Journal articles
Model-independent evidence for J/ψp contributions to Λ0b→J/ψpK− decays
R. Aaij
L. Beaucourt
1
M. Chefdeville
1
D. Decamp
1
N. Déléage
1
P. Ghez
1
J.-P. Lees
1
J.-F. Marchand
1
M.-N. Minard
1
B. Pietrzyk
1
S. t'Jampens
1
V. Tisserand
1
E. Tournefier
1
S. Akar
2
E. Aslanides
2
J. Cogan
2
K. De Bruyn
2
W. Kanso
2
R. Legac
2
O. Leroy
2
G. Mancinelli
2
M. Martin
2
A. Mordà
2
J. Serrano
2
A. Tayduganov
2
A. Tsaregorodtsev
2
Y. Amhis
3
S. Barsuk
3
F. Fleuret
3
O. Kochebina
3
J. Lefrançois
3
Y. Li
3
F. Machefert
3
G. Manca
3
L.M. Massacrier
3
R. Quagliani
3
V. Renaudin
3
P. Robbe
3
M.-H. Schune
3
A. Vallier
3
B. Viaud
3
G. Wormser
3
Z.J. Ajaltouni
4
M. Baalouch
4
E. Cogneras
4
O. Deschamps
4
I. El Rifai
4
G. Gazzoni
4
M. Grabalosa Gándara
4
P. Henrard
4
M. Hoballah
4
M. Kozeiha
4
R. Lefèvre
4
J. Maratas
4
S. Monteil
4
V. Niess
4
P. Perret
4
R. Aaij
Author
L. Beaucourt 1
Author
M. Chefdeville 1
Author IdHAL : maximilien-chefdeville ORCID : https://orcid.org/0000-0002-6553-6493 arXiv : https://arxiv.org/a/Maximilien Chefdeville MC
D. Decamp 1
Author
M.-N. Minard 1
Author
B. Pietrzyk 1
Author
S. t'Jampens 1
Author IdHAL : stephane-tjampens ORCID : https://orcid.org/0000-0003-4249-6641
V. Tisserand 1
Author
K. De Bruyn 2
Author
W. Kanso 2
Author
R. Legac 2
Author
O. Leroy 2
Author IdHAL : olivier-leroy ORCID : https://orcid.org/0000-0002-2589-240X
G. Mancinelli 2
Author
M. Martin 2
Author
A. Mordà 2
Author
J. Serrano 2
Author IdHAL : justine-serrano arXiv : https://arxiv.org/a/Justine Serrano ORCID : https://orcid.org/0000-0003-2489-7812
E. Cogneras 4
Author IdHAL : eric-cogneras ORCID : https://orcid.org/0000-0002-8933-9427
O. Deschamps 4
Author IdHAL : olivier-deschamps arXiv : http://arxiv.org/a/deschamps_o_1 ORCID : https://orcid.org/0000-0002-7047-6042
I. El Rifai 4
Author
G. Gazzoni 4
Author
P. Perret 4
Author IdHAL : pascal-perret ORCID : https://orcid.org/0000-0002-5732-4343
1
LAPP - Laboratoire d'Annecy de Physique des Particules (9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5814 (France)
2
CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7346 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- AMU - Aix Marseille Université : UMR7346 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - France)
3
LAL - Laboratoire de l'Accélérateur Linéaire (Centre Scientifique d'Orsay B.P. 34 91898 ORSAY Cedex - France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR8607 (France)
4
LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand (Campus des Cézeaux, 24 avenue des Landais, BP 80026, 63171 Aubière Cedex - France)
- UBP - Université Blaise Pascal - Clermont-Ferrand 2 (34, avenue Carnot - BP 185 / 63006 Clermont-Ferrand cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR6533 (France)
Abstract : The data sample of Λ0b→J/ψpK− decays acquired with the LHCb detector from 7 and 8~TeV pp collisions, corresponding to an integrated luminosity of 3 fb−1, is inspected for the presence of J/ψp or J/ψK− contributions with minimal assumptions about K−p contributions. It is demonstrated at more than 9 standard deviations that Λ0b→J/ψpK− decays cannot be described with K−p contributions alone, and that J/ψp contributions play a dominant role in this incompatibility. These model-independent results support the previously obtained model-dependent evidence for P+c→J/ψp charmonium-pentaquark states in the same data sample.
Document type :
Journal articles
Complete list of metadatas
http://hal.in2p3.fr/in2p3-01304639
Contributor : Claudine Bombar <>
Submitted on : Wednesday, April 20, 2016 - 9:31:44 AM
Last modification on : Thursday, February 25, 2021 - 10:58:35 AM
Contributor : Claudine Bombar <>
Submitted on : Wednesday, April 20, 2016 - 9:31:44 AM
Last modification on : Thursday, February 25, 2021 - 10:58:35 AM
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Identifiers
- HAL Id : in2p3-01304639, version 1
- ARXIV : 1604.05708
- DOI : 10.1103/PhysRevLett.117.082002
Collections
IN2P3 | LAPP | CNRS | UNIV-SAVOIE | CPPM | UNIV-AMU | LAL | LPC-CLERMONT | PRES_CLERMONT | UGA
Citation
R. Aaij, L. Beaucourt, M. Chefdeville, D. Decamp, N. Déléage, et al.. Model-independent evidence for J/ψp contributions to Λ0b→J/ψpK− decays. Physical Review Letters, American Physical Society, 2016, 117, pp.082002 ⟨10.1103/PhysRevLett.117.082002⟩. ⟨in2p3-01304639⟩
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