Search for the dark photon in $B^0 \to A^{\prime} A^{\prime}$, $A^{\prime} \to e^+ e^-$, $\mu^+ \mu^-$, and $\pi^+ \pi^-$ decays at Belle

S. -H Park; Y. -J Kwon; I Adachi; H Aihara; S. Al Said; D. M Asner; H Atmacan; T Aushev; R Ayad; V Babu; P Behera; J Bennett; M Bessner; V Bhardwaj; B Bhuyan; T Bilka; J Biswal; G Bonvicini; A Bozek; M Bračko; T. E Browder; M Campajola; L Cao; D Červenkov; M. -C Chang; P Chang; A Chen; B. G Cheon; K Chilikin; H. E Cho; K Cho; S. -J Cho; S. -K Choi; Y Choi; S Choudhury; D Cinabro; S Cunliffe; S Das; N Dash; G De Nardo; F Di Capua; J Dingfelder; Z Doležal; T. V Dong; S Eidelman; D Epifanov; D Ferlewicz; B. G Fulsom; R Garg; V Gaur; A Garmash; A Giri; P Goldenzweig; Y Guan; K Gudkova; C Hadjivasiliou; T Hara; O Hartbrich; K Hayasaka; H Hayashii; M. T Hedges; M. Hernandez Villanueva; W. -S Hou; C. -L Hsu; K Huang; T Iijima; K Inami; G Inguglia; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; W. W Jacobs; I Jaegle; E. -J Jang; H. B Jeon; S Jia; Y Jin; C. W Joo; K. K Joo; K. H Kang; G Karyan; T Kawasaki; C Kiesling; D. Y Kim; K. -H Kim; S. H Kim; Y. -K Kim; K Kinoshita; P Kodyš; T Konno; S Korpar; D Kotchetkov; P Križan; R Kroeger; P Krokovny; T Kuhr; M Kumar; K Kumara; K Lalwani; I. S Lee; S. C Lee; C. H Li; J Li; L. K Li; Y. B Li; L. Li Gioi; J Libby; K Lieret; Z Liptak; D Liventsev; T Luo; J MacNaughton; C MacQueen; M Masuda; T Matsuda; D Matvienko; M Merola; F Metzner; K Miyabayashi; R Mizuk; G. B Mohanty; S Mohanty; T Mori; H. -G Moser; M Mrvar; R Mussa; M Nakao; Z Natkaniec; A Natochii; L Nayak; M Nayak; M Niiyama; N. K Nisar; S Nishida; S Ogawa; H Ono; Y Onuki; P Oskin; P Pakhlov; G Pakhlova; S Pardi; C. W Park; H Park; S Patra; S Paul; T. K Pedlar; R Pestotnik; L. E Piilonen; T Podobnik; V Popov; E Prencipe; M. T Prim; M Ritter; M Röhrken; A Rostomyan; N Rout; G Russo; Y Sakai; S Sandilya; A Sangal; L Santelj; T Sanuki; V Savinov; G Schnell; J Schueler; C Schwanda; Y Seino; K Senyo; M. E Sevior; M Shapkin; C Sharma; C. P Shen; J. -G Shiu; A Sokolov; E Solovieva; S Stanič; M Starič; Z. S Stottler; J. F Strube; M Sumihama; K Sumisawa; T Sumiyoshi; W Sutcliffe; M Takizawa; K Tanida; F Tenchini; M Uchida; T Uglov; Y Unno; S Uno; P Urquijo; S. E Vahsen; R Van Tonder; G Varner; K. E Varvell; A Vinokurova; V Vorobyev; E Waheed; C. H Wang; E Wang; M. -Z Wang; P Wang; M Watanabe; S Watanuki; S Wehle; E Won; X Xu; B. D Yabsley; W Yan; S. B Yang; H Ye; J Yelton; J. H Yin; Y Yusa; Z. P Zhang; V Zhilich; V Zhukova; V Zhulanov; Belle Collaboration; I. Badhrees

doi:10.1007/JHEP04(2021)191

$Search for the dark photon in $B^0 \to A^{\prime} A^{\prime}$, $A^{\prime} \to e^+ e^-$, $\mu^+ \mu^-$, and $\pi^+ \pi^-$ decays at Belle$

