Inclusive production of the $X(4140)$ state in $p \overline p $ collisions at D0

V.M. Abazov; U. Bassler; G. Bernardi; M. Besançon; D. Brown; E. Chapon; F. Couderc; F. Deliot; Y. Enari; A. Faure; S. Greder; G. Grenier; A. Grohsjean; Z. Hubacek; T. Kurca; P. Lebrun; J. Lellouch; D Li; F. Miconi; I. Ripp-Baudot; V. Shary; M. Titov; B. Tuchming; L. Zivkovic; M.-C. Cousinou; A. Duperrin; W. Geng; E. Kajfasz; S. Kermiche; E. Nagy; N. Osman; F. Badaud; Ph. Gris; M. Jaffré; J.-F. Grivaz; P. Pétroff; T. Guillemin; G. Sajot; J. Stark

Inclusive production of the $X(4140)$ state in $p \overline p $ collisions at D0

V.M. Abazov U. Bassler ¹ G. Bernardi ² M. Besançon ¹ D. Brown ² E. Chapon ³ F. Couderc ¹ F. Deliot ¹ Y. Enari ² A. Faure ⁴ S. Greder ⁴ G. Grenier ⁵ A. Grohsjean ¹ Z. Hubacek ¹ T. Kurca ⁵ P. Lebrun ⁵ J. Lellouch ² D Li ² F. Miconi ⁴ I. Ripp-Baudot ⁴ V. Shary ¹ M. Titov ¹ B. Tuchming ¹ L. Zivkovic ² M.-C. Cousinou ⁶ A. Duperrin ⁶ W. Geng ⁶ E. Kajfasz ⁶ S. Kermiche ⁶ E. Nagy ⁶ N. Osman ⁶ F. Badaud ⁷ Ph. Gris ⁷ M. Jaffré ⁸ J.-F. Grivaz ⁸ P. Pétroff ⁸ T. Guillemin ⁸ G. Sajot ⁹ J. Stark ⁹

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

2 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

3 LLR - Laboratoire Leprince-Ringuet

4 DRS-IPHC - Département Recherches Subatomiques

5 IPNL - Institut de Physique Nucléaire de Lyon

6 CPPM - Centre de Physique des Particules de Marseille

7 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

8 LAL - Laboratoire de l'Accélérateur Linéaire

9 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

Abstract : We present a study of the inclusive production of the $X(4140)$ with the decay to the $J/\psi \phi$ final state in hadronic collisions. Based on $10.4~\rm{fb^{-1}}$ of $p \overline p $ collision data collected by the D0 experiment at the Fermilab Tevatron collider, we report the first evidence for the prompt production of $X(4140)$ and find the fraction of $X(4140)$ events originating from $b$ hadrons to be $f_b=0.39\pm 0.07 {\rm \thinspace (stat)} \pm 0.10 {\rm \thinspace (syst)} $. The ratio of the non-prompt $X(4140)$ production rate to the $B_s^0$ yield in the same channel is $R=0.19 \pm 0.05 {\rm \thinspace (stat)} \pm 0.07 {\rm \thinspace (syst)}$. The values of the mass $M=4152.5 \pm 1.7 (\rm {stat}) ^{+6.2}_{-5.4} {\rm \thinspace (syst)}$~MeV and width $\Gamma=16.3 \pm 5.6 {\rm \thinspace (stat)} \pm 11.4 {\rm \thinspace (syst)}$~MeV are consistent with previous measurements. 8 pages, 2 figues

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

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http://hal.in2p3.fr/in2p3-01188999
Contributor : Sylvie Flores <>
Submitted on : Tuesday, September 1, 2015 - 7:19:11 AM
Last modification on : Tuesday, November 19, 2019 - 2:37:42 AM

Inclusive production of the $X(4140)$ state in $p \overline p $ collisions at D0

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Inclusive production of the $X(4140)$ state in $p \overline p $ collisions at D0

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