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Aaij, R, Beteta, C Abellan, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S et al (show 918 more authors) , Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Cartelle, P Alvarez, Alves, AA Jr, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baker, S, Rodriguez, P Baladron, Balagura, V, Baldini, W, Baptista Leite, J, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Boelhauve, JA, Billoir, P, Bishop, FCR, Bizzeti, A, Bjorn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bouchiba, SA, Bowcock, TJV ORCID: 0000-0002-3505-6915, Boyer, A, Bozzi, C, Bradley, MJ, Braun, S, Brea Rodriguez, A, Brodski, M, Brodzicka, J, Brossa Gonzalo, A, Brundu, D, Buchanan, E, Buonaura, A, Burr, C, Bursche, A, Butkevich, A, Butter, JS, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Diaz, L Calero, Cali, S, Calladine, R, Calvi, M, Gomez, M Calvo, Magalhaes, P Camargo, Camboni, A, Campana, P, Perez, DH Campora, Quezada, AF Campoverde, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Akiba, K Carvalho, Casais Vidal, A, Casse, G ORCID: 0000-0002-8516-237X, Cattaneo, M, Cavallero, G, Celani, S, Cenci, R, Cerasoli, J, Chadwick, AJ, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Chefdeville, M, Chekalina, V, Chen, C, Chen, S, Chernov, A, Chitic, S-G, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, MF, Cid Vidal, X, Ciezarek, G, Cindolo, F, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Cobbledick, JL, Coco, V, Coelho, JAB, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Contu, A, Cooke, N, Coombs, G, Coquereau, S, Corti, G, Sobral, CM Costa, Couturier, B, Craik, DC, Crkovska, J, Crocombe, A, Torres, M Cruz, Currie, R, Da Silva, CL, Dall'Occo, E, Dalseno, J, D'Ambrosio, C, Danilina, A, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, P, de Vries, JA, Dean, CT, Dean, W, Decamp, D, Del Buono, L, Delaney, B, Dembinski, H-P, Dendek, A, Denysenko, V, Derkach, D, Deschamps, O, Desse, F, Dettori, F, Dey, B, Di Canto, A, Di Nezza, P, Didenko, S, Dijkstra, H, Dobishuk, V, Donohoe, AM, Dordei, F, Dorigo, M, dos Reis, AC, Douglas, L, Dovbnya, A, Dreimanis, K, Dudek, MW, Dufour, L, Durante, P, Durham, JM, Dutta, D, Dziewiecki, M, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falabella, A, Fan, J, Fan, Y, Fang, B, Farley, N, Farry, S ORCID: 0000-0001-5119-9740, Fazzini, D, Fedin, P, Feo, M, Fernandez Declara, P, Fernandez Prieto, A, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Sole, S Ferreres, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiorini, M, Firlej, M, Fischer, KM, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Lima, V Franco ORCID: 0000-0002-3761-209X, Sevilla, M Franco, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, DA, Fu, J, Fuehring, Q, Funk, W, Gabriel, E, Gaintseva, T, Torreira, A Gallas, Galli, D, Gallorini, S, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garcia Martin, LM, Garcia Plana, B, Garcia Rosales, FA, Garrido, L, Gascon, D, Gaspar, C, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Ghez, Ph, Gibson, V, Gioventu, A, Gironell, P Gironella, Giubega, L, Giugliano, C, Gizdov, K, Gligorov, VV, Gobel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gorbounov, P, Gorelov, IV, Gotti, C, Govorkova, E, Grabowski, JP, Diaz, R Graciani, Grammatico, T, Cardoso, LA Granado, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Greim, R, Griffith, P, Grillo, L, Gruber, L, Cazon, BR Gruberg, Gu, C, Guarise, M, Guenther, PA, Gushchin, E, Guth, A, Guz, Yu, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haines, SC, Hamilton, PM, Han, Q, Han, X, Hancock, TH, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hart, R, Hasse, C, Hatch, M, He, J, Hecker, M, Heijhoff, K, Heinicke, K, Hennequin, AM, Hennessy, K ORCID: 0000-0002-1529-8087, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hopchev, PH, Hu, J, Hu, J, Hu, W, Huang, W, Hulsbergen, W, Humair, T, Hunter, RJ, Hushchyn, M, Hutchcroft, D ORCID: 0000-0002-4174-6509, Hynds, D, Ibis, P, Idzik, M, Ilten, P, Inglessi, A, Ivshin, K, Jacobsson, R, Jakobsen, S, Jans, E, Jashal, BK, Jawahery, A, Jevtic, V, Jiang, F, John, M, Johnson, D, Jones, CR, Jost, B, Jurik, N, Kandybei, S, Karacson, M, Kariuki, JM, Kazeev, N, Kecke, M, Keizer, F, Kelsey, M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kim, KE, Kirn, T, Kirsebom, VS, Klaver, S, Klimaszewski, K, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kravchuk, L, Krawczyk, RD, Kreps, M, Kress, F, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuindersma, HS, Kunde, GJ, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lancierini, D, Lane, JJ, Lanfranchi, G, Langenbruch, C, Lantwin, O, Latham, T, Lazzari, F, Le