@article{495f08bd3d9742d5b41051dd6262b9e5,

title = "Production of e+e-pairs accompanied by nuclear dissociation in ultraperipheral heavy-ion collisions",

abstract = "We present data on e+e-pair production accompanied by nuclear breakup in ultraperipheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at small impact parameters, where higher-order diagrams for pair production should be enhanced. We compare the data with two calculations: one based on the equivalent photon approximation, and the other using lowest-order quantum electrodynamics (QED). The data distributions agree with both calculations, except that the pair transverse momentum spectrum disagrees with the equivalent photon approach. We set limits on higher-order contributions to the cross section.",

author = "{STAR Collaboration} and J. Adams and Aggarwal, {M. M.} and Z. Ahammed and J. Amonett and Anderson, {B. D.} and D. Arkhipkin and Averichev, {G. S.} and Y. Bai and J. Balewski and O. Barannikova and Barnby, {L. S.} and J. Baudot and S. Bekele and Belaga, {V. V.} and R. Bellwied and J. Berger and Bezverkhny, {B. I.} and S. Bharadwaj and Bhatia, {V. S.} and H. Bichsel and A. Billmeier and Bland, {L. C.} and Blyth, {C. O.} and Bonner, {B. E.} and M. Botje and A. Boucham and A. Brandin and A. Bravar and M. Bystersky and Cadman, {R. V.} and Cai, {X. Z.} and H. Caines and {Calder{\'o}n De La Barca S{\'a}nchez}, M. and J. Carroll and J. Castillo and D. Cebra and Z. Chajecki and P. Chaloupka and S. Chattopdhyay and Chen, {H. F.} and Y. Chen and J. Cheng and M. Cherney and A. Chikanian and W. Christie and Coffin, {J. P.} and Cormier, {T. M.} and Cramer, {J. G.} and Crawford, {H. J.} and D. Das",

year = "2004",

month = sep,

day = "1",

doi = "10.1103/PhysRevC.70.031902",

language = "English (US)",

volume = "70",

pages = "319021--319026",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

}