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

Lees, J. .; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Brown, D. .; Kolomensky, Y. .; Fritsch, M.; Koch, H.; Cheaib, R.; Hearty, C.; Mattison, T. .; Mckenna, J. .; R.  y., S.; Blinov, V. .; Buzykaev, A. .; Druzhinin, V. .; Kozyrev, E. .; Kravchenko, E. .; Serednyakov, S. .; Skovpen, Y. .; Solodov, E. .; Todyshev, K. .; Lankford, A. .; Dey, B.; Gary, J. .; Long, O.; Eisner, A. .; Lockman, W. .; Panduro Vazquez, W.; Chao, D. .; Cheng, C. .; Echenard, B.; Flood, K. .; Hitlin, D. .; Li, Y.; Lin, D. .; Middleton, S.; Miyashita, T. .; Ongmongkolkul, P.; Oyang, J.; Porter, F. .; Röhrken, M.; Meadows, B. .; Sokoloff, M. .; Smith, J. .; Wagner, S. .; 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, I. .; Piccolo, M.; Rotondo, M.; Zallo, A.; Passaggio, S.; Patrignani, C.; Shuve, B. .; Lacker, H. .; Bhuyan, B.; Mallik, U.; Chen, C.; Cochran, J.; Prell, S.; Gritsan, A. .; Arnaud, N.; Davier, M.; Le Diberder, F.; Lutz, A. .; Wormser, G.; Lange, D. .; Wright, D. .; Coleman, J. .; Hutchcroft, D. .; Payne, D. .; Touramanis, C.; Bevan, A. .; Bona, M.; Di Lodovico, F.; Cowan, G.; Banerjee, S.; Brown, D. .; Davis, C. .; Denig, A. .; Gradl, W.; Griessinger, K.; Hafner, A.; Schubert, K. .; Barlow, R. .; Lafferty, G. .; Cenci, R.; Jawahery, A.; Roberts, D. .; Cowan, R.; Robertson, S. .; Seddon, R. .; Neri, N.; Palombo, F.; Cremaldi, L.; Godang, R.; Summers, D. .; De Nardo, G.; Sciacca, C.; Jessop, C. .; Losecco, J. .; Honscheid, K.; Gaz, A.; Margoni, M.; Simi, G.; Simonetto, F.; Stroili, R.; Akar, S.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. .; Calderini, G.; Chauveau, J.; Marchiori, G.; Ocariz, J.; Biasini, M.; Manoni, E.; Rossi, A.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Chrzaszcz, M.; Forti, F.; Giorgi, M. .; Lusiani, A.; Oberhof, B.; Paoloni, E.; Rama, M.; Rizzo, G.; Walsh, J. .; Zani, L.; Smith, A. . .; Anulli, F.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Pilloni, A.; Bünger, C.; Dittrich, S.; Grünberg, O.; Leddig, T.; Voß, C.; Waldi, R.; Adye, T.; Wilson, F. .; Emery, S.; Vasseur, G.; Aston, D.; Cartaro, C.; Convery, M. .; Dunwoodie, W.; Ebert, M.; Field, R. .; Fulsom, B. .; Graham, M. .; Hast, C.; Kim, P.; Luitz, S.; Macfarlane, D. .; Muller, D. .; Neal, H.; Ratcliff, B. .; Roodman, A.; Sullivan, M. .; Va'Vra, J.; Wisniewski, W. .; Purohit, M. .; Wilson, J. .; Sekula, S. .; Ahmed, H.; Tasneem, N.; Bellis, M.; Burchat, P. .; Puccio, E. . .; Ernst, J. .; Gorodeisky, R.; Guttman, N.; Peimer, D. .; Soffer, A.; Spanier, S. .; Ritchie, J. .; Izen, J. .; Lou, X. .; Bianchi, F.; De Mori, F.; Filippi, A.; Lanceri, L.; Vitale, L.; Martinez-Vidal, F.; Oyanguren, A.; Albert, J.; Beaulieu, A.; Bernlochner, F. .; King, G. .; Kowalewski, R.; Lueck, T.; Miller, C.; Nugent, I. .; Roney, J. .; Sobie, R. .; Gershon, T. .; Harrison, P. .; Latham, T. .; S.  l., W.

doi:10.1103/physrevd.111.l031101

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<2.99 GeV. These results set strong constraints on the parameter space allowed by B-meson baryogenesis. (BaBar Collaboration)

Search for baryogenesis and dark matter in B⁺ → Λc⁺ +invisible decays / J. . Lees, V.P.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 111:3(2025 Feb 10), pp. L031101.1-L031101.6. [Epub ahead of print] [10.1103/physrevd.111.l031101]