Gac, R, Lee, SH, Lefevre, R, Leflat, A, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, L, Li, X, Li, Y, Li, Z, Liang, X, Lin, T, Lindner, R, Lisovskyi, V, Liu, G, Liu, X, Loh, D, Loi, A, Castro, J Lomba, Longstaff, I, Lopes, JH, Loustau, G, Lovell, GH, Lu, Y, Lucchesi, D, Martinez, M Lucio, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Ma, L, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Mohan, LR Madhan, Maev, O, Maevskiy, A, Maisuzenko, D, Majewski, MW, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Escalero, R Manera, Manuzzi, D, Marangotto, D, Maratas, J, Marchand, JF, Marconi, U, Mariani, S, Benito, C Marin, Marinangeli, M, Marino, P, Marks, J, Marshall, J, Martellotti, G, Martinazzoli, L, Martinelli, M, Santos, D Martinez, Vidal, F Martinez, Massafferri, A, Materok, M, Matev, R, Mathad, A, Mathe, Z, Matiunin, V, Matteuzzi, C, Mattioli, KR, Mauri, A, Maurice, E, McCann, M, Mcconnell, L, McNab, A, McNulty, R, Mead, JV ORCID: 0000-0003-0875-2533, Meadows, B, Meaux, C, Meier, G, Meinert, N, 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Romero, Roth, JD, Rotondo, M, Rudolph, MS, Ruf, T, Vidal, J Ruiz, Ryzhikov, A, Ryzka, J, Silva, JJ Saborido, Sagidova, N, Sahoo, N, Saitta, B, Gras, C Sanchez, Mayordomo, C Sanchez, Santacesaria, R, Rios, C Santamarina, Santimaria, M, Santovetti, E, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Smead, LG Scantlebury, Schael, S, Schellenberg, M, Schiller, M, Schindler, H, Schmelling, M, Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schreiner, HF, Schubiger, M, Schulte, S, Schune, MH, Schwemmer, R, Sciascia, B, Sciubba, A, Sellam, S, Semennikov, A, Sergi, A, Serra, N, Serrano, J, Sestini, L, Seuthe, A, Seyfert, P, Shangase, DM, Shapkin, M, Shchutska, L, Shears, T ORCID: 0000-0002-2653-1366, Shekhtman, L, Shevchenko, V, Shields, EB, Shmanin, E, Shupperd, JD, Siddi, BG, Coutinho, R Silva, de Oliveira, L Silva, Simi, G, Simone, S, Skiba, I, Skidmore, N, Skwarnicki, T, Slater, MW, Smeaton, JG, Smetkina, A, Smith, E, Smith, IT, Smith, M, Snoch, 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(2020)
Study of the lineshape of the χ<sub>c1</sub> (3872) state.
PHYSICAL REVIEW D, 102 (9).
092005-.
Abstract
A study of the lineshape of the $\chi_{c1}(3872)$ state is made using a data
sample corresponding to an integrated luminosity of $3\,$fb$^{-1}$ collected in
$pp$ collisions at centre-of-mass energies of 7 and 8\,TeV with the LHCb
detector. Candidate $\chi_{c1}(3872)$ and $\psi(2S)$ mesons from b-hadron
decays are selected in the $ J/\psi \pi^+ \pi^-$ decay mode. Describing the
{\mbox{lineshape}} with a Breit--Wigner function, the mass splitting between
the $\chi_{c1}(3872)$ and $\psi(2S)$ states, $\Delta m$, and the width of the
$\chi_{c1}(3872)$ state, $\Gamma_{\mathrm{BW}}$, are determined to be
\begin{eqnarray*} \Delta m & = & 185.598 \pm 0.067 \pm 0.068\, \mathrm{MeV} \,,
\\ \Gamma_{\mathrm{BW}} & = & \phantom{00}1.39\phantom{0} \pm 0.24\phantom{0}
\pm 0.10\phantom{0} \mathrm{MeV} \,, \end{eqnarray*} where the first
uncertainty is statistical and the second systematic. Using a Flatt\'e-inspired
model, the mode and full width at half maximum of the lineshape are determined
to be \begin{eqnarray*} \mathrm{mode} & =
3871.69^{\,+\,0.00\,+\,0.05}_{\,-\,0.04\,-\,0.13} &\mathrm{MeV} \\
\mathrm{FWHM} & = 0.22^{\,+\,0.07\,+\,0.11}_{\,-\,0.06\,-\,0.13}& \mathrm{MeV}
. \end{eqnarray*} An investigation of the analytic structure of the Flatt\'e
amplitude reveals a pole structure, which is compatible with a quasi-bound
$D^0\bar{D}^{*0}$ state but a quasi-virtual state is still allowed at the level
of $2$ standard deviations.
Item Type: |
Article
|
Additional Information: |
All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-008.html (LHCb
public pages) |
Uncontrolled Keywords: |
hep-ex, hep-ex |
Depositing User: |
Symplectic Admin
|
Date Deposited: |
10 Dec 2020 16:21 |
Last Modified: |
12 Oct 2023 03:47 |
DOI: |
10.1103/PhysRevD.102.092005 |
Related URLs: |
|
URI: |
https://livrepository.liverpool.ac.uk/id/eprint/3109858 |