Multiplicities of charged pions and charged hadrons from deep-inelastic scattering of muons off an isoscalar target

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• 作者：C. Adolphⁱ ; M. Aghasyan^z ; R. Akhunzyanov^h ; G.D. Alexeev^h ; M.G. Alexeev^ab ; A. Amoroso^ab ; ^ac ; V. Andrieux^v ; N.V. Anfimov^h ; V. Anosov^h ; K. Augsten^h ; ^t ; W. Augustyniak^ae ; A. Austregesilo^q ; C.D.R. Azevedo^b ; B. Badełek^af ; F. Balestra^ab ; ^ac ; J. Barth^e ; R. Beck^d ; Y. Bedfer^v ; J. Bernhardⁿ ; ^k ; K. Bicker^q ; ^k ; E.R. Bielert^k ; R. Birsa^z ; J. Bisplinghoff^d ; M. Bodlak^s ; M. Boer^v ; P. Bordalo^m ; ¹ ; F. Bradamante^y ; ^z ; C. Braunⁱ ; A. Bressan^y ; ^z ; M. B&uuml ; chele^j ; L. Capozza^v ; W.-C. Chang^w ; C. Chatterjee^g ; M. Chiosso^ab ; ^ac ; I. Choi^ad ; S.-U. Chung^q ; ² ; A. Cicuttin^aa ; ^z ; M.L. Crespo^aa ; ^z ; Q. Curiel^v ; S. Dalla Torre^z ; S.S. Dasgupta^g ; S. Dasgupta^y ; ^z ; O.Yu. Denisov^ac ; ^{oleg.denisov@cern.ch} ; L. Dhara^g ; S.V. Donskov^u ; N. Doshita^ah ; V. Duic^y ; W. D&uuml ; nnweber³ ; M. Dziewiecki^ag ; A. Efremov^h
• 关键词：Deep inelastic scattering ; Pion multiplicities ; Fragmentation functions
• 刊名：Physics Letters B
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：764
• 期：Complete
• 页码：1-10
• 全文大小：1478 K
• 卷排序：764

文摘

Multiplicities of charged pions and charged hadrons produced in deep-inelastic scattering were measured in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y and the relative hadron energy z  . Data were obtained by the COMPASS Collaboration using a 160GeV muon beam and an isoscalar target (6LiD). They cover the kinematic domain in the photon virtuality Q2>1(GeV/c)2, 0.004<x<0.40.004<x<0.4, 0.2<z<0.850.2<z<0.85 and 0.1<y<0.70.1<y<0.7. In addition, a leading-order pQCD analysis was performed using the pion multiplicity results to extract quark fragmentation functions.