Precision measurement of the mass difference between light nuclei and anti-nuclei with the ALICE experiment at the LHC
Collaboration
22 pages
Published in:
- Nature Phys. 11 (2015) 10, 811-814
- Published: 2015and
- Published: Aug 17, 2015
e-Print:
- 1508.03986 [nucl-ex]
DOI:
Report number:
- ALICE-PUBLIC-2015-002,
- CERN-PH-EP-2015-035
Experiments:
Citations per year
Abstract: (CDS)
We report on a measurement of the difference between the mass-over-charge ratio of deuteron (d) and anti-deuteron (), and and nuclei, carried out with ALICE (A Large Ion Collider Experiment) in Pb-Pb collisions at a centre-of-mass energy per nucleon pair . Our measurement yields and . Combining these results with existing measurements of the masses of the (anti-)nucleons, the relative binding energy differences are extracted, and . These results test, to an unprecedented precision, the CPT invariance in the sector of light nuclei.Note:
- 16 pages, 3 captioned figures, authors from page 11, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/1850
- QCD
- relativistic heavy ion physics
- conservation law tests
- mass difference
- light nucleus
- nucleus: mass
- antinucleus
- precision measurement
- parity: transformation
- particle: exchange
References(30)
Figures(3)
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