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Search for charginos nearly mass-degenerate with the lightest neutralino

Abstract:

A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies between 130 and 183 GeV. The signature of a photon at high transverse momentum radiated from the initial state reduces the two-photon background to acceptable rates, thus making the mass differences between a few hundred MeV/c2 and 3 GeV/c2 detectable. In very nearly degenerate scenarios, the lifet...

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Publication status:
Published

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Publisher copy:
10.1007/s100520050610

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Journal:
EUROPEAN PHYSICAL JOURNAL C
Volume:
11
Issue:
1
Pages:
1-17
Publication date:
1999-11-01
DOI:
ISSN:
1434-6044
Source identifiers:
9187
Language:
English
Pubs id:
pubs:9187
UUID:
uuid:cc3e7112-6533-48d4-a298-076a4da38217
Local pid:
pubs:9187
Deposit date:
2012-12-19

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