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arXiv · 1305.7317

Hadron Transverse Momentum Distributions in Muon Deep Inelastic Scattering at 160 GeV/$c$

C. Adolph·M. G. Alekseev·V. Yu. Alexakhin·Yu. Alexandrov·G. D. Alexeev·A. Amoroso·V. Andrieux·A. Austregesilo·B. Badelek·F. Balestra·J. Barth·G. Baum·Y. Bedfer·A. Berlin·J. Bernhard·R. Bertini·K. Bicker·J. Bieling·R. Birsa·J. Bisplinghoff·M. Boer·P. Bordalo·F. Bradamante·C. Braun·A. Bravar·A. Bressan·M. Buechele·E. Burtin·L. Capozza·M. Chiosso·S. U. Chung·A. Cicuttin·M. L. Crespo·S. Dalla Torre·S. S. Dasgupta·S. Dasgupta·O. Yu. Denisov·S. V. Donskov·N. Doshita·V. Duic·W. Duennweber·M. Dziewiecki·A. Efremov·C. Elia·P. D. Eversheim·W. Eyrich·M. Faessler·A. Ferrero·A. Filin·M. Finger·M. Finger jr.·H. Fischer·C. Franco·N. du Fresne von Hohenesche·J. M. Friedrich·V. Frolov·R. Garfagnini·F. Gautheron·O. P. Gavrichtchouk·S. Gerassimov·R. Geyer·M. Giorgi·I. Gnesi·B. Gobbo·S. Goertz·S. Grabmueller·A. Grasso·B. Grube·R. Gushterski·A. Guskov·T. Guthoerl·F. Haas·D. von Harrach·F. H. Heinsius·F. Herrmann·C. Hess·F. Hinterberger·Ch. Hoeppner·N. Horikawa·N. d'Hose·S. Huber·S. Ishimoto·Yu. Ivanshin·T. Iwata·R. Jahn·V. Jary·P. Jasinski·R. Joosten·E. Kabuss·D. Kang·B. Ketzer·G. V. Khaustov·Yu. A. Khokhlov·Yu. Kisselev·F. Klein·K. Klimaszewski·J. H. Koivuniemi·V. N. Kolosov·K. Kondo·K. Koenigsmann
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Abstract

Multiplicities of charged hadrons produced in deep inelastic muon scattering off a $^6$LiD target have been measured as a function of the DIS variables $x_{Bj}$, $Q^2$, $W^2$ and the final state hadron variables $p_T$ and $z$. The $p_T^2$ distributions are fitted with a single exponential function at low values of $p_T^2$ to determine the dependence of $\langle p_T^2 \rangle$ on $x_{Bj}$, $Q^2$, $W^2$ and $z$. The $z$-dependence of $\langle p_T^2 \rangle$ is shown to be a potential tool to extract the average intrinsic transverse momentum squared of partons, $\langle k_{\perp}^2 \rangle$, as a function of $x_{Bj}$ and $Q^2$ in a leading order QCD parton model.

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C. Adolph, M. G. Alekseev, V. Yu. Alexakhin, Yu. Alexandrov, G. D. Alexeev, A. Amoroso, V. Andrieux, A. Austregesilo, B. Badelek, F. Balestra, J. Barth, G. Baum, Y. Bedfer, A. Berlin, J. Bernhard, R. Bertini, K. Bicker, J. Bieling, R. Birsa, J. Bisplinghoff, M. Boer, P. Bordalo, F. Bradamante, C. Braun, A. Bravar, A. Bressan, M. Buechele, E. Burtin, L. Capozza, M. Chiosso, S. U. Chung, A. Cicuttin, M. L. Crespo, S. Dalla Torre, S. S. Dasgupta, S. Dasgupta, O. Yu. Denisov, S. V. Donskov, N. Doshita, V. Duic, W. Duennweber, M. Dziewiecki, A. Efremov, C. Elia, P. D. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, A. Filin, M. Finger, M. Finger jr., H. Fischer, C. Franco, N. du Fresne von Hohenesche, J. M. Friedrich, V. Frolov, R. Garfagnini, F. Gautheron, O. P. Gavrichtchouk, S. Gerassimov, R. Geyer, M. Giorgi, I. Gnesi, B. Gobbo, S. Goertz, S. Grabmueller, A. Grasso, B. Grube, R. Gushterski, A. Guskov, T. Guthoerl, F. Haas, D. von Harrach, F. H. Heinsius, F. Herrmann, C. Hess, F. Hinterberger, Ch. Hoeppner, N. Horikawa, N. d'Hose, S. Huber, S. Ishimoto, Yu. Ivanshin, T. Iwata, R. Jahn, V. Jary, P. Jasinski, R. Joosten, E. Kabuss, D. Kang, B. Ketzer, G. V. Khaustov, Yu. A. Khokhlov, Yu. Kisselev, F. Klein, K. Klimaszewski, J. H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Koenigsmann. 2013-05-31. Hadron Transverse Momentum Distributions in Muon Deep Inelastic Scattering at 160 GeV/$c$. https://doi.org/10.1140/epjc%2Fs10052-013-2531-6

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