Measurement of the absolute branching fractions for purely leptonic D_s^+ decays
- Publication type:
- Journal article
- Metadata:
-
- Abstract
- We report new measurements of the branching fraction $\cal B(D_s^+\to \ell^+\nu)$, where $\ell^+$ is either $\mu^+$ or $\tau^+(\to\pi^+\bar{\nu}_\tau)$, based on $6.32$ fb$^{-1}$ of electron-positron annihilation data collected by the BESIII experiment at six center-of-mass energy points between $4.178$ and $4.226$ GeV. Simultaneously floating the $D_s^+\to\mu^+\nu_\mu$ and $D_s^+\to\tau^+\nu_\tau$ components yields $\cal B(D_s^+\to \tau^+\nu_\tau) = (5.21\pm0.25\pm0.17)\times10^{-2}$, $\cal B(D_s^+\to \mu^+\nu_\mu) = (5.35\pm0.13\pm0.16)\times10^{-3}$, and the ratio of decay widths $R=\frac{\Gamma(D_s^+\to \tau^+\nu_\tau)}{\Gamma(D_s^+\to \mu^+\nu_\mu)} = 9.73^{+0.61}_{-0.58}\pm 0.36$, where the first uncertainties are statistical and the second systematic. No evidence of ${\it CP}$ asymmetry is observed in the decay rates $D_s^\pm\to\mu^\pm\nu_\mu$ and $D_s^\pm\to\tau^\pm\nu_\tau$: $A_{\it CP}(\mu^\pm\nu) = (-1.2\pm2.5\pm1.0)\%$ and $A_{\it CP}(\tau^\pm\nu) = (+2.9\pm4.8\pm1.0)\%$. Constraining our measurement to the Standard Model expectation of lepton universality ($R=9.75$), we find the more precise results $\cal B(D_s^+\to \tau^+\nu_\tau) = (5.22\pm0.10\pm 0.14)\times10^{-2}$ and $A_{\it CP}(\tau^\pm\nu_\tau) = (-0.1\pm1.9\pm1.0)\%$. Combining our results with inputs external to our analysis, we determine the $c\to \bar{s}$ quark mixing matrix element, $D_s^+$ decay constant, and ratio of the decay constants to be $|V_{cs}| = 0.973\pm0.009\pm0.014$, $f_{D^+_s} = 249.9\pm2.4\pm3.5~\text{MeV}$, and $f_{D^+_s}/f_{D^+} = 1.232\pm0.035$, respectively.
- Autoren
- BESIII Collaboration
- M Ablikim
- MN Achasov
- P Adlarson
- S Ahmed
- M Albrecht
- R Aliberti
- A Amoroso
- MR An
- Q An
- XH Bai
- Y Bai
- O Bakina
- R Baldini Ferroli
- I Balossino
- Y Ban
- K Begzsuren
- N Berger
- M Bertani
- D Bettoni
- F Bianchi
- J Bloms
- A Bortone
- I Boyko
- RA Briere
- H Cai
- X Cai
- A Calcaterra
- GF Cao
- N Cao
- SA Cetin
- JF Chang
- WL Chang
- G Chelkov
- DY Chen
- G Chen
- HS Chen
- ML Chen
- SJ Chen
- XR Chen
- YB Chen
- ZJ Chen
- WS Cheng
- G Cibinetto
- F Cossio
- XF Cui
- HL Dai
- XC Dai
- A Dbeyssi
- RE de Boer
- D Dedovich
- ZY Deng
- A Denig
- I Denysenko
- M Destefanis
- F De Mori
- Y Ding
- C Dong
- J Dong
- LY Dong
- MY Dong
- X Dong
- SX Du
- YL Fan
- J Fang
- SS Fang
- Y Fang
- R Farinelli
