Observation of a new Xi(b) baryon

CMS Collaboration; Chatrchyan, Serguei; Bäni, Lukas; Bortignon, Pierluigi; Buchmann, Marco A.; Casal, Bruno; Chanon, Nicolas; Deisher, Amanda; Dissertori, Günther; Dittmar, Michael; Dünser, Marc; Eugster, Jürg; Freudenreich, Klaus; Grab, Christoph; Hits, Dmitry; Lecomte, Pierre; Lustermann, Werner; Martinez Ruiz del Arbol, Pablo; Mohr, Niklas; Moortgat, Filip; Nägeli, Christoph; Nef, Pascal; Nessi-Tedaldi, Francesca; Pandolfi, Francesco; Pape, Luc; Pauss, Felicitas; Peruzzi, Marco; Ronga, Frédéric J.; Rossini, Marco; Sala, Leonardo; Sanchez, Ann-Karin; Starodumov, Andrey; Stieger, Benjamin; Takahashi, Maiko; Tauscher, Ludwig; Thea, Alessandro; Theofilatos, Konstantinos; Treille, Daniel; Urscheler, Christina; Wallny, Rainer; Weber, Hannsjörg A.; Wehrli, Lukas; et al.

doi:10.1103/PhysRevLett.108.252002

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dc.contributor.author

CMS Collaboration

dc.contributor.author

Chatrchyan, Serguei

dc.contributor.author

Bäni, Lukas

dc.contributor.author

Bortignon, Pierluigi

dc.contributor.author

Buchmann, Marco A.

dc.contributor.author

Casal, Bruno

dc.contributor.author

Chanon, Nicolas

dc.contributor.author

Deisher, Amanda

dc.contributor.author

Dissertori, Günther

dc.contributor.author

Dittmar, Michael

dc.contributor.author

Dünser, Marc

dc.contributor.author

Eugster, Jürg

dc.contributor.author

Freudenreich, Klaus

dc.contributor.author

Grab, Christoph

dc.contributor.author

Hits, Dmitry

dc.contributor.author

Lecomte, Pierre

dc.contributor.author

Lustermann, Werner

dc.contributor.author

Martinez Ruiz del Arbol, Pablo

dc.contributor.author

Mohr, Niklas

dc.contributor.author

Moortgat, Filip

dc.contributor.author

Nägeli, Christoph

dc.contributor.author

Nef, Pascal

dc.contributor.author

Nessi-Tedaldi, Francesca

dc.contributor.author

Pandolfi, Francesco

dc.contributor.author

Pape, Luc

dc.contributor.author

Pauss, Felicitas

dc.contributor.author

Peruzzi, Marco

dc.contributor.author

Ronga, Frédéric J.

dc.contributor.author

Rossini, Marco

dc.contributor.author

Sala, Leonardo

dc.contributor.author

Sanchez, Ann-Karin

dc.contributor.author

Starodumov, Andrey

dc.contributor.author

Stieger, Benjamin

dc.contributor.author

Takahashi, Maiko

dc.contributor.author

Tauscher, Ludwig

dc.contributor.author

Thea, Alessandro

dc.contributor.author

Theofilatos, Konstantinos

dc.contributor.author

Treille, Daniel

dc.contributor.author

Urscheler, Christina

dc.contributor.author

Wallny, Rainer

dc.contributor.author

Weber, Hannsjörg A.

dc.contributor.author

Wehrli, Lukas

dc.contributor.author

et al.

dc.date.accessioned

2018-04-27T10:09:34Z

dc.date.available

2017-06-10T02:06:10Z

dc.date.available

2018-04-27T10:09:34Z

dc.date.issued

2012-06-22

dc.identifier.issn

0031-9007

dc.identifier.issn

1079-7114

dc.identifier.other

10.1103/PhysRevLett.108.252002

en_US

dc.identifier.uri

http://hdl.handle.net/20.500.11850/51288

dc.identifier.doi

10.3929/ethz-b-000051288

dc.description.abstract

The observation of a new b baryon via its strong decay into Ξ−bπ+ (plus charge conjugates) is reported. The measurement uses a data sample of pp collisions at √s=7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 5.3 fb−1. The known Ξ−b baryon is reconstructed via the decay chain Ξ−b→J/ψΞ−→μ+μ−Λ0π−, with Λ0→pπ−. A peak is observed in the distribution of the difference between the mass of the Ξ−bπ+ system and the sum of the masses of the Ξ−b and π+, with a significance exceeding 5 standard deviations. The mass difference of the peak is 14.84±0.74(stat)±0.28(syst) MeV. The new state most likely corresponds to the JP=3/2+ companion of the Ξb.

en_US

dc.format

application/pdf

en_US

dc.language.iso

en

en_US

dc.publisher

American Physical Society

en_US

dc.rights.uri

http://creativecommons.org/licenses/by/3.0/

dc.title

Observation of a new Xi(b) baryon

en_US

dc.type

Journal Article

dc.rights.license

Creative Commons Attribution 3.0 Unported

dc.date.published

2012-06-21

ethz.journal.title

Physical Review Letters

ethz.journal.volume

108

en_US

ethz.journal.issue

25

en_US

ethz.journal.abbreviated

Phys. Rev. Lett.

ethz.pages.start

252002

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ethz.size

15 p.

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publishedVersion

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000305569100004

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000003868

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published

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ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02010 - Departement Physik / Department of Physics::02532 - Institut für Teilchenphysik (IPP) / Institute for Particle Physics (IPP)::03381 - Pauss, Felicitas (emeritus)

en_US

ethz.leitzahl

ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03593 - Dissertori, Günther / Dissertori, Günther

en_US

ethz.leitzahl

ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03904 - Wallny, Rainer / Wallny, Rainer

en_US

ethz.leitzahl

ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::08803 - Grab, Christoph (Tit.Prof.)

en_US

ethz.leitzahl.certified

ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02010 - Departement Physik / Department of Physics::02532 - Institut für Teilchenphysik (IPP) / Institute for Particle Physics (IPP)::03381 - Pauss, Felicitas (emeritus)

ethz.leitzahl.certified

ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03593 - Dissertori, Günther / Dissertori, Günther

ethz.leitzahl.certified

ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03904 - Wallny, Rainer / Wallny, Rainer

ethz.leitzahl.certified

ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::08803 - Grab, Christoph (Tit.Prof.)

ethz.date.deposited

2017-06-10T02:06:28Z

ethz.source

ECIT

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imp59364f65b589a21709

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pub:83640

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yes

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ethz.availability

Open access

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ethz.rosetta.installDate

2017-07-18T17:15:05Z

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2023-02-06T15:27:43Z

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