Flavor tagged time-dependent angular analysis of the Bs0 →J/ψφ decay and extraction of ΔΓs and the weak phase φs in ATLAS
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Aad, G; Abajyan, T; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdinov, O; Aben, R; Abi, B; Abolins, M; Abouzeid, OS; Abramowicz, H; Abreu, H ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
September 23, 2014
A measurement of the Bs0→J/ψφ decay parameters, updated to include flavor tagging is reported using 4.9fb-1 of integrated luminosity collected by the ATLAS detector from s=7TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters are φs=0.12±0.25(stat)±0.05(syst)radΔΓs=0.053±0.021(stat)±0.010(syst)ps-1Γs=0.677±0.007(stat)±0.004(syst)ps-1|A (0)|2=0.220±0.008(stat)±0.009(syst)|A0(0)|2=0.529±0.006(stat)±0.012(syst)δ=3.89±0.47(stat)±0.11(syst)radwhere the parameter ΔΓs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for φs and ΔΓs are also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.
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Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
September 23, 2014
Volume
90
Issue
5
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5101 Astronomical sciences
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
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Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., … Armbruster, A. J. (2014). Flavor tagged time-dependent angular analysis of the Bs0 →J/ψφ decay and extraction of ΔΓs and the weak phase φs in ATLAS. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(5). https://doi.org/10.1103/PhysRevD.90.052007
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, et al. “Flavor tagged time-dependent angular analysis of the Bs0 →J/ψφ decay and extraction of ΔΓs and the weak phase φs in ATLAS.” Physical Review D - Particles, Fields, Gravitation and Cosmology 90, no. 5 (September 23, 2014). https://doi.org/10.1103/PhysRevD.90.052007.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdinov O, et al. Flavor tagged time-dependent angular analysis of the Bs0 →J/ψφ decay and extraction of ΔΓs and the weak phase φs in ATLAS. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 Sep 23;90(5).
Aad, G., et al. “Flavor tagged time-dependent angular analysis of the Bs0 →J/ψφ decay and extraction of ΔΓs and the weak phase φs in ATLAS.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 90, no. 5, Sept. 2014. Scopus, doi:10.1103/PhysRevD.90.052007.
Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdinov O, Aben R, Abi B, Abolins M, Abouzeid OS, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Adamczyk L, Adams DL, Addy TN, Adelman J, Adomeit S, Adye T, Agatonovic-Jovin T, Aguilar-Saavedra JA, Agustoni M, Ahlen SP, Ahmad A, Ahmadov F, Aielli G, Åkesson TPA, Akimoto G, Akimov AV, Albert J, Albrand S, Alconada Verzini MJ, Aleksa M, Aleksandrov IN, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Alimonti G, Alio L, Alison J, Allbrooke BMM, Allison LJ, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alonso F, Alpigiani C, Altheimer A, Alvarez Gonzalez B, Alviggi MG, Amako K, Amaral Coutinho Y, Amelung C, Amidei D, Ammosov VV, Amor Dos Santos SP, Amorim A, Amoroso S, Amram N, Amundsen G, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Anduaga XS, Angelidakis S, Anger P, Angerami A, Anghinolfi F, Anisenkov AV, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoki M, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Araque JP, Arce ATH, Arguin JF, Argyropoulos S, Arik M, Armbruster AJ. Flavor tagged time-dependent angular analysis of the Bs0 →J/ψφ decay and extraction of ΔΓs and the weak phase φs in ATLAS. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 Sep 23;90(5).
Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
September 23, 2014
Volume
90
Issue
5
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5101 Astronomical sciences
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences