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Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses.

Journal articles  - Journal Article
Sirunyan, AM; Tumasyan, A; Adam, W; Ambrogi, F; Asilar, E; Bergauer, T; Brandstetter, J; Dragicevic, M; Erö, J; Escalante Del Valle, A; Liko, D ...
Published in: Physical review letters
August 2018

The χ_{b1}(3P) and χ_{b2}(3P) states are observed through their ϒ(3S)γ decays, using an event sample of proton-proton collisions collected by the CMS experiment at the CERN LHC. The data were collected at a center-of-mass energy of 13 TeV and correspond to an integrated luminosity of 80.0  fb^{-1}. The ϒ(3S) mesons are identified through their dimuon decay channel, while the low-energy photons are detected after converting to e^{+}e^{-} pairs in the silicon tracker, leading to a χ_{b}(3P) mass resolution of 2.2 MeV. This is the first time that the J=1 and 2 states are well resolved and their masses individually measured: 10513.42±0.41(stat)±0.18(syst)  MeV and 10524.02±0.57(stat)±0.18(syst)  MeV; they are determined with respect to the world-average value of the ϒ(3S) mass, which has an uncertainty of 0.5 MeV. The mass splitting is measured to be 10.60±0.64(stat)±0.17(syst)  MeV.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

August 2018

Volume

121

Issue

9

Start / End Page

092002

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
 

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Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., … Vormwald, B. (2018). Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses. Physical Review Letters, 121(9), 092002. https://doi.org/10.1103/physrevlett.121.092002
Sirunyan, A. M., A. Tumasyan, W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, et al. “Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses.Physical Review Letters 121, no. 9 (August 2018): 092002. https://doi.org/10.1103/physrevlett.121.092002.
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al. Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses. Physical review letters. 2018 Aug;121(9):092002.
Sirunyan, A. M., et al. “Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses.Physical Review Letters, vol. 121, no. 9, Aug. 2018, p. 092002. Epmc, doi:10.1103/physrevlett.121.092002.
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, Brandstetter J, Dragicevic M, Erö J, Escalante Del Valle A, Flechl M, Frühwirth R, Ghete VM, Hrubec J, Jeitler M, Krammer N, Krätschmer I, Liko D, Madlener T, Mikulec I, Rad N, Rohringer H, Schieck J, Schöfbeck R, Spanring M, Spitzbart D, Taurok A, Waltenberger W, Wittmann J, Wulz C-E, Zarucki M, Chekhovsky V, Mossolov V, Suarez Gonzalez J, De Wolf EA, Di Croce D, Janssen X, Lauwers J, Pieters M, Van De Klundert M, Van Haevermaet H, Van Mechelen P, Van Remortel N, Abu Zeid S, Blekman F, D’Hondt J, De Bruyn I, De Clercq J, Deroover K, Flouris G, Lontkovskyi D, Lowette S, Marchesini I, Moortgat S, Moreels L, Python Q, Skovpen K, Tavernier S, Van Doninck W, Van Mulders P, Van Parijs I, Beghin D, Bilin B, Brun H, Clerbaux B, De Lentdecker G, Delannoy H, Dorney B, Fasanella G, Favart L, Goldouzian R, Grebenyuk A, Kalsi AK, Lenzi T, Luetic J, Postiau N, Starling E, Thomas L, Vander Velde C, Vanlaer P, Vannerom D, Wang Q, 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Marinov A, Misheva M, Rodozov M, Shopova M, Sultanov G, Dimitrov A, Litov L, Pavlov B, Petkov P, Fang W, Gao X, Yuan L, Ahmad M, Bian JG, Chen GM, Chen HS, Chen M, Chen Y, Jiang CH, Leggat D, Liao H, Liu Z, Romeo F, Shaheen SM, Spiezia A, Tao J, Wang C, Wang Z, Yazgan E, Zhang H, Zhang S, Zhao J, Ban Y, Chen G, Levin A, Li J, Li L, Li Q, Mao Y, Qian SJ, Wang D, Xu Z, Wang Y, Avila C, Cabrera A, Carrillo Montoya