Abstract
A mechanism of baryogenesis and dark matter production via B meson oscillations and decays has recently been proposed to explain the observed dark matter abundance and matter-antimatter asymmetry in the universe. This mechanism introduces a low-mass dark sector particle (ψD) with a nonzero baryonic charge. We present a search for this new state in B+→Λc+ψD decays using data collected at the ϒ(4S) resonance by the BABAR detector at SLAC, corresponding to an integrated luminosity of 431.0 fb-1. The search leverages the full reconstruction of the B- meson in ϒ(4S)→B+B- decays, accompanied by the reconstruction of a Λc+, to infer the presence of ψD. No significant signal is observed, and limits on the B+→Λc+ψD branching fraction are set at the level of 1.6×10-4 at 90% confidence level for 0.94<mψD<2.99 GeV. These results set strong constraints on the parameter space allowed by B-meson baryogenesis.
More Information
Divisions: | Carnegie School of Sport |
---|---|
Identification Number: | https://doi.org/10.1103/PhysRevD.111.L031101 |
Status: | Published |
Refereed: | Yes |
SWORD Depositor: | Symplectic |
Depositing User (symplectic) | Deposited by Mann, Elizabeth |
Date Deposited: | 18 Mar 2025 16:00 |
Last Modified: | 29 Mar 2025 13:34 |
Item Type: | Article |
Export Citation
Explore Further
Read more research from the author(s):
-
JP Lees
ORCID: 0000-0002-3464-7502
-
V Poireau
ORCID: 0000-0002-4768-0256
-
V Tisserand
ORCID: 0000-0003-4916-0446
-
E Grauges
ORCID: 0000-0001-6571-4096
-
A Palano
ORCID: 0000-0002-6095-9593
-
G Eigen
ORCID: 0000-0003-3529-5171
-
DN Brown
ORCID: 0000-0002-9635-4174
-
YG Kolomensky
ORCID: 0000-0001-8496-9975
-
M Fritsch
ORCID: 0000-0002-6463-8295
-
H Koch
ORCID: 0000-0002-0791-7626
-
R Cheaib
ORCID: 0000-0001-5729-8926
-
C Hearty
ORCID: 0000-0001-6568-0252
-
TS Mattison
ORCID: 0000-0001-6815-5656
-
JA McKenna
ORCID: 0000-0001-9871-9002
-
RY So
ORCID: 0000-0002-8252-3571
- VE Blinov
- AR Buzykaev
-
VP Druzhinin
ORCID: 0000-0001-5452-8909
-
EA Kozyrev
ORCID: 0000-0002-4469-7669
-
EA Kravchenko
ORCID: 0000-0002-6104-4395
-
SI Serednyakov
ORCID: 0000-0002-3948-9101
-
YI Skovpen
ORCID: 0000-0002-3316-0604
-
EP Solodov
ORCID: 0000-0002-1624-2675
-
KY Todyshev
ORCID: 0000-0002-3356-4385
-
AJ Lankford
ORCID: 0000-0001-8057-4351
-
B Dey
ORCID: 0000-0002-4563-5806
-
JW Gary
ORCID: 0000-0003-0175-5731
-
O Long
ORCID: 0000-0002-2180-7634
-
AM Eisner
ORCID: 0000-0002-5673-7445
-
WS Lockman
ORCID: 0000-0002-2190-8785
-
W Panduro Vazquez
ORCID: 0000-0003-2605-8940
-
DS Chao
ORCID: 0000-0002-6903-2719
-
CH Cheng
ORCID: 0000-0001-8807-7413
