New measurement of the K+ ? p+µ+µ-decay at NA62

The NA62 Collaboration

New measurement of the K⁺ ? p⁺µ⁺µ^-decay at NA62

The NA62 Collaboration

School of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

A preliminary result of a new measurement of the K+ ?p+µ+µ- form factor parameters and branching fraction using the NA62 Run 1 data set collected in the years 2016 - 2018 is presented. From the observed sample of 28011 K+ ? p+µ+µ- event candidates with negligible background contamination, the form factor parameters a+ = -0.592 ± 0.013stat ± 0.007syst ± 0.001ext and b+ = -0.699 ± 0.046stat ± 0.035syst ± 0.003ext, and the branching fraction B(K+ ? p+µ+µ-) = (9.27 ± 0.07stat ± 0.08syst ± 0.04ext) × 10-8 are obtained.

Original language	English
Title of host publication	Proceedings of Science
Volume	390
Publication status	Published - 15 Apr 2021
Event	40th International Conference on High Energy Physics, ICHEP 2020 - Virtual, Prague, Czech Republic Duration: 28 Jul 2020 → 6 Aug 2020

Publication series

Name	Proceedings of Science
Publisher	SISSA
ISSN (Print)	1824-8039

Conference

Conference	40th International Conference on High Energy Physics, ICHEP 2020
Country/Territory	Czech Republic
City	Virtual, Prague
Period	28/07/20 → 6/08/20

Bibliographical note

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© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

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Cite this

@inproceedings{4231f46bac5a4d12b34d89f6fb26e95e,

title = "New measurement of the K+ ? p+µ+µ-decay at NA62",

abstract = "A preliminary result of a new measurement of the K+ ?p+µ+µ- form factor parameters and branching fraction using the NA62 Run 1 data set collected in the years 2016 - 2018 is presented. From the observed sample of 28011 K+ ? p+µ+µ- event candidates with negligible background contamination, the form factor parameters a+ = -0.592 ± 0.013stat ± 0.007syst ± 0.001ext and b+ = -0.699 ± 0.046stat ± 0.035syst ± 0.003ext, and the branching fraction B(K+ ? p+µ+µ-) = (9.27 ± 0.07stat ± 0.08syst ± 0.04ext) × 10-8 are obtained.",

author = "{The NA62 Collaboration} and Lubos Bician and R. Aliberti and F. Ambrosino and R. Ammendola and B. Angelucci and A. Antonelli and G. Anzivino and R. Arcidiacono and T. Bache and A. Baeva and D. Baigarashev and M. Barbanera and J. Bernhard and A. Biagioni and C. Biino and A. Bizzeti and T. Blazek and B. Bloch-Devaux and V. Bonaiuto and M. Boretto and M. Bragadireanu and D. Britton and F. Brizioli and Brunetti, {M. B.} and D. Bryman and F. Bucci and T. Capussela and J. Carmignani and A. Ceccucci and P. Cenci and V. Cerny and C. Cerri and B. Checcucci and A. Conovaloff and Gil, {E. Cortina} and M. Corvino and F. Costantini and Ramusino, {A. Cotta} and D. Coward and G. D'Agostini and J. Dainton and P. Dalpiaz and H. Danielsson and {de Simone}, N. and {Di Filippo}, D. and {Di Lella}, L. and N. Doble and H. Heath and R. Page and S. Trilov",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).; 40th International Conference on High Energy Physics, ICHEP 2020 ; Conference date: 28-07-2020 Through 06-08-2020",

year = "2021",

month = apr,

day = "15",

language = "English",

volume = "390",

series = "Proceedings of Science",

publisher = "SISSA",

booktitle = "Proceedings of Science",

}

TY - GEN

T1 - New measurement of the K+ ? p+µ+µ-decay at NA62

AU - The NA62 Collaboration

AU - Bician, Lubos

AU - Aliberti, R.

AU - Ambrosino, F.

AU - Ammendola, R.

AU - Angelucci, B.

AU - Antonelli, A.

AU - Anzivino, G.

AU - Arcidiacono, R.

AU - Bache, T.

AU - Baeva, A.

AU - Baigarashev, D.

AU - Barbanera, M.

AU - Bernhard, J.

AU - Biagioni, A.

AU - Biino, C.

AU - Bizzeti, A.

AU - Blazek, T.

AU - Bloch-Devaux, B.

AU - Bonaiuto, V.

AU - Boretto, M.

AU - Bragadireanu, M.

AU - Britton, D.

AU - Brizioli, F.

AU - Brunetti, M. B.

AU - Bryman, D.

AU - Bucci, F.

AU - Capussela, T.

AU - Carmignani, J.

AU - Ceccucci, A.

AU - Cenci, P.

AU - Cerny, V.

AU - Cerri, C.

AU - Checcucci, B.

AU - Conovaloff, A.

AU - Gil, E. Cortina

AU - Corvino, M.

AU - Costantini, F.

AU - Ramusino, A. Cotta

AU - Coward, D.

AU - D'Agostini, G.

AU - Dainton, J.

AU - Dalpiaz, P.

AU - Danielsson, H.

AU - de Simone, N.

AU - Di Filippo, D.

AU - Di Lella, L.

AU - Doble, N.

AU - Heath, H.

AU - Page, R.

AU - Trilov, S.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

PY - 2021/4/15

Y1 - 2021/4/15

N2 - A preliminary result of a new measurement of the K+ ?p+µ+µ- form factor parameters and branching fraction using the NA62 Run 1 data set collected in the years 2016 - 2018 is presented. From the observed sample of 28011 K+ ? p+µ+µ- event candidates with negligible background contamination, the form factor parameters a+ = -0.592 ± 0.013stat ± 0.007syst ± 0.001ext and b+ = -0.699 ± 0.046stat ± 0.035syst ± 0.003ext, and the branching fraction B(K+ ? p+µ+µ-) = (9.27 ± 0.07stat ± 0.08syst ± 0.04ext) × 10-8 are obtained.

AB - A preliminary result of a new measurement of the K+ ?p+µ+µ- form factor parameters and branching fraction using the NA62 Run 1 data set collected in the years 2016 - 2018 is presented. From the observed sample of 28011 K+ ? p+µ+µ- event candidates with negligible background contamination, the form factor parameters a+ = -0.592 ± 0.013stat ± 0.007syst ± 0.001ext and b+ = -0.699 ± 0.046stat ± 0.035syst ± 0.003ext, and the branching fraction B(K+ ? p+µ+µ-) = (9.27 ± 0.07stat ± 0.08syst ± 0.04ext) × 10-8 are obtained.

UR - http://www.scopus.com/inward/record.url?scp=85105538973&partnerID=8YFLogxK

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:85105538973

VL - 390

T3 - Proceedings of Science

BT - Proceedings of Science

T2 - 40th International Conference on High Energy Physics, ICHEP 2020

Y2 - 28 July 2020 through 6 August 2020

ER -