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

Lees, J. P.^Primo;Poireau, V.^Secondo;Tisserand, V.;Grauges, E.;Palano, A.;Eigen, G.;Brown, D. N.;Kolomensky, Yu. G.;Fritsch, M.;Koch, H.;Cheaib, R.;Hearty, C.;Mattison, T. S.;McKenna, J. A.;So, R. Y.;Blinov, V. E.;Buzykaev, A. R.;Druzhinin, V. P.;Kozyrev, E. A.;Kravchenko, E. A.;Serednyakov, S. I.;Skovpen, Yu. I.;Solodov, E. P.;Todyshev, K. Yu.;Lankford, A. J.;Dey, B.;Gary, J. W.;Long, O.;Eisner, A. M.;Lockman, W. S.;Panduro Vazquez, W.;Chao, D. S.;Cheng, C. H.;Echenard, B.;Flood, K. T.;Hitlin, D. G.;Li, Y.;Lin, D. X.;Middleton, S.;Miyashita, T. S.;Ongmongkolkul, P.;Oyang, J.;Porter, F. C.;Röhrken, M.;Meadows, B. T.;Sokoloff, M. D.;Smith, J. G.;Wagner, S. R.;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, I. M.;Piccolo, M.;Rotondo, M.;Zallo, A.;Passaggio, S.;Patrignani, C.;Shuve, B. J.;Lacker, H. M.;Bhuyan, B.;Mallik, U.;Chen, C.;Cochran, J.;Prell, S.;Gritsan, A. V.;Arnaud, N.;Davier, M.;Le Diberder, F.;Lutz, A. M.;Wormser, G.;Lange, D. J.;Wright, D. M.;Coleman, J. P.;Hutchcroft, D. E.;Payne, D. J.;Touramanis, C.;Bevan, A. J.;Bona, M.;Di Lodovico, F.;Cowan, G.;Banerjee, Sw.;Brown, D. N.;Davis, C. L.;Denig, A. G.;Gradl, W.;Griessinger, K.;Hafner, A.;Schubert, K. R.;Barlow, R. J.;Lafferty, G. D.;Cenci, R.;Jawahery, A.;Roberts, D. A.;Cowan, R.;Robertson, S. H.;Seddon, R. M.;N. Neri;F. Palombo;Cremaldi, L.;Godang, R.;Summers, D. J.;De Nardo, G.;Sciacca, C.;Jessop, C. P.;LoSecco, J. M.;Honscheid, K.;Gaz, A.;Margoni, M.;Simi, G.;F. Simonetto;Stroili, R.;Akar, S.;Ben-Haim, E.;Bomben, M.;Bonneaud, G. R.;Calderini, G.;Chauveau, J.;Marchiori, G.;Ocariz, J.;Biasini, M.;Manoni, E.;Rossi, A.;Batignani, G.;Bettarini, S.;Carpinelli, M.;Casarosa, G.;Chrzaszcz, M.;Forti, F.;Giorgi, M. A.;Lusiani, A.;Oberhof, B.;Paoloni, E.;Rama, M.;Rizzo, G.;Walsh, J. J.;Zani, L.;Smith, A. J. S.;Anulli, F.;Faccini, R.;Ferrarotto, F.;Ferroni, F.;Pilloni, A.;Bünger, C.;Dittrich, S.;Grünberg, O.;Leddig, T.;Voß, C.;Waldi, R.;Adye, T.;Wilson, F. F.;Emery, S.;Vasseur, G.;Aston, D.;Cartaro, C.;Convery, M. R.;Dunwoodie, W.;Ebert, M.;Field, R. C.;Fulsom, B. G.;Graham, M. T.;Hast, C.;Kim, P.;Luitz, S.;MacFarlane, D. B.;Muller, D. R.;Neal, H.;Ratcliff, B. N.;Roodman, A.;Sullivan, M. K.;Va'vra, J.;Wisniewski, W. J.;Purohit, M. V.;Wilson, J. R.;Sekula, S. J.;Ahmed, H.;Tasneem, N.;Bellis, M.;Burchat, P. R.;Puccio, E. M. T.;Ernst, J. A.;Gorodeisky, R.;Guttman, N.;Peimer, D. R.;Soffer, A.;Spanier, S. M.;Ritchie, J. L.;Izen, J. M.;Lou, X. C.;Bianchi, F.;De Mori, F.;Filippi, A.;Lanceri, L.;Vitale, L.;Martinez-Vidal, F.;Oyanguren, A.;Albert, J.;Beaulieu, A.;Bernlochner, F. U.;King, G. J.;Kowalewski, R.;Lueck, T.;Miller, C.;Nugent, I. M.;Roney, J. M.;Sobie, R. J.;Gershon, T. J.;Harrison, P. F.;Latham, T. E.^Penultimo;Wu, S. L.^Ultimo

2025

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<2.99 GeV. These results set strong constraints on the parameter space allowed by B-meson baryogenesis. (BaBar Collaboration)

Scheda breve

Scheda completa

Scheda completa (DC)

	Settori scientifico-disciplinari dell'articolo (validi dal 09/05/2024)
	
				Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
			
	Data di pubblicazione
	
				10-feb-2025
			
	Rivista in ANCE
	
				PHYSICAL REVIEW D
			
	DOI
	
				https://dx.doi.org/10.1103/physrevd.111.l031101
			
	Tipologia
	
				Article (author)
			
	Appare nelle tipologie:
	
				01 - Articolo su periodico

File in questo prodotto:

File	Dimensione	Formato
PhysRevD111L03110.pdf accesso aperto Tipologia: Publisher's version/PDF Licenza: Creative commons Dimensione 750.23 kB Formato Adobe PDF Visualizza/Apri	750.23 kB	Adobe PDF	Visualizza/Apri

Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1250637

Citazioni

ND

1

1

0

IRIS Institutional Research Information System - AIR Archivio Istituzionale della Ricerca