- L Fava
- F Feldbauer
- G Felici
- CQ Feng
- JH Feng
- M Fritsch
- CD Fu
- Y Gao
- Y Gao
- Y Gao
- YG Gao
- I Garzia
- PT Ge
- C Geng
- EM Gersabeck
- A Gilman
- K Goetzen
- L Gong
- WX Gong
- W Gradl
- M Greco
- LM Gu
- MH Gu
- S Gu
- YT Gu
- CY Guan
- AQ Guo
- LB Guo
- RP Guo
- YP Guo
- A Guskov
- TT Han
- WY Han
- XQ Hao
- FA Harris
- KL He
- FH Heinsius
- CH Heinz
- T Held
- YK Heng
- C Herold
- M Himmelreich
- T Holtmann
- GY Hou
- YR Hou
- ZL Hou
- HM Hu
- JF Hu
- T Hu
- Y Hu
- GS Huang
- LQ Huang
- XT Huang
- YP Huang
- Z Huang
- T Hussain
- N Hüsken
- W Ikegami Andersson
- W Imoehl
- M Irshad
- S Jaeger
- S Janchiv
- Q Ji
- QP Ji
- XB Ji
- XL Ji
- YY Ji
- HB Jiang
- XS Jiang
- JB Jiao
- Z Jiao
- S Jin
- Y Jin
- MQ Jing
- T Johansson
- N Kalantar-Nayestanaki
- XS Kang
- R Kappert
- M Kavatsyuk
- BC Ke
- IK Keshk
- A Khoukaz
- P Kiese
- R Kiuchi
- R Kliemt
- L Koch
- OB Kolcu
- B Kopf
- M Kuemmel
- M Kuessner
- A Kupsc
- MG Kurth
- W Kühn
- JJ Lane
- JS Lange
- P Larin
- A Lavania
- L Lavezzi
- ZH Lei
- H Leithoff
- M Lellmann
- T Lenz
- C Li
- CH Li
- Cheng Li
- DM Li
- F Li
- G Li
- H Li
- H Li
- HB Li
- HJ Li
- JL Li
- JQ Li
- JS Li
- Ke Li
- LK Li
- Lei Li
- PR Li
- SY Li
- WD Li
- WG Li
- XH Li
- XL Li
- Xiaoyu Li
- ZY Li
- H Liang
- H Liang
- H Liang
- YF Liang
- YT Liang
- GR Liao
- LZ Liao
- J Libby
- CX Lin
- BJ Liu
- CX Liu
- D Liu
- FH Liu
- Fang Liu
- Feng Liu
- HB Liu
- HM Liu
- Huanhuan Liu
- Huihui Liu
- JB Liu
- JL Liu
- JY Liu
- K Liu
- KY Liu
- L Liu
- MH Liu
- PL Liu
- Q Liu
- Q Liu
- SB Liu
- Shuai Liu
- T Liu
- WM Liu
- X Liu
- Y Liu
- YB Liu
- ZA Liu
- ZQ Liu
- XC Lou
- FX Lu
- FX Lu
- HJ Lu
- JD Lu
- JG Lu
- XL Lu
- Y Lu
- YP Lu
- CL Luo
- MX Luo
- PW Luo
- T Luo
- XL Luo
- S Lusso
- XR Lyu
- FC Ma
- HL Ma
- LL Ma
- MM Ma
- QM Ma
- RQ Ma
- RT Ma
- XX Ma
- XY Ma
- FE Maas
- M Maggiora
- S Maldaner
- S Malde
- A Mangoni
- YJ Mao
- ZP Mao
- S Marcello
- ZX Meng
- JG Messchendorp
- G Mezzadri
- TJ Min
- RE Mitchell
- XH Mo
- YJ Mo
- N Yu Muchnoi
- H Muramatsu
- S Nakhoul
- Y Nefedov
- F Nerling
- IB Nikolaev
- Z Ning
- S Nisar
- SL Olsen
- Q Ouyang
- S Pacetti
- X Pan
- Y Pan
- A Pathak
- P Patteri
- M Pelizaeus
- HP Peng
- K Peters
- J Pettersson
- JL Ping
- RG Ping
- R Poling
- V Prasad
- H Qi
- HR Qi
- KH Qi
- M Qi
- TY Qi
- TY Qi
- S Qian
- WB Qian
- Z Qian
- CF Qiao
- LQ Qin
- XP Qin
- XS Qin
- ZH Qin
- JF Qiu
- SQ Qu
- KH Rashid
- K Ravindran
- CF Redmer
- A Rivetti
- V Rodin
- M Rolo
- G Rong
- Ch Rosner
- M Rump
