Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays
Abstract Using a data sample of $$\sqrt{s}=13\,\text {TeV}$$ s =...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2022
|
| Online Access: | https://hdl.handle.net/1721.1/142879 |
| _version_ | 1826206025254961152 |
|---|---|
| author | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Schwarz, D. Templ, S. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Schwarz, D. Templ, S. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | Abstract
Using a data sample of
$$\sqrt{s}=13\,\text {TeV}$$
s
=
13
TeV
proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of
$$103\text {~fb}^{-1}$$
103
fb
-
1
, the
$$\text {B}^{0}_{\mathrm{s}} \rightarrow \uppsi (\text {2S})\text {K}_\mathrm{S}^{0}$$
B
s
0
→
ψ
(
2S
)
K
S
0
and
$$\text {B}^{0} \rightarrow \uppsi (\text {2S})\text {K}_\mathrm{S}^{0} \uppi ^+\uppi ^-$$
B
0
→
ψ
(
2S
)
K
S
0
π
+
π
-
decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to
$${\mathcal {B}}(\text {B}^{0}_{\mathrm{s}} \rightarrow \uppsi (\text {2S})K_\mathrm{S}^{0})/{\mathcal {B}}(\text {B}^{0}\rightarrow \uppsi (\text {2S})K_\mathrm{S}^{0}) = (3.33 \pm 0.69 (\text {stat})\, \pm 0.11\,(\text {syst}) \pm 0.34\,(f_{\mathrm{s}}/f_{\mathrm{d}})) \times 10^{-2}$$
B
(
B
s
0
→
ψ
(
2S
)
K
S
0
)
/
B
(
B
0
→
ψ
(
2S
)
K
S
0
)
=
(
3.33
±
0.69
(
stat
)
±
0.11
(
syst
)
±
0.34
(
f
s
/
f
d
)
)
×
10
-
2
and
$${\mathcal {B}}(\text {B}^{0} \rightarrow \uppsi (\text {2S})\text {K}_\mathrm{S}^{0} \uppi ^{+} \uppi ^{-})/ {\mathcal {B}}(\text {B}^{0} \rightarrow \uppsi (\text {2S})\text {K}^{0}_{\mathrm{S}}) = 0.480 \pm 0.013\,(\text {stat}) \pm 0.032\,(\text {syst})$$
B
(
B
0
→
ψ
(
2S
)
K
S
0
π
+
π
-
)
/
B
(
B
0
→
ψ
(
2S
)
K
S
0
)
=
0.480
±
0.013
(
stat
)
±
0.032
(
syst
)
, where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of
$$\hbox {B}^{0}_{\mathrm{s}}$$
B
s
0
and
$$\hbox {B}^{0}$$
B
0
mesons,
$$f_{\mathrm{s}}/f_{\mathrm{d}}$$
f
s
/
f
d
. |
| first_indexed | 2024-09-23T13:22:48Z |
| format | Article |
| id | mit-1721.1/142879 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:22:48Z |
| publishDate | 2022 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1428792023-12-08T18:06:21Z Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Schwarz, D. Templ, S. Massachusetts Institute of Technology. Department of Physics Abstract Using a data sample of $$\sqrt{s}=13\,\text {TeV}$$ s = 13 TeV proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of $$103\text {~fb}^{-1}$$ 103 fb - 1 , the $$\text {B}^{0}_{\mathrm{s}} \rightarrow \uppsi (\text {2S})\text {K}_\mathrm{S}^{0}$$ B s 0 → ψ ( 2S ) K S 0 and $$\text {B}^{0} \rightarrow \uppsi (\text {2S})\text {K}_\mathrm{S}^{0} \uppi ^+\uppi ^-$$ B 0 → ψ ( 2S ) K S 0 π + π - decays are observed with significances exceeding 5 standard deviations. The resulting branching fraction ratios, measured for the first time, correspond to $${\mathcal {B}}(\text {B}^{0}_{\mathrm{s}} \rightarrow \uppsi (\text {2S})K_\mathrm{S}^{0})/{\mathcal {B}}(\text {B}^{0}\rightarrow \uppsi (\text {2S})K_\mathrm{S}^{0}) = (3.33 \pm 0.69 (\text {stat})\, \pm 0.11\,(\text {syst}) \pm 0.34\,(f_{\mathrm{s}}/f_{\mathrm{d}})) \times 10^{-2}$$ B ( B s 0 → ψ ( 2S ) K S 0 ) / B ( B 0 → ψ ( 2S ) K S 0 ) = ( 3.33 ± 0.69 ( stat ) ± 0.11 ( syst ) ± 0.34 ( f s / f d ) ) × 10 - 2 and $${\mathcal {B}}(\text {B}^{0} \rightarrow \uppsi (\text {2S})\text {K}_\mathrm{S}^{0} \uppi ^{+} \uppi ^{-})/ {\mathcal {B}}(\text {B}^{0} \rightarrow \uppsi (\text {2S})\text {K}^{0}_{\mathrm{S}}) = 0.480 \pm 0.013\,(\text {stat}) \pm 0.032\,(\text {syst})$$ B ( B 0 → ψ ( 2S ) K S 0 π + π - ) / B ( B 0 → ψ ( 2S ) K S 0 ) = 0.480 ± 0.013 ( stat ) ± 0.032 ( syst ) , where the last uncertainty in the first ratio is related to the uncertainty in the ratio of production cross sections of $$\hbox {B}^{0}_{\mathrm{s}}$$ B s 0 and $$\hbox {B}^{0}$$ B 0 mesons, $$f_{\mathrm{s}}/f_{\mathrm{d}}$$ f s / f d . 2022-06-06T13:37:32Z 2022-06-06T13:37:32Z 2022-05-31 2022-06-05T03:10:55Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142879 The European Physical Journal C. 2022 May 31;82(5):499 PUBLISHER_CC en https://doi.org/10.1140/epjc/s10052-022-10315-y Creative Commons Attribution https://creativecommons.org/licenses/by/4.0 The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Schwarz, D. Templ, S. Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays |
| title | Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays |
| title_full | Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays |
| title_fullStr | Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays |
| title_full_unstemmed | Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays |
| title_short | Observation of B $$^0$$ 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}\uppi ^+\uppi ^-$$ S 0 π + π - and B $$^0_\mathrm {s}$$ s 0 $$\rightarrow $$ → $$\uppsi $$ ψ (2S)K $$^0_\mathrm {S}$$ S 0 decays |
| title_sort | observation of b 0 0 rightarrow uppsi ψ 2s k 0 mathrm s uppi uppi s 0 π π and b 0 mathrm s s 0 rightarrow uppsi ψ 2s k 0 mathrm s s 0 decays |
| url | https://hdl.handle.net/1721.1/142879 |
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