Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 25, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.252302
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Funding
- Division Of Physics
- Direct For Mathematical & Physical Scien [0968903] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [0969966] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [20224014, 23340074] Funding Source: KAKEN
- Science and Technology Facilities Council [ST/J000140/1, ST/J000108/1] Funding Source: researchfish
- STFC [ST/J000108/1, ST/J000140/1] Funding Source: UKRI
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The first measurement of neutron emission in electromagnetic dissociation of Pb-208 nuclei at the LHC is presented. The measurement is performed using the neutron zero degree calorimeters of the ALICE experiment, which detect neutral particles close to beam rapidity. The measured cross sections of single and mutual electromagnetic dissociation of Pb nuclei at root s(NN) = 2.76 TeV with neutron emission are sigma(singleEMD) = 187.4 +/- 0.2(stat)(-11.2)(+13.2) (syst) b and sigma(mutualEMD) = 5. 7 +/- 0.1(stat) +/- 0.4(syst) b, respectively. The experimental results are compared to the predictions from a relativistic electromagnetic dissociation model. DOI: 10.1103/PhysRevLett.109.252302
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