- HS Sang
- A Sarantsev
- Y Schelhaas
- C Schnier
- K Schoenning
- M Scodeggio
- DC Shan
- W Shan
- XY Shan
- JF Shangguan
- M Shao
- CP Shen
- HF Shen
- PX Shen
- XY Shen
- HC Shi
- RS Shi
- X Shi
- XD Shi
- JJ Song
- WM Song
- YX Song
- S Sosio
- S Spataro
- KX Su
- PP Su
- FF Sui
- GX Sun
- HK Sun
- JF Sun
- L Sun
- SS Sun
- T Sun
- WY Sun
- WY Sun
- X Sun
- YJ Sun
- YK Sun
- YZ Sun
- ZT Sun
- YH Tan
- YX Tan
- CJ Tang
- GY Tang
- J Tang
- JX Teng
- V Thoren
- WH Tian
- YT Tian
- I Uman
- B Wang
- CW Wang
- DY Wang
- HJ Wang
- HP Wang
- K Wang
- LL Wang
- M Wang
- MZ Wang
- Meng Wang
- W Wang
- WH Wang
- WP Wang
- X Wang
- XF Wang
- XL Wang
- Y Wang
- Y Wang
- YD Wang
- YF Wang
- YQ Wang
- YY Wang
- Z Wang
- ZY Wang
- Ziyi Wang
- Zongyuan Wang
- DH Wei
- P Weidenkaff
- F Weidner
- SP Wen
- DJ White
- U Wiedner
- G Wilkinson
- M Wolke
- L Wollenberg
- JF Wu
- LH Wu
- LJ Wu
- X Wu
- Z Wu
- L Xia
- H Xiao
- SY Xiao
- ZJ Xiao
- XH Xie
- YG Xie
- YH Xie
- TY Xing
- GF Xu
- QJ Xu
- W Xu
- XP Xu
- YC Xu
- F Yan
- L Yan
- WB Yan
- WC Yan
- Xu Yan
- HJ Yang
- HX Yang
- L Yang
- SL Yang
- YX Yang
- Yifan Yang
- Zhi Yang
- M Ye
- MH Ye
- JH Yin
- ZY You
- BX Yu
- CX Yu
- G Yu
- JS Yu
- T Yu
- CZ Yuan
- L Yuan
- XQ Yuan
- Y Yuan
- ZY Yuan
- CX Yue
- A Yuncu
- AA Zafar
- Y Zeng
- AQ Zhang
- BX Zhang
- Guangyi Zhang
- H Zhang
- HH Zhang
- HH Zhang
- HY Zhang
- JJ Zhang
- JL Zhang
- JQ Zhang
- JW Zhang
- JY Zhang
- JZ Zhang
- Jianyu Zhang
- Jiawei Zhang
- LM Zhang
- LQ Zhang
- Lei Zhang
- S Zhang
- SF Zhang
- Shulei Zhang
- XD Zhang
- XY Zhang
- Y Zhang
- YH Zhang
- YT Zhang
- Yan Zhang
- Yao Zhang
- Yi Zhang
- ZH Zhang
- ZY Zhang
- G Zhao
- J Zhao
- JY Zhao
- JZ Zhao
- Lei Zhao
- Ling Zhao
- MG Zhao
- Q Zhao
- SJ Zhao
- YB Zhao
- YX Zhao
- ZG Zhao
- A Zhemchugov
- B Zheng
- JP Zheng
- Y Zheng
- YH Zheng
- B Zhong
- C Zhong
- LP Zhou
- Q Zhou
- X Zhou
- XK Zhou
- XR Zhou
- XY Zhou
- AN Zhu
- J Zhu
- K Zhu
- KJ Zhu
- SH Zhu
- TJ Zhu
- WJ Zhu
- WJ Zhu
- YC Zhu
- ZA Zhu
- BS Zou
- JH Zou
- Autoren-URL
- http://arxiv.org/abs/2102.11734v2
- Zeitschrift
- Phys. Rev. D
- Schlüsselwörter
- hep-ex
- hep-ex
- Notes
- Minor revisions, version accepted by PRD
- Paginierung
- 052009
- Datum der Veröffentlichung
- 2021
- Herausgeber URL
- http://dx.doi.org/10.1103/PhysRevD.104.052009
- Datum der Datenerfassung
- 2021
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2021
- Titel
- Measurement of the absolute branching fractions for purely leptonic $D_s^+$ decays
