Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2.

Physics

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https://doi.org/10.1140/epjc/s10052-007-0304-9
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Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2. / Abdallah, J.; Sopczak, Andre; The DELPHI Collaboration, et al.
In: European Physical Journal C: Particles and Fields, Vol. 51, No. 2, 07.2007, p. 249-269.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Abdallah, J, Sopczak, A & The DELPHI Collaboration, EA 2007, 'Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2.', European Physical Journal C: Particles and Fields, vol. 51, no. 2, pp. 249-269. https://doi.org/10.1140/epjc/s10052-007-0304-9

APA

Abdallah, J., Sopczak, A., & The DELPHI Collaboration, E. A. (2007). Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2. European Physical Journal C: Particles and Fields, 51(2), 249-269. https://doi.org/10.1140/epjc/s10052-007-0304-9

Vancouver

Abdallah J, Sopczak A, The DELPHI Collaboration EA. Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2. European Physical Journal C: Particles and Fields. 2007 Jul;51(2):249-269. doi: 10.1140/epjc/s10052-007-0304-9

Author

Abdallah, J. ; Sopczak, Andre ; The DELPHI Collaboration, et al. / Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2. In: European Physical Journal C: Particles and Fields. 2007 ; Vol. 51, No. 2. pp. 249-269.

Bibtex

@article{59117a2766e34754a45e19fd92dfec83,

title = "Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2.",

abstract = "In the reaction e+e-→WW→(q1{\=q}2)(q3{\=q}4) the usual hadronization models treat the colour singlets q1{\=q}2 and q3{\=q}4 coming from two W bosons independently. However, since the final state partons may coexist in space and time, cross-talk between the two evolving hadronic systems may be possible during fragmentation through soft gluon exchange. This effect is known as colour reconnection. In this article the results of the investigation of colour reconnection effects in fully hadronic decays of W pairs in DELPHI at LEP are presented. Two complementary analyses were performed, studying the particle flow between jets and W mass estimators, with negligible correlation between them, and the results were combined and compared to models. In the framework of the SK-I model, the value for its κ parameter most compatible with the data was found to be: κSK-I=2.2+2.5 -1.3 corresponding to the probability of reconnection to be in the range at 68% confidence level with its best value at 0.52.",

author = "J. Abdallah and Andre Sopczak and {The DELPHI Collaboration}, {et al.}",

year = "2007",

month = jul,

doi = "10.1140/epjc/s10052-007-0304-9",

language = "English",

volume = "51",

pages = "249--269",

journal = "European Physical Journal C: Particles and Fields",

issn = "1434-6044",

publisher = "SPRINGER",

number = "2",

}

RIS

TY - JOUR

T1 - Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2.

AU - Abdallah, J.

AU - Sopczak, Andre

AU - The DELPHI Collaboration, et al.

PY - 2007/7

Y1 - 2007/7

N2 - In the reaction e+e-→WW→(q1q̄2)(q3q̄4) the usual hadronization models treat the colour singlets q1q̄2 and q3q̄4 coming from two W bosons independently. However, since the final state partons may coexist in space and time, cross-talk between the two evolving hadronic systems may be possible during fragmentation through soft gluon exchange. This effect is known as colour reconnection. In this article the results of the investigation of colour reconnection effects in fully hadronic decays of W pairs in DELPHI at LEP are presented. Two complementary analyses were performed, studying the particle flow between jets and W mass estimators, with negligible correlation between them, and the results were combined and compared to models. In the framework of the SK-I model, the value for its κ parameter most compatible with the data was found to be: κSK-I=2.2+2.5 -1.3 corresponding to the probability of reconnection to be in the range at 68% confidence level with its best value at 0.52.

AB - In the reaction e+e-→WW→(q1q̄2)(q3q̄4) the usual hadronization models treat the colour singlets q1q̄2 and q3q̄4 coming from two W bosons independently. However, since the final state partons may coexist in space and time, cross-talk between the two evolving hadronic systems may be possible during fragmentation through soft gluon exchange. This effect is known as colour reconnection. In this article the results of the investigation of colour reconnection effects in fully hadronic decays of W pairs in DELPHI at LEP are presented. Two complementary analyses were performed, studying the particle flow between jets and W mass estimators, with negligible correlation between them, and the results were combined and compared to models. In the framework of the SK-I model, the value for its κ parameter most compatible with the data was found to be: κSK-I=2.2+2.5 -1.3 corresponding to the probability of reconnection to be in the range at 68% confidence level with its best value at 0.52.

U2 - 10.1140/epjc/s10052-007-0304-9

DO - 10.1140/epjc/s10052-007-0304-9

M3 - Journal article

VL - 51

SP - 249

EP - 269

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 2

ER -

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