Inclusive neutral-pion production in <Emphasis Type="Italic">d</Emphasis>C and <Emphasis Type="Italic">d</Emphasis>Cu interactions at a momentum of 4.5 GeV/. per nucleon |
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Authors: | Kh U Abraamyan M A Kozhin G L Melkumov M N Khachaturian A H Khudaverdyan |
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Institution: | (1) Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia;(2) Yerevan State University, ul. A. Manukyana 1, Yerevan, 375049, Armenia |
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Abstract: | The cross sections for inclusive neutral-pion production in the reactions d + C → π0 + x and d + Cu → π0 + x at a momentum of 4.5 GeV/c per nucleon were measured over the kinematical region specified by the inequalities Θπ≤16° and Eπ≥2 GeV (in the laboratory frame). From the ratio of the cross sections for neutral-pion generation on carbon and copper nuclei, the exponent n in the parametrization Ed3σ/d3p ~ A T n is obtained as a function of the cumulative number X in the range 0.6 ≤ X ≤ 1.8 and as a function of the square of the transverse momentum in the range 0.04 ≤ P t 2 ≤ 0.40 (GeV/c)2. The probabilities of the formation of six-quark configurations in the D, 4He, and 12C nuclei are estimated. The double-differential cross section for the reaction d + C → π0 + x is determined for the first time by using a data sample containing more than 40 000 neutral pions. |
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