  Researcher  1997 - 2000  195 
8.  04361  Erik Margan    Researcher  1999 - 2000  34 
9.  04763  PhD Marko Mikuž  Physics  Researcher  1998 - 2000  1,615 
10.  11775  PhD Tomaž Podobnik  Physics  Researcher  1997 - 2000  381 
11.  01104  PhD Aleš Stanovnik  Physics  Researcher  1997 - 2000  213 
12.  03947  PhD Marko Starič  Physics  Researcher  1997 - 2000  741 
13.  08308  PhD Danilo Zavrtanik  Physics  Researcher  1998 - 2000  1,362 
14.  11985  PhD Marko Zavrtanik  Physics  Researcher  1998 - 2000  1,024 
15.  10650  PhD Tomi Živko  Physics  Researcher  1998 - 2000  196 
16.  12750  PhD Dejan Žontar  Physics  Researcher  1997 - 2000  350 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,038 
Abstract
Precision measurements of the key parameters of the standard model are being carried out at the DELPHI and HERA-B spectrometers.The DELPHI spectrometer is taking data at the largest electron positron collider in the world, LEP, operating at European Laboratory for Particle Physics CERN in Geneva. There, electrons and positrons collide at energies between 90 GeV and 190 GeV, producing charged and neutral weak bosons. Weak bosons meditate one of the four elementary forces in nature, the weak force (beside gravitational, electromagnetic and strong force). By analysing particles, arising from the weak boson decays, one can test predictions of the Standard Model, describing the weak, electromagnetic and strong interactions. LEP collider is a perfect environment for studies of electroweak interactions among particles composed of heavy b quarks. At energies above 160 GeV pairs of charged weak bosons are produced in electron positron collisions. Measurements of their mass and production cross-section enable a deeper understanding of elementary laws of nature. Beside this, at the energies never reached before in the electron positron collisions, one can search for experimentally unconfirmed particles, predicted by theories of Supersymmetry. With the HERA-B spectrometer, currently under preparation at the DESY laboratory in Hamburg, we intend to measure the CP violation in the systemof neutral B mesons, as well as parameters of mixing in the system of neutral B and D systems. The source of B and D mesons are the interactions of protons with a momentum of 920 GeV/c with a wire target in the beam halo. The reaction products are detected by a sophisticated system of silicon and wire chamber based tracking detectors, an electromagnetic calorimeter, and a ring imaging Cerenkov counter (RICH). In the preparation phase of the experiment the main responsibility of our group is preparation and commissioning of the ring imaging Cerenkov counter, which was the subject of an extensive R+D over several years.
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