Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays
Abstract The branching fraction and direct $$C\!P$$ C P...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
|
| Online Access: | https://hdl.handle.net/1721.1/131629 |
| _version_ | 1811078779841282048 |
|---|---|
| author | Aaij, R. Beteta, C. A Adeva, B. Adinolfi, M. Aidala, C. A Ajaltouni, Z. Akar, S. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A Alkhazov, G. Alvarez Cartelle, P. Alves, A. A Amato, S. Amerio, S. Amhis, Y. An, L. Anderlini, L. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Aaij, R. Beteta, C. A Adeva, B. Adinolfi, M. Aidala, C. A Ajaltouni, Z. Akar, S. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A Alkhazov, G. Alvarez Cartelle, P. Alves, A. A Amato, S. Amerio, S. Amhis, Y. An, L. Anderlini, L. |
| author_sort | Aaij, R. |
| collection | MIT |
| description | Abstract
The branching fraction and direct
$$C\!P$$
C
P
asymmetry of the decay
$${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$
B
+
→
J
/
ψ
ρ
+
are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to a total integrated luminosity of 3
$$\,\text{ fb }^{-1}$$
fb
-
1
. The following results are obtained:
$$\begin{aligned} \mathcal {B}({{B} ^+} \!\rightarrow {{J /\psi }} {{\rho } ^+} )&= (3.81^{+0.25}_{-0.24} \pm 0.35) \times 10^{-5},\\ \mathcal {A}^{{C\!P}} ({{B} ^+} \!\rightarrow {{J /\psi }} {{\rho } ^+} )&= -0.045^{+0.056}_{-0.057} \pm 0.008, \end{aligned}$$
B
(
B
+
→
J
/
ψ
ρ
+
)
=
(
3
.
81
-
0.24
+
0.25
±
0.35
)
×
10
-
5
,
A
C
P
(
B
+
→
J
/
ψ
ρ
+
)
=
-
0
.
045
-
0.057
+
0.056
±
0.008
,
where the first uncertainties are statistical and the second systematic. Both measurements are the most precise to date. |
| first_indexed | 2024-09-23T11:05:22Z |
| format | Article |
| id | mit-1721.1/131629 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:05:22Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1316292023-12-12T19:44:10Z Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays Aaij, R. Beteta, C. A Adeva, B. Adinolfi, M. Aidala, C. A Ajaltouni, Z. Akar, S. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A Alkhazov, G. Alvarez Cartelle, P. Alves, A. A Amato, S. Amerio, S. Amhis, Y. An, L. Anderlini, L. Massachusetts Institute of Technology. Department of Physics Abstract The branching fraction and direct $$C\!P$$ C P asymmetry of the decay $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to a total integrated luminosity of 3 $$\,\text{ fb }^{-1}$$ fb - 1 . The following results are obtained: $$\begin{aligned} \mathcal {B}({{B} ^+} \!\rightarrow {{J /\psi }} {{\rho } ^+} )&= (3.81^{+0.25}_{-0.24} \pm 0.35) \times 10^{-5},\\ \mathcal {A}^{{C\!P}} ({{B} ^+} \!\rightarrow {{J /\psi }} {{\rho } ^+} )&= -0.045^{+0.056}_{-0.057} \pm 0.008, \end{aligned}$$ B ( B + → J / ψ ρ + ) = ( 3 . 81 - 0.24 + 0.25 ± 0.35 ) × 10 - 5 , A C P ( B + → J / ψ ρ + ) = - 0 . 045 - 0.057 + 0.056 ± 0.008 , where the first uncertainties are statistical and the second systematic. Both measurements are the most precise to date. 2021-09-20T17:29:08Z 2021-09-20T17:29:08Z 2019-06-24 2020-06-26T12:40:03Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131629 The European Physical Journal C. 2019 Jun 24;79(6):537 PUBLISHER_CC en https://doi.org/10.1140/epjc/s10052-019-6698-3 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ CERN for the benefit of the LHCb collaboration application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Aaij, R. Beteta, C. A Adeva, B. Adinolfi, M. Aidala, C. A Ajaltouni, Z. Akar, S. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Albero, A. A Alkhazov, G. Alvarez Cartelle, P. Alves, A. A Amato, S. Amerio, S. Amhis, Y. An, L. Anderlini, L. Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays |
| title | Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays |
| title_full | Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays |
| title_fullStr | Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays |
| title_full_unstemmed | Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays |
| title_short | Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays |
| title_sort | measurement of the branching fraction and c p c p asymmetry in b rightarrow j psi rho b j ψ ρ decays |
| url | https://hdl.handle.net/1721.1/131629 |
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