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Search for the dark photon in $B^0 \to A^{\prime} A^{\prime}$, $A^{\prime} \to e^+ e^-$, $\mu^+ \mu^-$, and $\pi^+ \pi^-$ decays at Belle

S. -H Park, Y. -J Kwon, I Adachi, H Aihara, S. Al Said, D. M Asner, H Atmacan, T Aushev, R Ayad, V Babu, …

JHEP, Vol.4(4), pp.191-19

20/04/2021

DOI: https://doi.org/10.1007/JHEP04(2021)191

Abstract

Physics - High Energy Physics - Experiment

JHEP 04 (2021) 191 We present a search for the dark photon $A^{\prime}$ in the $B^0 \to A^{\prime} A^{\prime}$ decays, where $A^{\prime}$ subsequently decays to $e^+ e^-$, $\mu^+ \mu^-$, and $\pi^+ \pi^-$. The search is performed by analyzing $772 \times 10^6$ $B\overline{B}$ events collected by the Belle detector at the KEKB $e^+ e^-$ energy-asymmetric collider at the $\Upsilon (4S)$ resonance. No signal is found in the dark photon mass range $0.01~\mathrm{GeV}/c^2 \le m_{A^{\prime}} \le 2.62~\mathrm{GeV}/c^2$, and we set upper limits of the branching fraction of $B^0 \to A^{\prime} A^{\prime}$ at the 90\% confidence level. The products of branching fractions, $\mathcal{B}(B^0 \to A^{\prime} A^{\prime}) \times \mathcal{B}(A^{\prime} \to e^+ e^-)^2$ and $\mathcal{B}(B^0 \to A^{\prime} A^{\prime}) \times \mathcal{B}(A^{\prime} \to \mu^+ \mu^-)^2$, have limits of the order of $10^{-8}$ depending on the $A^{\prime}$ mass. Furthermore, considering $A^{\prime}$ decay rate to each pair of charged particles, the upper limits of $\mathcal{B}(B^0 \to A^{\prime} A^{\prime})$ are of the order of $10^{-8}$-$10^{-5}$. From the upper limits of $\mathcal{B}(B^0 \to A^{\prime} A^{\prime})$, we obtain the Higgs portal coupling for each assumed dark photon and dark Higgs mass. The Higgs portal couplings are of the order of $10^{-2}$-$10^{-1}$ at $m_{h'} \simeq m_{B^0} \pm 40~\mathrm{MeV}/c^2$ and $10^{-1}$-$1$ at $m_{h'} \simeq m_{B^0} \pm 3~\mathrm{GeV}/c^2$.

