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Search for heavy long-lived particles that decay to photons at CDF II.

Abstract:

We present the first search for heavy, long-lived particles that decay to photons at a hadron collider. We use a sample of gamma + jet + missing transverse energy events in pp[over] collisions at square root[s] = 1.96 TeV taken with the CDF II detector. Candidate events are selected based on the arrival time of the photon at the detector. Using an integrated luminosity of 570 pb(-1) of collision data, we observe 2 events, consistent with the background estimate of 1.3+/-0.7 events. While our ...

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Publication status:
Published

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Journal:
Physical Review Letters More from this journal
Volume:
99
Issue:
12
Pages:
121801
Publication date:
2007-09-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:400
UUID:
uuid:9085548a-0f44-4474-a19b-179cd8cd59fe
Local pid:
pubs:400
Source identifiers:
400
Deposit date:
2012-12-19

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