Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode
Abstract Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of $$5.7~\text {fb}^{-1}$$...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2023
|
| Online Access: | https://hdl.handle.net/1721.1/151165 |
| _version_ | 1811082593136803840 |
|---|---|
| author | Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Akiba, K. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A. Aliouche, Z. Cartelle, P. A. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Akiba, K. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A. Aliouche, Z. Cartelle, P. A. |
| author_sort | Aaij, R. |
| collection | MIT |
| description | Abstract
Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of
$$5.7~\text {fb}^{-1}$$
5.7
fb
-
1
, the lifetime of the light
$${{B} ^0_{s}} $$
B
s
0
mass eigenstate,
$$\tau _{L}$$
τ
L
, is measured using the
$$B^0_s \rightarrow J/\psi \eta $$
B
s
0
→
J
/
ψ
η
decay mode to be
$$\begin{aligned} \tau _{\text {L}} = 1.445 \pm 0.016 \text {(stat)} \pm 0.008 \text {(syst)} \,\text {ps}. \end{aligned}$$
τ
L
=
1.445
±
0.016
(stat)
±
0.008
(syst)
ps
.
A combination of this result with a previous LHCb analysis using an independent dataset corresponding to 3 fb
$$^{-1}$$
-
1
of integrated luminosity gives
$$\begin{aligned} \tau _{\text {L}} = 1.452 \pm 0.014 \pm 0.007 \pm 0.002 \,\text {ps}, \end{aligned}$$
τ
L
=
1.452
±
0.014
±
0.007
±
0.002
ps
,
where the first uncertainty is statistical, the second due to the uncorrelated part of the systematic uncertainty and the third due to the correlated part of the systematic uncertainty. |
| first_indexed | 2024-09-23T12:05:52Z |
| format | Article |
| id | mit-1721.1/151165 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:05:52Z |
| publishDate | 2023 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1511652024-01-12T18:25:27Z Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Akiba, K. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A. Aliouche, Z. Cartelle, P. A. Massachusetts Institute of Technology. Department of Physics Abstract Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of $$5.7~\text {fb}^{-1}$$ 5.7 fb - 1 , the lifetime of the light $${{B} ^0_{s}} $$ B s 0 mass eigenstate, $$\tau _{L}$$ τ L , is measured using the $$B^0_s \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode to be $$\begin{aligned} \tau _{\text {L}} = 1.445 \pm 0.016 \text {(stat)} \pm 0.008 \text {(syst)} \,\text {ps}. \end{aligned}$$ τ L = 1.445 ± 0.016 (stat) ± 0.008 (syst) ps . A combination of this result with a previous LHCb analysis using an independent dataset corresponding to 3 fb $$^{-1}$$ - 1 of integrated luminosity gives $$\begin{aligned} \tau _{\text {L}} = 1.452 \pm 0.014 \pm 0.007 \pm 0.002 \,\text {ps}, \end{aligned}$$ τ L = 1.452 ± 0.014 ± 0.007 ± 0.002 ps , where the first uncertainty is statistical, the second due to the uncorrelated part of the systematic uncertainty and the third due to the correlated part of the systematic uncertainty. 2023-07-25T19:09:09Z 2023-07-25T19:09:09Z 2023-07-17 2023-07-23T03:11:05Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/151165 The European Physical Journal C. 2023 Jul 17;83(7):629 PUBLISHER_CC en https://doi.org/10.1140/epjc/s10052-023-11634-4 Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Aiola, S. Ajaltouni, Z. Akar, S. Akiba, K. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A. Aliouche, Z. Cartelle, P. A. Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode |
| title | Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode |
| title_full | Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode |
| title_fullStr | Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode |
| title_full_unstemmed | Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode |
| title_short | Measurement of $$\tau _\text {L}$$ τ L using the $${B} _s^0 \rightarrow J/\psi \eta $$ B s 0 → J / ψ η decay mode |
| title_sort | measurement of tau text l τ l using the b s 0 rightarrow j psi eta b s 0 j ψ η decay mode |
| url | https://hdl.handle.net/1721.1/151165 |
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