CA, Chaparro Sierra LF, Florez C, González Hernández CF, Segura Delgado MA, Courbon B, Godinovic N, Lelas D, Puljak I, Sculac T, Antunovic Z, Kovac M, Brigljevic V, Ferencek D, Kadija K, Mesic B, Starodumov A, Susa T, Ather MW, Attikis A, Kolosova M, Mavromanolakis G, Mousa J, Nicolaou C, Ptochos F, Razis PA, Rykaczewski H, Finger M, Ayala E, Carrera Jarrin E, Abdalla H, Abdelalim AA, Mahmoud MA, Bhowmik S, Carvalho Antunes De Oliveira A, Dewanjee RK, Ehataht K, Kadastik M, Raidal M, Veelken C, Eerola P, Kirschenmann H, Pekkanen J, Voutilainen M, Havukainen J, Heikkilä JK, Järvinen T, Karimäki V, Kinnunen R, Lampén T, Lassila-Perini K, Laurila S, Lehti S, Lindén T, Luukka P, Mäenpää T, Siikonen H, Tuominen E, Tuominiemi J, Tuuva T, Besancon M, Couderc F, Dejardin M, Denegri D, Faure JL, Ferri F, Ganjour S, Givernaud A, Gras P, Hamel de Monchenault G, Jarry P, Leloup C, Locci E, Malcles J, Negro G, Rander J, Rosowsky A, Sahin MÖ, Titov M, Abdulsalam A, Amendola C, Antropov I, Beaudette F, Busson P, Charlot C, Granier de Cassagnac R, Kucher I, Lobanov A, Martin Blanco J, Nguyen M, Ochando C, Ortona G, Pigard P, Salerno R, Sauvan JB, Sirois Y, Stahl Leiton AG, Zabi A, Zghiche A, Agram J-L, Andrea J, Bloch D, Brom J-M, Chabert EC, Cherepanov V, Collard C, Conte E, Fontaine J-C, Gelé D, Goerlach U, Jansová M, Le Bihan A-C, Tonon N, Van Hove P, Gadrat S, Beauceron S, Bernet C, Boudoul G, Chanon N, Chierici R, Contardo D, Depasse P, El Mamouni H, Fay J, Finco L, Gascon S, Gouzevitch M, Grenier G, Ille B, Lagarde F, Laktineh IB, Lattaud H, Lethuillier M, Mirabito L, Pequegnot AL, Perries S, Popov A, Sordini V, Vander Donckt M, Viret S, Toriashvili T, Tsamalaidze Z, Autermann C, Feld L, Kiesel MK, Klein K, Lipinski M, Preuten M, Rauch MP, Schomakers C, Schulz J, Teroerde M, Wittmer B, Zhukov V, Albert A, Duchardt D, Endres M, Erdmann M, Esch T, Ghosh S, Güth A, Hebbeker T, Heidemann C, Hoepfner K, Keller H, Knutzen S, Mastrolorenzo L, Merschmeyer M, Meyer A, Millet P, Mukherjee S, Pook T, Radziej M, Reithler H, Rieger M, Schmidt A, Teyssier D, Flügge G, Hlushchenko O, Kress T, Künsken A, Müller T, Nehrkorn A, Nowack A, Pistone C, Pooth O, Roy D, Sert H, Stahl A, Aldaya Martin M, Arndt T, Asawatangtrakuldee C, Babounikau I, Beernaert K, Behnke O, Behrens U, Bermúdez Martínez A, Bertsche D, Bin Anuar AA, Borras K, Botta V, Campbell A, Connor P, Contreras-Campana C, Costanza F, Danilov V, De Wit A, Defranchis MM, Diez Pardos C, Domínguez Damiani D, Eckerlin G, Eichhorn T, Elwood A, Eren E, Gallo E, Geiser A, Grados Luyando JM, Grohsjean A, Gunnellini P, Guthoff M, Haranko M, Harb A, Hauk J, Jung H, Kasemann M, Keaveney J, Kleinwort C, Knolle J, Krücker D, Lange W, Lelek A, Lenz T, Lipka K, Lohmann W, Mankel R, Melzer-Pellmann I-A, Meyer AB, Meyer M, Missiroli M, Mittag G, Mnich J, Myronenko V, Pflitsch SK, Pitzl D, Raspereza A, Savitskyi M, Saxena P, Schütze P, Schwanenberger C, Shevchenko R, Singh A, Tholen H, Turkot O, Vagnerini A, Van Onsem GP, Walsh R, Wen Y, Wichmann K, Wissing C, Zenaiev O, Aggleton R, Bein S, Benato L, Benecke A, Blobel V, Centis Vignali M, Dreyer T, Garutti E, Gonzalez D, Haller J, Hinzmann A, Karavdina A, Kasieczka G, Klanner R, Kogler R, Kovalchuk N, Kurz S, Kutzner V, Lange J, Marconi D, Multhaup J, Niedziela M, Nowatschin D, Perieanu A, Reimers A, Rieger O, Scharf C, Schleper P, Schumann S, Schwandt J, Sonneveld J, Stadie H, Steinbrück G, Stober FM, Stöver M, Troendle D, Vanhoefer A, Vormwald B. Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses. Physical review letters. 2018 Aug;121(9):092002.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

August 2018

Volume

121

Issue

9

Start / End Page

092002

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering