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Measurement of the ...
Measurement of the ϕ→π0e+e− transition form factor with the KLOE detector
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Anastasi, Antonio (author)
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- Caldeira Balkeståh, Li (author)
- Uppsala universitet,Kärnfysik
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- Cao, Bo (author)
- Uppsala universitet,Kärnfysik
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- Heijkenskjöld, Lena (author)
- Uppsala universitet,Kärnfysik
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- Ikegami Andersson, Walter (author)
- Uppsala universitet,Kärnfysik
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- Johansson, Tord (author)
- Uppsala universitet,Kärnfysik
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- Kupsc, Andrzej (author)
- Uppsala universitet,Kärnfysik
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- Papenbrock, Michael (author)
- Uppsala universitet,Kärnfysik
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- Wolke, Magnus (author)
- Uppsala universitet,Kärnfysik
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(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- English.
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In: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 757, s. 362-367
- Related links:
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https://uu.diva-port... (primary) (Raw object)
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- A measurement of the vector to pseudoscalar conversion decay ϕ→π0e+e− with the KLOE experiment is presented. A sample of ∼9500 signal events was selected from a data set of 1.7 fb−1 of e+e− collisions at s√∼mϕ collected at the DAΦNE e+e− collider. These events were used to obtain the first measurement of the transition form factor |Fϕπ0(q2)| and a new measurement of the branching ratio of the decay: BR(ϕ→π0e+e−)=(1.35±0.05+0.05−0.10)×10−5. The result improves significantly on previous measurements and is in agreement with theoretical predictions.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- e(+)e(-) collisions; Conversion decay; Transition form factor
Publication and Content Type
- ref (subject category)
- art (subject category)
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