Deuteron Production in High-Energy Collisions

Hagedorn, Rolf

doi:10.1103/physrevlett.5.276

Cited by 46 publications

(12 citation statements)

References 3 publications

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“…These experiments dealt with forward kinematic regions, where composite nuclei could not have originated from multifragmen- tation of an excited target spectator. One such model, proposed by Dmitrii Blokhintsev [35], attributed an important role to density fluctuations in the target nucleus, while Rolf Hagedorn proposed a statistical approach in which a deuteron could be directly produced in an elementary nucleon-nucleon interaction [36]. Hagedorn subsequently employed this model to calculate the rate of antideuteron production in p-nucleus interactions [37], but the resulting prediction differed greatly from the observations of Dorfan et al [26], namely, the prediction exceeded the measured rate of antideuteron production by a factor of about 2 × 10 3 .…”

Section: Early Experimental Discoveries Of Antinuclei At Proton Accelmentioning

confidence: 99%

Antinuclei in heavy-ion collisions

et al. 2018

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We review progress in the study of antinuclei, starting from Dirac's equation and the discovery of the positron in cosmic-ray events. The development of proton accelerators led to the discovery of antiprotons, followed by the first antideuterons, demonstrating that antinucleons bind into antinuclei. With the development of heavy-ion programs at the Brookhaven AGS and CERN SPS, it was demonstrated that central collisions of heavy nuclei offer a fertile ground for research and discoveries in the area of antinuclei. In this review, we emphasize recent observations at Brookhaven's Relativistic Heavy Ion Collider and at CERN's Large Hadron Collider, namely, the antihypertriton and the antihelium-4, as well as measurements of the mass difference between light nuclei and antinuclei, and the interaction between antiprotons. Physics implications of the new observations and different production mechanisms are discussed. We also consider implications for related fields, such as hypernuclear physics and spacebased cosmic-ray experiments.

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Section: Early Experimental Discoveries Of Antinuclei At Proton Accelmentioning

confidence: 99%

Antinuclei in heavy-ion collisions

et al. 2018

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“…That is to say, most of the effect can be accounted for by the finite probability of two outgoing high-energy nucleons having small enough relative momenta to fit the deuteron wave function. 13 Whether these are produced on quasifree nucleon-nucleon collisions 6 or in a nucleonic cascade, 7 one can use the observed nucleon momentum distribution emerging from proton-beryllium (say) collisions to compute the overlap of two such particles to form an outgoing deuteron. The same considerations should then be valid for d production if we assume that the antinucleons are produced independently in 30-BeV collisions.…”

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confidence: 99%

Observation of Antideuterons

et al. 1965

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“…= ^F(ri2)I(rip+T2p) (10) will lead to an energy difference between a proton and a neutron in the state v given by the expression…”

Section: + (E A~ec Y+[t C^e A) /Iymentioning

confidence: 99%

“…In another process Hagedorn [10][11][12] suggested that statistical nucleon-nucleon interactions at high energies might yield sufficient deuterons to explain the anomaly. The reaction occurring would be of the type />+ nucleon-»d+pions+ others.…”

Section: Introductionmentioning

confidence: 97%