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Title: Search for the dark photon in $B^0 \to A^{\prime} A^{\prime}$, $A^{\prime} \to e^+ e^-$, $\mu^+ \mu^-$, and $\pi^+ \pi^-$ decays at Belle
Creators - without role: S. -H Park - The Belle Collaboration
Y. -J Kwon - The Belle Collaboration
I Adachi - The Belle Collaboration
H Aihara - The Belle Collaboration
S. Al Said - The Belle Collaboration
D. M Asner - The Belle Collaboration
H Atmacan - The Belle Collaboration
T Aushev - The Belle Collaboration
R Ayad - The Belle Collaboration
V Babu - The Belle Collaboration
P Behera - The Belle Collaboration
J Bennett - The Belle Collaboration
M Bessner - The Belle Collaboration
V Bhardwaj - The Belle Collaboration
B Bhuyan - The Belle Collaboration
T Bilka - The Belle Collaboration
J Biswal - The Belle Collaboration
G Bonvicini - The Belle Collaboration
A Bozek - The Belle Collaboration
M Bračko - The Belle Collaboration
T. E Browder - The Belle Collaboration
M Campajola - The Belle Collaboration
L Cao - The Belle Collaboration
D Červenkov - The Belle Collaboration
M. -C Chang - The Belle Collaboration
P Chang - The Belle Collaboration
A Chen - The Belle Collaboration
B. G Cheon - The Belle Collaboration
K Chilikin - The Belle Collaboration
H. E Cho - The Belle Collaboration
K Cho - The Belle Collaboration
S. -J Cho - The Belle Collaboration
S. -K Choi - The Belle Collaboration
Y Choi - The Belle Collaboration
S Choudhury - The Belle Collaboration
D Cinabro - The Belle Collaboration
S Cunliffe - The Belle Collaboration
S Das - The Belle Collaboration
N Dash - The Belle Collaboration
G De Nardo - The Belle Collaboration
F Di Capua - The Belle Collaboration
J Dingfelder - The Belle Collaboration
Z Doležal - The Belle Collaboration
T. V Dong - The Belle Collaboration
S Eidelman - The Belle Collaboration
D Epifanov - The Belle Collaboration
D Ferlewicz - The Belle Collaboration
B. G Fulsom - The Belle Collaboration
R Garg - The Belle Collaboration
V Gaur - The Belle Collaboration
A Garmash - The Belle Collaboration
A Giri - The Belle Collaboration
P Goldenzweig - The Belle Collaboration
Y Guan - The Belle Collaboration
K Gudkova - The Belle Collaboration
C Hadjivasiliou - The Belle Collaboration
T Hara - The Belle Collaboration
O Hartbrich - The Belle Collaboration
K Hayasaka - The Belle Collaboration
H Hayashii - The Belle Collaboration
M. T Hedges - The Belle Collaboration
M. Hernandez Villanueva - The Belle Collaboration
W. -S Hou - The Belle Collaboration
C. -L Hsu - The Belle Collaboration
K Huang - The Belle Collaboration
T Iijima - The Belle Collaboration
K Inami - The Belle Collaboration
G Inguglia - The Belle Collaboration
A Ishikawa - The Belle Collaboration
R Itoh - The Belle Collaboration
M Iwasaki - The Belle Collaboration
Y Iwasaki - The Belle Collaboration
W. W Jacobs - The Belle Collaboration
I Jaegle - The Belle Collaboration
E. -J Jang - The Belle Collaboration
H. B Jeon - The Belle Collaboration
S Jia - The Belle Collaboration
Y Jin - The Belle Collaboration
C. W Joo - The Belle Collaboration
K. K Joo - The Belle Collaboration
K. H Kang - The Belle Collaboration
G Karyan - The Belle Collaboration
T Kawasaki - The Belle Collaboration
C Kiesling - The Belle Collaboration
D. Y Kim - The Belle Collaboration
K. -H Kim - The Belle Collaboration
S. H Kim - The Belle Collaboration
Y. -K Kim - The Belle Collaboration
K Kinoshita - The Belle Collaboration
P Kodyš - The Belle Collaboration
T Konno - The Belle Collaboration
S Korpar - The Belle Collaboration
D Kotchetkov - The Belle Collaboration
P Križan - The Belle Collaboration
R Kroeger - The Belle Collaboration
P Krokovny - The Belle Collaboration
T Kuhr - The Belle Collaboration
M Kumar - The Belle Collaboration
K Kumara - The Belle Collaboration
K Lalwani - The Belle Collaboration
I. S Lee - The Belle Collaboration
S. C Lee - The Belle Collaboration
C. H Li - The Belle Collaboration
J Li - The Belle Collaboration
L. K Li - The Belle Collaboration
Y. B Li - The Belle Collaboration
L. Li Gioi - The Belle Collaboration
J Libby - The Belle Collaboration
K Lieret - The Belle Collaboration
Z Liptak - The Belle Collaboration