- Ausgabe der Zeitschrift
- 104
Files
2102.11734v2.pdf
Data source: arXiv
- Other metadata sources:
-
- Abstract
- We report new measurements of the branching fraction $\cal B(D_s^+\to \ell^+\nu)$, where $\ell^+$ is either $\mu^+$ or $\tau^+(\to\pi^+\bar{\nu}_\tau)$, based on $6.32$ fb$^{-1}$ of electron-positron annihilation data collected by the BESIII experiment at six center-of-mass energy points between $4.178$ and $4.226$ GeV. Simultaneously floating the $D_s^+\to\mu^+\nu_\mu$ and $D_s^+\to\tau^+\nu_\tau$ components yields $\cal B(D_s^+\to \tau^+\nu_\tau) = (5.21\pm0.25\pm0.17)\times10^{-2}$, $\cal B(D_s^+\to \mu^+\nu_\mu) = (5.35\pm0.13\pm0.16)\times10^{-3}$, and the ratio of decay widths $R=\frac{\Gamma(D_s^+\to \tau^+\nu_\tau)}{\Gamma(D_s^+\to \mu^+\nu_\mu)} = 9.73^{+0.61}_{-0.58}\pm 0.36$, where the first uncertainties are statistical and the second systematic. No evidence of ${\it CP}$ asymmetry is observed in the decay rates $D_s^\pm\to\mu^\pm\nu_\mu$ and $D_s^\pm\to\tau^\pm\nu_\tau$: $A_{\it CP}(\mu^\pm\nu) = (-1.2\pm2.5\pm1.0)\%$ and $A_{\it CP}(\tau^\pm\nu) = (+2.9\pm4.8\pm1.0)\%$. Constraining our measurement to the Standard Model expectation of lepton universality ($R=9.75$), we find the more precise results $\cal B(D_s^+\to \tau^+\nu_\tau) = (5.22\pm0.10\pm 0.14)\times10^{-2}$ and $A_{\it CP}(\tau^\pm\nu_\tau) = (-0.1\pm1.9\pm1.0)\%$. Combining our results with inputs external to our analysis, we determine the $c\to \bar{s}$ quark mixing matrix element, $D_s^+$ decay constant, and ratio of the decay constants to be $|V_{cs}| = 0.973\pm0.009\pm0.014$, $f_{D^+_s} = 249.9\pm2.4\pm3.5~\text{MeV}$, and $f_{D^+_s}/f_{D^+} = 1.232\pm0.035$, respectively.
- Autoren
- BESIII Collaboration
- M Ablikim
- MN Achasov
- P Adlarson
- S Ahmed
- M Albrecht
- R Aliberti
- A Amoroso
- MR An
- Q An
- XH Bai
- Y Bai
- O Bakina
- R Baldini Ferroli
- I Balossino
- Y Ban
- K Begzsuren
- N Berger
- M Bertani
- D Bettoni
- F Bianchi
- J Bloms
- A Bortone
- I Boyko
- RA Briere
- H Cai
- X Cai
- A Calcaterra
- GF Cao
- N Cao
- SA Cetin
- JF Chang
- WL Chang
- G Chelkov
- DY Chen
- G Chen
- HS Chen
- ML Chen
- SJ Chen
- XR Chen
- YB Chen
- ZJ Chen
- WS Cheng
- G Cibinetto
- F Cossio
- XF Cui
- HL Dai
- XC Dai
- A Dbeyssi
- RE de Boer
- D Dedovich
- ZY Deng
- A Denig
- I Denysenko
- M Destefanis
- F De Mori
- Y Ding
- C Dong
- J Dong
- LY Dong
- MY Dong
- X Dong
- SX Du
- YL Fan
- J Fang
- SS Fang
- Y Fang
- R Farinelli
- L Fava
- F Feldbauer
- G Felici
