Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets

G Abbiendi; Shaun Ashby; Ian Bloodworth; Paul Bright-Thomas; David Charlton; Christopher Hawkes; Roger Homer; Predrag Jovanovic; Alun Lloyd; Thomas McMahon; Stephen O'Neale; Scott Talbot; Miriam Watson; Peter Watkins; Alan Watson; Nigel Watson; John Wilson

doi:10.1007/s100520100715

Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets

G Abbiendi, Shaun Ashby, Ian Bloodworth, Paul Bright-Thomas, David Charlton, Christopher Hawkes, Roger Homer, Predrag Jovanovic, Alun Lloyd, Thomas McMahon, Stephen O'Neale, Scott Talbot, Miriam Watson, Peter Watkins, Alan Watson, Nigel Watson, John Wilson

Physics and Astronomy

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Abstract

Bose-Einstein correlations in pairs of charged kaons produced in a sample of 3.9 million hadronic Z(0) decays have been measured with the OPAL experiment at LEP. Charged kaons were identified in the central tracking detector using their specific energy loss in the drift chamber gas. The correlation function was studied in two-jet events using a double ratio, formed by the number of like-sign pairs normalised by a reference sample in the data, divided by the same ratio in a Monte Carlo simulation. The enhancement at small values of the four-momentum difference of the pair was parametrised using a Gaussian function. The parameters of the Bose-Einstein correlations were measured to be a lambda = 0.82 +/-0.22(-0.12)(+0.17) for the strength and R-0 = 0.56 +/-0.08(-0.06)(+0.08) fm for the kaon source radius, where the first errors are statistical and the second systematic. Corrections for final-state interactions are discussed.

Original language	English
Pages (from-to)	23-32
Number of pages	10
Journal	European Physical Journal C
Volume	21
Issue number	1
DOIs	https://doi.org/10.1007/s100520100715
Publication status	Published - 1 Jun 2001

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Abbiendi, G., Ashby, S., Bloodworth, I., Bright-Thomas, P., Charlton, D., Hawkes, C., Homer, R., Jovanovic, P., Lloyd, A., McMahon, T., O'Neale, S., Talbot, S., Watson, M., Watkins, P., Watson, A., Watson, N., & Wilson, J. (2001). Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets. European Physical Journal C, 21(1), 23-32. https://doi.org/10.1007/s100520100715

@article{dedae2749f344109ab52c62fe6b8204e,

title = "Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets",

abstract = "Bose-Einstein correlations in pairs of charged kaons produced in a sample of 3.9 million hadronic Z(0) decays have been measured with the OPAL experiment at LEP. Charged kaons were identified in the central tracking detector using their specific energy loss in the drift chamber gas. The correlation function was studied in two-jet events using a double ratio, formed by the number of like-sign pairs normalised by a reference sample in the data, divided by the same ratio in a Monte Carlo simulation. The enhancement at small values of the four-momentum difference of the pair was parametrised using a Gaussian function. The parameters of the Bose-Einstein correlations were measured to be a lambda = 0.82 +/-0.22(-0.12)(+0.17) for the strength and R-0 = 0.56 +/-0.08(-0.06)(+0.08) fm for the kaon source radius, where the first errors are statistical and the second systematic. Corrections for final-state interactions are discussed.",

author = "G Abbiendi and Shaun Ashby and Ian Bloodworth and Paul Bright-Thomas and David Charlton and Christopher Hawkes and Roger Homer and Predrag Jovanovic and Alun Lloyd and Thomas McMahon and Stephen O'Neale and Scott Talbot and Miriam Watson and Peter Watkins and Alan Watson and Nigel Watson and John Wilson",

year = "2001",

month = jun,

day = "1",

doi = "10.1007/s100520100715",

language = "English",

volume = "21",

pages = "23--32",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer",

number = "1",

}

Abbiendi, G, Ashby, S, Bloodworth, I, Bright-Thomas, P, Charlton, D, Hawkes, C, Homer, R, Jovanovic, P, Lloyd, A, McMahon, T, O'Neale, S, Talbot, S, Watson, M, Watkins, P, Watson, A , Watson, N & Wilson, J 2001, 'Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets', European Physical Journal C, vol. 21, no. 1, pp. 23-32. https://doi.org/10.1007/s100520100715

TY - JOUR

T1 - Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets

AU - Abbiendi, G

AU - Ashby, Shaun

AU - Bloodworth, Ian

AU - Bright-Thomas, Paul

AU - Charlton, David

AU - Hawkes, Christopher

AU - Homer, Roger

AU - Jovanovic, Predrag

AU - Lloyd, Alun

AU - McMahon, Thomas

AU - O'Neale, Stephen

AU - Talbot, Scott

AU - Watson, Miriam

AU - Watkins, Peter

AU - Watson, Alan

AU - Watson, Nigel

AU - Wilson, John

PY - 2001/6/1

Y1 - 2001/6/1

N2 - Bose-Einstein correlations in pairs of charged kaons produced in a sample of 3.9 million hadronic Z(0) decays have been measured with the OPAL experiment at LEP. Charged kaons were identified in the central tracking detector using their specific energy loss in the drift chamber gas. The correlation function was studied in two-jet events using a double ratio, formed by the number of like-sign pairs normalised by a reference sample in the data, divided by the same ratio in a Monte Carlo simulation. The enhancement at small values of the four-momentum difference of the pair was parametrised using a Gaussian function. The parameters of the Bose-Einstein correlations were measured to be a lambda = 0.82 +/-0.22(-0.12)(+0.17) for the strength and R-0 = 0.56 +/-0.08(-0.06)(+0.08) fm for the kaon source radius, where the first errors are statistical and the second systematic. Corrections for final-state interactions are discussed.

AB - Bose-Einstein correlations in pairs of charged kaons produced in a sample of 3.9 million hadronic Z(0) decays have been measured with the OPAL experiment at LEP. Charged kaons were identified in the central tracking detector using their specific energy loss in the drift chamber gas. The correlation function was studied in two-jet events using a double ratio, formed by the number of like-sign pairs normalised by a reference sample in the data, divided by the same ratio in a Monte Carlo simulation. The enhancement at small values of the four-momentum difference of the pair was parametrised using a Gaussian function. The parameters of the Bose-Einstein correlations were measured to be a lambda = 0.82 +/-0.22(-0.12)(+0.17) for the strength and R-0 = 0.56 +/-0.08(-0.06)(+0.08) fm for the kaon source radius, where the first errors are statistical and the second systematic. Corrections for final-state interactions are discussed.

U2 - 10.1007/s100520100715

DO - 10.1007/s100520100715

M3 - Article

SN - 1434-6044

VL - 21

SP - 23

EP - 32

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

ER -

Bose-Einstein correlations in K⁺⁻K⁺⁻ pairs from Z° decays into two hadronic jets

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