Anomalies in the Nuclear Dissociation Cross Sections of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>208</mn></mrow></msup></mrow><mi>Pb</mi></math></span> at 33 TeV

S. Datz; J. R. Beene; P. Grafström; H. Knudsen; H. F. Krause; R. H. Schuch; C. R. Vane

doi:10.1103/PhysRevLett.79.3355

Anomalies in the Nuclear Dissociation Cross Sections of $^{208} Pb$ at 33 TeV

S. Datz, J. R. Beene, P. Grafström, H. Knudsen, H. F. Krause, R. H. Schuch, and C. R. Vane

Phys. Rev. Lett. 79, 3355 – Published 3 November 1997

Abstract

We have measured total nuclear disintegration cross sections for $^{208} Pb$ ions at 33 TeV $(160 - GeV A)$ colliding with C, Si, Cu, Sn, and Pb. Using well established theory, we calculate the nuclear electromagnetic, electron electromagnetic, and the hadronic contributions and find that their sum underestimates the measured cross sections. An additive correction term linear in target $Z_{T}$ (i.e., ${120 Z}_{T} mb$ ) is necessary to bring agreement between theory and experiment. The source of this additional term is unknown.

Received 24 February 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.3355

Authors & Affiliations

S. Datz¹, J. R. Beene¹, P. Grafström², H. Knudsen³, H. F. Krause¹, R. H. Schuch⁴, and C. R. Vane¹

¹Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6377
²CERN, SPS/SL Division, Batiment 866, CH-1211, Geneva 23, Switzerland
³Institute of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark
⁴Atomic Physics Department, Stockholm University, Frescativägen 24, S-104 05, Stockholm, Sweden