- CQ Feng
- JH Feng
- M Fritsch
- CD Fu
- Y Gao
- Y Gao
- Y Gao
- YG Gao
- I Garzia
- PT Ge
- C Geng
- EM Gersabeck
- A Gilman
- K Goetzen
- L Gong
- WX Gong
- W Gradl
- M Greco
- LM Gu
- MH Gu
- S Gu
- YT Gu
- CY Guan
- AQ Guo
- LB Guo
- RP Guo
- YP Guo
- A Guskov
- TT Han
- WY Han
- XQ Hao
- FA Harris
- KL He
- FH Heinsius
- CH Heinz
- T Held
- YK Heng
- C Herold
- M Himmelreich
- T Holtmann
- GY Hou
- YR Hou
- ZL Hou
- HM Hu
- JF Hu
- T Hu
- Y Hu
- GS Huang
- LQ Huang
- XT Huang
- YP Huang
- Z Huang
- T Hussain
- N Hüsken
- W Ikegami Andersson
- W Imoehl
- M Irshad
- S Jaeger
- S Janchiv
- Q Ji
- QP Ji
- XB Ji
- XL Ji
- YY Ji
- HB Jiang
- XS Jiang
- JB Jiao
- Z Jiao
- S Jin
- Y Jin
- MQ Jing
- T Johansson
- N Kalantar-Nayestanaki
- XS Kang
- R Kappert
- M Kavatsyuk
- BC Ke
- IK Keshk
- A Khoukaz
- P Kiese
- R Kiuchi
- R Kliemt
- L Koch
- OB Kolcu
- B Kopf
- M Kuemmel
- M Kuessner
- A Kupsc
- MG Kurth
- W Kühn
- JJ Lane
- JS Lange
- P Larin
- A Lavania
- L Lavezzi
- ZH Lei
- H Leithoff
- M Lellmann
- T Lenz
- C Li
- CH Li
- Cheng Li
- DM Li
- F Li
- G Li
- H Li
- H Li
- HB Li
- HJ Li
- JL Li
- JQ Li
- JS Li
- Ke Li
- LK Li
- Lei Li
- PR Li
- SY Li
- WD Li
- WG Li
- XH Li
- XL Li
- Xiaoyu Li
- ZY Li
- H Liang
- H Liang
- H Liang
- YF Liang
- YT Liang
- GR Liao
- LZ Liao
- J Libby
- CX Lin
- BJ Liu
- CX Liu
- D Liu
- FH Liu
- Fang Liu
- Feng Liu
- HB Liu
- HM Liu
- Huanhuan Liu
- Huihui Liu
- JB Liu
- JL Liu
- JY Liu
- K Liu
- KY Liu
- L Liu
- MH Liu
- PL Liu
- Q Liu
- Q Liu
- SB Liu
- Shuai Liu
- T Liu
- WM Liu
- X Liu
- Y Liu
- YB Liu
- ZA Liu
- ZQ Liu
- XC Lou
- FX Lu
- FX Lu
- HJ Lu
- JD Lu
- JG Lu
- XL Lu
- Y Lu
- YP Lu
- CL Luo
- MX Luo
- PW Luo
- T Luo
- XL Luo
- S Lusso
- XR Lyu
- FC Ma
- HL Ma
- LL Ma
- MM Ma
- QM Ma
- RQ Ma
- RT Ma
- XX Ma
- XY Ma
- FE Maas
- M Maggiora
- S Maldaner
- S Malde
- A Mangoni
- YJ Mao
- ZP Mao
- S Marcello
- ZX Meng
- JG Messchendorp
- G Mezzadri
- TJ Min
- RE Mitchell
- XH Mo
- YJ Mo
- N Yu Muchnoi
- H Muramatsu
- S Nakhoul
- Y Nefedov
- F Nerling
- IB Nikolaev
- Z Ning
- S Nisar
- SL Olsen
- Q Ouyang
- S Pacetti
- X Pan
- Y Pan
- A Pathak
- P Patteri
- M Pelizaeus
- HP Peng
- K Peters
- J Pettersson
- JL Ping
- RG Ping
- R Poling
- V Prasad
- H Qi
- HR Qi
- KH Qi
- M Qi
- TY Qi
- TY Qi
- S Qian
- WB Qian
- Z Qian
- CF Qiao
- LQ Qin
- XP Qin
- XS Qin
- ZH Qin
- JF Qiu
- SQ Qu
- KH Rashid
- K Ravindran
- CF Redmer
- A Rivetti
- V Rodin
- M Rolo
- G Rong
- Ch Rosner
- M Rump
- HS Sang
- A Sarantsev