D Liventsev - The Belle Collaboration
T Luo - The Belle Collaboration
J MacNaughton - The Belle Collaboration
C MacQueen - The Belle Collaboration
M Masuda - The Belle Collaboration
T Matsuda - The Belle Collaboration
D Matvienko - The Belle Collaboration
M Merola - The Belle Collaboration
F Metzner - The Belle Collaboration
K Miyabayashi - The Belle Collaboration
R Mizuk - The Belle Collaboration
G. B Mohanty - The Belle Collaboration
S Mohanty - The Belle Collaboration
T Mori - The Belle Collaboration
H. -G Moser - The Belle Collaboration
M Mrvar - The Belle Collaboration
R Mussa - The Belle Collaboration
M Nakao - The Belle Collaboration
Z Natkaniec - The Belle Collaboration
A Natochii - The Belle Collaboration
L Nayak - The Belle Collaboration
M Nayak - The Belle Collaboration
M Niiyama - The Belle Collaboration
N. K Nisar - The Belle Collaboration
S Nishida - The Belle Collaboration
S Ogawa - The Belle Collaboration
H Ono - The Belle Collaboration
Y Onuki - The Belle Collaboration
P Oskin - The Belle Collaboration
P Pakhlov - The Belle Collaboration
G Pakhlova - The Belle Collaboration
S Pardi - The Belle Collaboration
C. W Park - The Belle Collaboration
H Park - The Belle Collaboration
S Patra - The Belle Collaboration
S Paul - The Belle Collaboration
T. K Pedlar - The Belle Collaboration
R Pestotnik - The Belle Collaboration
L. E Piilonen - The Belle Collaboration
T Podobnik - The Belle Collaboration
V Popov - The Belle Collaboration
E Prencipe - The Belle Collaboration
M. T Prim - The Belle Collaboration
M Ritter - The Belle Collaboration
M Röhrken - The Belle Collaboration
A Rostomyan - The Belle Collaboration
N Rout - The Belle Collaboration
G Russo - The Belle Collaboration
Y Sakai - The Belle Collaboration
S Sandilya - The Belle Collaboration
A Sangal - The Belle Collaboration
L Santelj - The Belle Collaboration
T Sanuki - The Belle Collaboration
V Savinov - The Belle Collaboration
G Schnell - The Belle Collaboration
J Schueler - The Belle Collaboration
C Schwanda - The Belle Collaboration
Y Seino - The Belle Collaboration
K Senyo - The Belle Collaboration
M. E Sevior - The Belle Collaboration
M Shapkin - The Belle Collaboration
C Sharma - The Belle Collaboration
C. P Shen - The Belle Collaboration
J. -G Shiu - The Belle Collaboration
A Sokolov - The Belle Collaboration
E Solovieva - The Belle Collaboration
S Stanič - The Belle Collaboration
M Starič - The Belle Collaboration
Z. S Stottler - The Belle Collaboration
J. F Strube - The Belle Collaboration
M Sumihama - The Belle Collaboration
K Sumisawa - The Belle Collaboration
T Sumiyoshi - The Belle Collaboration
W Sutcliffe - The Belle Collaboration
M Takizawa - The Belle Collaboration
K Tanida - The Belle Collaboration
F Tenchini - The Belle Collaboration
M Uchida - The Belle Collaboration
T Uglov - The Belle Collaboration
Y Unno - The Belle Collaboration
S Uno - The Belle Collaboration
P Urquijo - The Belle Collaboration
S. E Vahsen - The Belle Collaboration
R Van Tonder - The Belle Collaboration
G Varner - The Belle Collaboration
K. E Varvell - The Belle Collaboration
A Vinokurova - The Belle Collaboration
V Vorobyev - The Belle Collaboration
E Waheed - The Belle Collaboration
C. H Wang - The Belle Collaboration
E Wang - The Belle Collaboration
M. -Z Wang - The Belle Collaboration
P Wang - The Belle Collaboration
M Watanabe - The Belle Collaboration
S Watanuki - The Belle Collaboration
S Wehle - The Belle Collaboration
E Won - The Belle Collaboration
X Xu - The Belle Collaboration
B. D Yabsley - The Belle Collaboration
W Yan - The Belle Collaboration
S. B Yang - The Belle Collaboration
H Ye - The Belle Collaboration
J Yelton - The Belle Collaboration
J. H Yin - The Belle Collaboration
Y Yusa - The Belle Collaboration
Z. P Zhang - The Belle Collaboration
V Zhilich - The Belle Collaboration
V Zhukova - The Belle Collaboration
V Zhulanov - The Belle Collaboration
Belle Collaboration
I. Badhrees - King Abdulaziz City for Science & Technology
Publication Details: JHEP, Vol.4(4), pp.191-19
Identifiers: 9918740608331
Academic Unit: King Abdulaziz City for Science & Technology; University of Tabuk; Najran University
Language: English
Resource Type: Preprint