-
B Echenard
ORCID: 0000-0002-3866-9370
-
KT Flood
ORCID: 0000-0002-3463-6571
-
DG Hitlin
ORCID: 0000-0003-4028-6982
-
Y Li
ORCID: 0000-0001-9004-2471
-
DX Lin
ORCID: 0000-0003-2943-9343
-
S Middleton
ORCID: 0000-0003-3380-5908
-
TS Miyashita
ORCID: 0000-0003-0536-6370
-
P Ongmongkolkul
ORCID: 0000-0002-8702-3947
-
J Oyang
ORCID: 0000-0002-8019-3978
-
FC Porter
ORCID: 0000-0003-1948-8889
- M Röhrken
-
BT Meadows
ORCID: 0000-0002-1947-8034
-
MD Sokoloff
ORCID: 0000-0001-6181-4583
-
JG Smith
ORCID: 0000-0003-0690-4396
-
SR Wagner
ORCID: 0000-0002-9269-5772
-
D Bernard
ORCID: 0000-0003-4943-7230
-
M Verderi
ORCID: 0000-0001-6956-5163
-
D Bettoni
ORCID: 0000-0003-1042-8791
-
C Bozzi
ORCID: 0000-0001-6782-3982
-
R Calabrese
ORCID: 0000-0002-1354-5400
-
G Cibinetto
ORCID: 0000-0002-3491-6231
-
E Fioravanti
ORCID: 0000-0003-0453-6630
-
I Garzia
ORCID: 0000-0002-0412-4161
-
E Luppi
ORCID: 0000-0002-1072-5633
-
V Santoro
ORCID: 0000-0001-5379-8771
-
A Calcaterra
ORCID: 0000-0003-2670-4826
-
R De Sangro
ORCID: 0000-0002-3808-5455
-
G Finocchiaro
ORCID: 0000-0002-3936-2151
-
S Martellotti
ORCID: 0000-0002-4363-7816
-
P Patteri
ORCID: 0000-0001-8848-3825
-
IM Peruzzi
ORCID: 0000-0001-6729-8436
-
M Piccolo
ORCID: 0000-0001-9750-0551
-
M Rotondo
ORCID: 0000-0001-5704-6163
-
A Zallo
ORCID: 0000-0002-2212-2821
-
S Passaggio
ORCID: 0000-0001-9200-5738
-
C Patrignani
ORCID: 0000-0002-5882-1747
-
BJ Shuve
ORCID: 0000-0002-3524-2021
-
HM Lacker
ORCID: 0000-0002-7183-8607
-
B Bhuyan
ORCID: 0000-0001-6254-3594
-
U Mallik
ORCID: 0000-0001-7934-1649
-
C Chen
ORCID: 0000-0003-1589-9955
-
J Cochran
ORCID: 0000-0002-1492-914X
-
S Prell
ORCID: 0000-0002-0195-8005
-
AV Gritsan
ORCID: 0000-0002-3545-7970
-
N Arnaud
ORCID: 0000-0001-6589-8673
-
M Davier
ORCID: 0000-0002-0337-1013
-
F Le Diberder
ORCID: 0000-0002-9073-5689
-
AM Lutz
ORCID: 0000-0002-3885-8518
-
G Wormser
ORCID: 0000-0003-4077-6295
-
DJ Lange
ORCID: 0000-0002-9086-5184
-
DM Wright
ORCID: 0000-0002-3586-3354
-
JP Coleman
ORCID: 0000-0003-1319-0889
-
DE Hutchcroft
ORCID: 0000-0002-4174-6509
-
DJ Payne
ORCID: 0000-0002-8520-5210
-
C Touramanis
ORCID: 0000-0001-5191-2171
-
AJ Bevan
ORCID: 0000-0002-4105-9629
-
M Bona
ORCID: 0000-0002-9660-580X
-
F Di Lodovico
ORCID: 0000-0003-3952-2175
-
G Cowan
ORCID: 0000-0001-8363-9827
-
S Banerjee
ORCID: 0000-0001-8852-2409
-
DN Brown
ORCID: 0000-0001-6657-1568
-
CL Davis
ORCID: 0000-0002-5674-0513
-
AG Denig
ORCID: 0000-0001-7974-5854
-
W Gradl
ORCID: 0000-0002-9974-8320
-
K Griessinger
ORCID: 0000-0002-9300-1656
-
A Hafner
ORCID: 0000-0002-5853-8503
-
KR Schubert
ORCID: 0000-0002-2247-1618