Dieses Ergebnis aus BASE kann Gästen nicht angezeigt werden. Login für vollen Zugriff.

Search for baryogenesis and dark matter in B+ → Λc+ +invisible decays

Title:	Search for baryogenesis and dark matter in B+ → Λc+ +invisible decays
Authors:	Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, DN; Kolomensky, YG; Fritsch, M; Koch, H; Cheaib, R; Hearty, C; Mattison, TS; McKenna, JA; So, RY; Blinov, VE; Buzykaev, AR; Druzhinin, VP; Kozyrev, EA; Kravchenko, EA; Serednyakov, SI; Skovpen, YI; Solodov, EP; Todyshev, KY; Lankford, AJ; Dey, B; Gary, JW; Long, O; Eisner, AM; Lockman, WS; Panduro Vazquez, W; Chao, DS; Cheng, CH; Echenard, B; Flood, KT; Hitlin, DG; Li, Y; Lin, DX; Middleton, S; Miyashita, TS; Ongmongkolkul, P; Oyang, J; Porter, FC; Röhrken, M; Meadows, BT; Sokoloff, MD; Smith, JG; Wagner, SR; Bernard, D; Verderi, M; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Santoro, V; Calcaterra, A; De Sangro, R; Finocchiaro, G; Martellotti, S; Patteri, P; Peruzzi, IM; Piccolo, M; Rotondo, M; Zallo, A; Passaggio, S; Patrignani, C; Shuve, BJ; Lacker, HM; Bhuyan, B; Mallik, U; Chen, C; Cochran, J; Prell, S; Gritsan, AV; Arnaud, N; Davier, M; Le Diberder, F; Lutz, AM; Wormser, G; Lange, DJ; Wright, DM; Coleman, JP; Hutchcroft, DE; Payne, DJ; Touramanis, C; Bevan, AJ; Bona, M; Di Lodovico, F; Cowan, G; Banerjee, S; Davis, CL; Denig, AG; Gradl, W; Griessinger, K; Hafner, A; Schubert, KR
Publication Year:	2025
Collection:	The University of Liverpool Repository
Description:	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
Document Type:	article in journal/newspaper
Language:	unknown
ISSN:	2470-0010
Relation:	Collapse authors list. Lees, JP orcid:0000-0002-3464-7502 , Poireau, V orcid:0000-0002-4768-0256 , Tisserand, V orcid:0000-0003-4916-0446 , Grauges, E orcid:0000-0001-6571-4096 , Palano, A orcid:0000-0002-6095-9593 , Eigen, G orcid:0000-0003-3529-5171 , Brown, DN orcid:0000-0002-9635-4174 , Kolomensky, YG orcid:0000-0001-8496-9975 , Fritsch, M orcid:0000-0002-6463-8295 , Koch, H orcid:0000-0002-0791-7626 et al (show 90 more authors) , Cheaib, R orcid:0000-0001-5729-8926 , Hearty, C orcid:0000-0001-6568-0252 , Mattison, TS orcid:0000-0001-6815-5656 , McKenna, JA orcid:0000-0001-9871-9002 , So, RY orcid:0000-0002-8252-3571 , Blinov, VE, Buzykaev, AR, Druzhinin, VP orcid:0000-0001-5452-8909 , Kozyrev, EA orcid:0000-0002-4469-7669 , Kravchenko, EA orcid:0000-0002-6104-4395 , Serednyakov, SI orcid:0000-0002-3948-9101 , Skovpen, YI orcid:0000-0002-3316-0604 , Solodov, EP orcid:0000-0002-1624-2675 , Todyshev, KY orcid:0000-0002-3356-4385 , Lankford, AJ orcid:0000-0001-8057-4351 , Dey, B orcid:0000-0002-4563-5806 , Gary, JW orcid:0000-0003-0175-5731 , Long, O orcid:0000-0002-2180-7634 , Eisner, AM orcid:0000-0002-5673-7445 , Lockman, WS orcid:0000-0002-2190-8785 , Panduro Vazquez, W orcid:0000-0003-2605-8940 , Chao, DS orcid:0000-0002-6903-2719 , Cheng, CH orcid:0000-0001-8807-7413 , Echenard, B orcid:0000-0002-3866-9370 , Flood, KT orcid:0000-0002-3463-6571 , Hitlin, DG orcid:0000-0003-4028-6982 , Li, Y orcid:0000-0001-9004-2471 , Lin, DX orcid:0000-0003-2943-9343 , Middleton, S orcid:0000-0003-3380-5908 , Miyashita, TS orcid:0000-0003-0536-6370 , Ongmongkolkul, P orcid:0000-0002-8702-3947 , Oyang, J orcid:0000-0002-8019-3978 , Porter, FC orcid:0000-0003-1948-8889 , Röhrken, M, Meadows, BT orcid:0000-0002-1947-8034 , Sokoloff, MD orcid:0000-0001-6181-4583 , Smith, JG orcid:0000-0003-0690-4396 , Wagner, SR orcid:0000-0002-9269-5772 , Bernard, D orcid:0000-0003-4943-7230 , Verderi, M orcid:0000-0001-6956-5163 , Bettoni, D orcid:0000-0003-1042-8791 , Bozzi, C orcid:0000-0001-6782-3982 , Calabrese, R orcid:0000-0002-1354-5400 , Cibinetto, G orcid:0000-0002-3491-6231 , Fioravanti, E orcid:0000-0003-0453-6630 , Garzia, I orcid:0000-0002-0412-4161 , Luppi, E orcid:0000-0002-1072-5633 , Santoro, V orcid:0000-0001-5379-8771 , Calcaterra, A orcid:0000-0003-2670-4826 , De Sangro, R orcid:0000-0002-3808-5455 , Finocchiaro, G orcid:0000-0002-3936-2151 , Martellotti, S orcid:0000-0002-4363-7816 , Patteri, P orcid:0000-0001-8848-3825 , Peruzzi, IM orcid:0000-0001-6729-8436 , Piccolo, M orcid:0000-0001-9750-0551 , Rotondo, M orcid:0000-0001-5704-6163 , Zallo, A orcid:0000-0002-2212-2821 , Passaggio, S orcid:0000-0001-9200-5738 , Patrignani, C orcid:0000-0002-5882-1747 , Shuve, BJ orcid:0000-0002-3524-2021 , Lacker, HM orcid:0000-0002-7183-8607 , Bhuyan, B orcid:0000-0001-6254-3594 , Mallik, U orcid:0000-0001-7934-1649 , Chen, C orcid:0000-0003-1589-9955 , Cochran, J orcid:0000-0002-1492-914X , Prell, S orcid:0000-0002-0195-8005 , Gritsan, AV orcid:0000-0002-3545-7970 , Arnaud, N orcid:0000-0001-6589-8673 , Davier, M orcid:0000-0002-0337-1013 , Le Diberder, F orcid:0000-0002-9073-5689 , Lutz, AM orcid:0000-0002-3885-8518 , Wormser, G orcid:0000-0003-4077-6295 , Lange, DJ orcid:0000-0002-9086-5184 , Wright, DM orcid:0000-0002-3586-3354 , Coleman, JP orcid:0000-0003-1319-0889 , Hutchcroft, DE orcid:0000-0002-4174-6509 , Payne, DJ orcid:0000-0002-8520-5210 , Touramanis, C orcid:0000-0001-5191-2171 , Bevan, AJ orcid:0000-0002-4105-9629 , Bona, M orcid:0000-0002-9660-580X , Di Lodovico, F orcid:0000-0003-3952-2175 , Cowan, G orcid:0000-0001-8363-9827 , Banerjee, S orcid:0000-0001-8852-2409 , Brown, DN orcid:0000-0001-6657-1568 , Davis, CL orcid:0000-0002-5674-0513 , Denig, AG orcid:0000-0001-7974-5854 , Gradl, W orcid:0000-0002-9974-8320 , Griessinger, K orcid:0000-0002-9300-1656 , Hafner, A orcid:0000-0002-5853-8503 and Schubert, KR orcid:0000-0002-2247-1618 (2025) Search for baryogenesis and dark matter in B+ → Λc+ +invisible decays Physical Review D, 111 (3). l031101-. ISSN 2470-0010, 2470-0029
DOI:	10.1103/PhysRevD.111.L031101
Availability:	https://livrepository.liverpool.ac.uk/3196011/; https://doi.org/10.1103/PhysRevD.111.L031101
Accession Number:	edsbas.D0835FA4
Database:	BASE