- Y Schelhaas
- C Schnier
- K Schoenning
- M Scodeggio
- DC Shan
- W Shan
- XY Shan
- JF Shangguan
- M Shao
- CP Shen
- HF Shen
- PX Shen
- XY Shen
- HC Shi
- RS Shi
- X Shi
- XD Shi
- JJ Song
- WM Song
- YX Song
- S Sosio
- S Spataro
- KX Su
- PP Su
- FF Sui
- GX Sun
- HK Sun
- JF Sun
- L Sun
- SS Sun
- T Sun
- WY Sun
- WY Sun
- X Sun
- YJ Sun
- YK Sun
- YZ Sun
- ZT Sun
- YH Tan
- YX Tan
- CJ Tang
- GY Tang
- J Tang
- JX Teng
- V Thoren
- WH Tian
- YT Tian
- I Uman
- B Wang
- CW Wang
- DY Wang
- HJ Wang
- HP Wang
- K Wang
- LL Wang
- M Wang
- MZ Wang
- Meng Wang
- W Wang
- WH Wang
- WP Wang
- X Wang
- XF Wang
- XL Wang
- Y Wang
- Y Wang
- YD Wang
- YF Wang
- YQ Wang
- YY Wang
- Z Wang
- ZY Wang
- Ziyi Wang
- Zongyuan Wang
- DH Wei
- P Weidenkaff
- F Weidner
- SP Wen
- DJ White
- U Wiedner
- G Wilkinson
- M Wolke
- L Wollenberg
- JF Wu
- LH Wu
- LJ Wu
- X Wu
- Z Wu
- L Xia
- H Xiao
- SY Xiao
- ZJ Xiao
- XH Xie
- YG Xie
- YH Xie
- TY Xing
- GF Xu
- QJ Xu
- W Xu
- XP Xu
- YC Xu
- F Yan
- L Yan
- WB Yan
- WC Yan
- Xu Yan
- HJ Yang
- HX Yang
- L Yang
- SL Yang
- YX Yang
- Yifan Yang
- Zhi Yang
- M Ye
- MH Ye
- JH Yin
- ZY You
- BX Yu
- CX Yu
- G Yu
- JS Yu
- T Yu
- CZ Yuan
- L Yuan
- XQ Yuan
- Y Yuan
- ZY Yuan
- CX Yue
- A Yuncu
- AA Zafar
- Y Zeng
- AQ Zhang
- BX Zhang
- Guangyi Zhang
- H Zhang
- HH Zhang
- HH Zhang
- HY Zhang
- JJ Zhang
- JL Zhang
- JQ Zhang
- JW Zhang
- JY Zhang
- JZ Zhang
- Jianyu Zhang
- Jiawei Zhang
- LM Zhang
- LQ Zhang
- Lei Zhang
- S Zhang
- SF Zhang
- Shulei Zhang
- XD Zhang
- XY Zhang
- Y Zhang
- YH Zhang
- YT Zhang
- Yan Zhang
- Yao Zhang
- Yi Zhang
- ZH Zhang
- ZY Zhang
- G Zhao
- J Zhao
- JY Zhao
- JZ Zhao
- Lei Zhao
- Ling Zhao
- MG Zhao
- Q Zhao
- SJ Zhao
- YB Zhao
- YX Zhao
- ZG Zhao
- A Zhemchugov
- B Zheng
- JP Zheng
- Y Zheng
- YH Zheng
- B Zhong
- C Zhong
- LP Zhou
- Q Zhou
- X Zhou
- XK Zhou
- XR Zhou
- XY Zhou
- AN Zhu
- J Zhu
- K Zhu
- KJ Zhu
- SH Zhu
- TJ Zhu
- WJ Zhu
- WJ Zhu
- YC Zhu
- ZA Zhu
- BS Zou
- JH Zou
- Autoren-URL
- http://arxiv.org/abs/2102.11734v2
- Zeitschrift
- Phys. Rev. D
- Schlüsselwörter
- hep-ex
- hep-ex
- Notes
- Minor revisions, version accepted by PRD
- Paginierung
- 052009 - 052009
- Datum der Veröffentlichung
- 2021
- Herausgeber URL
- http://dx.doi.org/10.1103/PhysRevD.104.052009
- Datum der Datenerfassung
- 2022
- Titel
- Measurement of the absolute branching fractions for purely leptonic D_s^+ decays
- Ausgabe der Zeitschrift
- 104
Data source: Manual
- Beziehungen:
- Property of