@article{3167204,
    title = "Measurement of charm and beauty production at central rapidity versus
charged-particle multiplicity in proton-proton collisions at root s=7
TeV",
    author = "Adam, J. and Adamova, D. and Aggarwal, M. M. and Rinella, G. Aglieri and and Agnello, M. and Agrawal, N. and Ahammed, Z. and Ahmed, I. and Ahn, S. U. and and Aimo, I. and Aiola, S. and Ajaz, M. and Akindinov, A. and Alam, S. and N. and Aleksandrov, D. and Alessandro, B. and Alexandre, D. and Alfaro and Molina, R. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and and Altinpinar, S. and Altsybeev, I. and Alves Garcia Prado, C. and Andrei, and C. and Andronic, A. and Anguelov, V. and Anielski, J. and Anticic, T. and and Antinori, F. and Antonioli, P. and Aphecetche, L. and Appelshaeuser, and H. and Arcelli, S. and Armesto, N. and Arnaldi, R. and Aronsson, T. and and Arsene, I. C. and Arslandok, M. and Augustinus, A. and Averbeck, R. and and Azmi, M. D. and Bach, M. and Badala, A. and Baek, Y. W. and Bagnasco, S. and and Bailhache, R. and Bala, R. and Baldisseri, A. and Ball, M. and and Pedrosa, F. Baltasar Dos Santos and Baral, R. C. and Barbano, A. M. and and Barbera, R. and Barile, F. and Barnafoeldi, G. G. and Barnby, L. S. and and Barret, V. and Bartalini, P. and Bartke, J. and Bartsch, E. and Basile, and M. and Bastid, N. and Basu, S. and Bathen, B. and Batigne, G. and and Camejo, A. Batista and Batyunya, B. and Batzing, P. C. and Bearden, I. and G. and Beck, H. and Bedda, C. and Behera, N. K. and Belikov, I. and and Bellini, F. and Bello Martinez, H. and Bellwied, R. and Belmont, R. and and Belmont-Moreno, E. and Belyaev, V. and Bencedi, G. and Beole, S. and and Berceanu, I. and Bercuci, A. and Berdnikov, Y. and Berenyi, D. and and Bertens, R. A. and Berzano, D. and Betev, L. and Bhasin, A. and Bhat, I. and R. and Bhati, A. K. and Bhattacharjee, B. and Bhom, J. and Bianchi, L. and and Bianchi, N. and Bianchin, C. and Bielcik, J. and Bielcikova, J. and and Bilandzic, A. and Biswas, S. and Bjelogrlic, S. and Blanco, F. and Blau, and D. and Blume, C. and Bock, F. and Bogdanov, A. and Boggild, H. and and Boldizsar, L. and Bombara, M. and Book, J. and Borel, H. and Borissov, and A. and Borri, M. and Bossu, F. and Botje, M. and Botta, E. and Boettger, and S. and Braun-Munzinger, P. and Bregant, M. and Breitner, T. and Broker, and T. A. and Browning, T. A. and Broz, M. and Brucken, E. J. and Bruna, E. and and Bruno, G. E. and Budnikov, D. and Buesching, H. and Bufalino, S. and and Buncic, P. and Busch, O. and Buthelezi, Z. and Buxton, J. T. and and Caffarri, D. and Cai, X. and Caines, H. and Diaz, L. Calero and Caliva, and A. and Calvo Villar, E. and Camerini, P. and Carena, F. and Carena, W. and and Castellanos, J. Castillo and Castro, A. J. and Casula, E. A. 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A. and Volpe, G. and von Haller, B. and and Vorobyev, I. and Vranic, D. and Vrlakova, J. and Vulpescu, B. and and Vyushin, A. and Wagner, B. and Wagner, J. and Wang, H. and Wang, M. and and Wang, Y. and Watanabe, D. and Weber, M. and Weber, S. G. and Wessels, J. and P. and Westerhoff, U. and Wiechula, J. and Wikne, J. and Wilde, M. and and Wilk, G. and Wilkinson, J. and Williams, M. C. S. and Windelband, B. and and Winn, M. and Yaldo, C. G. and Yamaguchi, Y. and Yang, H. and Yang, P. and and Yano, S. and Yasnopolskiy, S. and Yin, Z. and Yokoyama, H. and Yoo, and I. -K. and Yurchenko, V. and Yushmanov, I. and Zaborowska, A. and and Zaccolo, V. and Zaman, A. and Zampolli, C. and Zanoli, H. J. C. and and Zaporozhets, S. and Zarochentsev, A. and Zavada, P. and Zaviyalov, N. and and Zbroszczyk, H. and Zgura, I. S. and Zhalov, M. and Zhang, H. and and Zhang, X. and Zhang, Y. and Zhao, C. and Zhigareva, N. and Zhou, D. and and Zhou, Y. and Zhou, Z. and Zhu, H. and Zhu, J. and Zhu, X. and Zichichi, and A. and Zimmermann, A. and Zimmermann, M. B. and Zinovjev, G. and Zyzak, and M. and ALICE Collaboration",
    journal = "Journal of High Energy Physics",
    year = "2015",
    number = "9",
    publisher = "Springer-Verlag",
    issn = "1126-6708, 1029-8479",
    doi = "10.1007/JHEP09(2015)148",
    keywords = "Hadron-Hadron Scattering",
    abstract = "Prompt D meson and non-prompt J/psi yields are studied as a function of
the multiplicity of charged particles produced in inelastic
proton-proton collisions at a centre-of-mass energy of root s = 7 TeV.
The results are reported as a ratio between yields in a given
multiplicity interval normalised to the multiplicity-integrated ones
(relative yields). They are shown as a function of the multiplicity of
charged particles normalised to the average value for inelastic
collisions (relative charged-particle multiplicity). D-0, D+ and D*+
mesons are measured in five p(T) intervals from 1 GeV/c to 20 GeV/c and
for |y| < 0.5 via their hadronic decays. The D-meson relative yield is
found to increase with increasing charged-particle multiplicity. For
events with multiplicity six times higher than the average multiplicity
of inelastic collisions, a yield enhancement of a factor about 15
relative to the multiplicity-integrated yield in inelastic collisions is
observed. The yield enhancement is independent of transverse momentum
within the uncertainties of the measurement. The D-0-meson relative
yield is also measured as a function of the relative multiplicity at
forward pseudo-rapidity. The non-prompt J/psi, i.e. the B hadron,
contribution to the inclusive J/psi production is measured in the
di-electron decay channel at central rapidity. It is evaluated for p(T)
> 1.3 GeV/c and |y| < 0.9, and extrapolated to p(T) > 0. The fraction of
non-prompt J/psi the inclusive J/psi yields shows no dependence on the
charged-particle multiplicity at central rapidity. Charm and beauty
hadron relative yields exhibit a similar increase with increasing
charged-particle multiplicity. The measurements are compared to PYTHIA
8, EPOS 3 and percolation calculations."
}