329 research outputs found
Search for Deeply Bound Kaonic Nuclear States with AMADEUS
We briefly report on the search for Deeply Bound Kaonic Nuclear States with
AMADEUS in the Sigma0 p channel following K- absorption on 12C and outline
future perspectives for this work
Testing the Pauli Exclusion Principle for Electrons
One of the fundamental rules of nature and a pillar in the foundation of
quantum theory and thus of modern physics is represented by the Pauli Exclusion
Principle. We know that this principle is extremely well fulfilled due to many
observations. Numerous experiments were performed to search for tiny violation
of this rule in various systems. The experiment VIP at the Gran Sasso
underground laboratory is searching for possible small violations of the Pauli
Exclusion Principle for electrons leading to forbidden X-ray transitions in
copper atoms. VIP is aiming at a test of the Pauli Exclusion Principle for
electrons with high accuracy, down to the level of 10 - 10,
thus improving the previous limit by 3-4 orders of magnitude. The experimental
method, results obtained so far and new developments within VIP2 (follow-up
experiment at Gran Sasso, in preparation) to further increase the precision by
2 orders of magnitude will be presented.Comment: Proceedings DISCRETE 2012-Third Symposium on Prospects in the Physics
of Discrete Symmetries, Lisbon, December 3-7, 201
High sensitivity tests of the Pauli Exclusion Principle with VIP2
The Pauli Exclusion Principle is one of the most fundamental rules of nature
and represents a pillar of modern physics. According to many observations the
Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless,
numerous experimental investigations were performed to search for a small
violation of this principle. The VIP experiment at the Gran Sasso underground
laboratory searched for Pauli-forbidden X-ray transitions in copper atoms using
the Ramberg-Snow method and obtained the best limit so far. The follow-up
experiment VIP2 is designed to reach even higher sensitivity. It aims to
improve the limit by VIP by orders of magnitude. The experimental method,
comparison of different PEP tests based on different assumptions and the
developments for VIP2 are presented.Comment: 6 pages, 3 figures, Proceedings DISCRETE2014 Conferenc
Shedding New Light on Kaon-Nucleon/Nuclei Interaction and Its Astrophysical Implications with the AMADEUS Experiment at DAFNE
The AMADEUS experiment deals with the investigation of the low-energy
kaon-nuclei hadronic interaction at the DA{\Phi}NE collider at LNF-INFN, which
is fundamental to respond longstanding questions in the non-perturbative QCD
strangeness sector. The antikaon-nucleon potential is investigated searching
for signals from possible bound kaonic clusters, which would open the
possibility for the formation of cold dense baryonic matter. The confirmation
of this scenario may imply a fundamental role of strangeness in astrophysics.
AMADEUS step 0 consisted in the reanalysis of 2004/2005 KLOE dataset,
exploiting K- absorptions in H, 4He, 9Be and 12C in the setup materials. In
this paper, together with a review on the multi-nucleon K- absorption and the
particle identification procedure, the first results on the {\Sigma}0-p channel
will be presented including a statistical analysis on the possible accomodation
of a deeply bound stateComment: 6 pages, 2 figure, 1 table, HADRON 2015 conferenc
- …