@article{1f3f4a02648e4126ad94595a70abc84c,
title = "Transverse-momentum-dependent multiplicities of charged hadrons in muon-deuteron deep inelastic scattering",
abstract = "A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaboration at CERN. The following kinematic domain is covered by the data: photon virtuality Q2 > 1 (GeV=c)2, invariant mass of the hadronic system W > 5 GeV=c2, Bjorken scaling variable in the range 0.003 < x < 0.4, fraction of the virtual photon energy carried by the hadron in the range 0.2 < z < 0.8, and square of the hadron transverse momentum with respect to the virtual photon direction in the range 0.02 (GeV=c)2 < P2h T < 3 (GeV=c)2. The multiplicities are presented as a function of P2h T in three-dimensional bins of x, Q2, z and compared to previous semi-inclusive measurements. We explore the small-P2hT region, i.e. P2hT < 1 (GeV=c)2, where hadron transverse momenta are expected to arise from nonperturbative effects, and also the domain of larger P2hT, where contributions from higher-order perturbative QCD are expected to dominate. The multiplicities are fitted using a single-exponential function at small P2hT to study the dependence of the average transverse momentum (P2 hT) on x, Q2 and z. The power-law behavior of the multiplicities at large PhT is investigated using various functional forms. The fits describe the data reasonably well over the full measured range.",
author = "{COMPASS Collaboration} and M. Aghasyan and Alexeev, {M. G.} and Alexeev, {G. D.} and A. Amoroso and V. Andrieux and Anfimov, {N. V.} and V. Anosov and A. Antoshkin and K. Augsten and W. Augustyniak and A. Austregesilo and Azevedo, {C. D.R.} and B. Badelek and F. Balestra and M. Ball and J. Barth and R. Beck and Y. Bedfer and J. Bernhard and K. Bicker and Bielert, {E. R.} and R. Birsa and M. Bodlak and P. Bordalo and F. Bradamante and A. Bressan and M. B{\"u}chele and Burtsev, {V. E.} and L. Capozza and Chang, {W. C.} and C. Chatterjee and M. Chiosso and I. Choi and Chumakov, {A. G.} and Chung, {S. U.} and A. Cicuttin and Crespo, {M. L.} and Q. Curiel and {Dalla Torre}, S. and Dasgupta, {S. S.} and S. Dasgupta and Denisov, {O. Yu} and L. Dhara and Donskov, {S. V.} and N. Doshita and Ch Dreisbach and W. D{\"u}nnweber and Dusaev, {R. R.} and M. Dziewiecki and J. Lichtenstadt",
note = "Funding Information: We gratefully acknowledge the support of the CERN (European Organization for Nuclear Research) management and staff and the skill and effort of the technicians of our collaborating institutes. This work was made possible by the financial support of our funding agencies: MEYS (Czech Republic) Grant No.LG13031; FP7 HadronPhysics3 Grant No.283286 (European Union); CEA, P2I and ANR (France); BMBF, DFG Cluster of Excellence Origin and Structure of the Universe, DFG Research Training Group Programmes 1102 and 2044 (Germany); B. Sen Fund (India); Academy of Sciences and Humanities (Israel); INFN (Italy); MEXT and JSPS, Grants No.8002006, No.20540299, and No.18540281, Daiko and Yamada Foundations (Japan); NCN Grant No.2015/18/M/ST2/00550 (Poland); FCT COMPETE and QREN, Grants No.CERN/FP 116376/ 2010, No.123600/2011, and No.CERN/FIS-NUC/0017/ 2015 (Portugal); CERN-RFBR Grant No.12-02-91500, Presidential Grant No.NSh-999.2014.2 (Russia); MST (Taiwan); and NSF (USA). Funding Information: We gratefully acknowledge the support of the CERN (European Organization for Nuclear Research) management and staff and the skill and effort of the technicians of our collaborating institutes. This work was made possible by the financial support of our funding agencies: MEYS (Czech Republic) Grant No. LG13031; FP7 HadronPhysics3 Grant No. 283286 (European Union); CEA, P2I and ANR (France); BMBF, DFG Cluster of Excellence Origin and Structure of the Universe, DFG Research Training Group Programmes 1102 and 2044 (Germany); B. Sen Fund (India); Academy of Sciences and Humanities (Israel); INFN (Italy); MEXT and JSPS, Grants No. 8002006, No. 20540299, and No. 18540281, Daiko and Yamada Foundations (Japan); NCN Grant No. 2015/18/M/ST2/00550 (Poland); FCT COMPETE and QREN, Grants No. CERN/FP 116376/ 2010, No. 123600/2011, and No. CERN/FIS-NUC/0017/ 2015 (Portugal); CERN-RFBR Grant No. 12-02-91500, Presidential Grant No. NSh-999.2014.2 (Russia); MST (Taiwan); and NSF (USA).",
year = "2018",
month = feb,
day = "1",
doi = "10.1103/PhysRevD.97.032006",
language = "אנגלית",
volume = "97",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "3",
}