Journal article

Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb plus Pb Collisions at √sNN=5.02 TeV with the ATLAS Detector


Authors listAaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; Abhayasinghe, D. K.; Abidi, S. H.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Adachi, S.; Adamczyk, L.; Adelman, J.; Adersberger, M.; Adiguzel, A.; Adye, T.; Affolder, A. A.; Afik, Y.; Agheorghiesei, C.; Aguilar-Saavedra, J. A.; Ahmadov, F.; Aielli, G.; Akatsuka, S.; Akesson, T. P. A.; Akilli, E.; Akimov, A., V; Alberghi, G. L.; Albert, J.; Albicocco, P.; Alconada Verzini, M. J.; Alderweireldt, S.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexopoulos, T.; Alhroob, M.; Ali, B.; Alimonti, G.; Alison, J.; Alkire, S. P.; Allaire, C.; Allbrooke, B. M. M.; Allen, B. W.; Allport, P. P.; Aloisio, A.; Alonso, A.; Alonso, F.; Alpigiani, C.; Alshehri, A. A.; Alstaty, M., I; Gonzalez, B. Alvarez; Alvarez Piqueras, D.; Alviggi, M. G.; Amadio, B. T.; Amaral Coutinho, Y.; Ambroz, L.; Amelung, C.; Amidei, D.; Amor Dos Santos, S. P.; Amoroso, S.; Amrouche, C. S.; Anastopoulos, C.; Ancu, L. S.; Andari, N.; Andeen, T.; Anders, C. F.; Anders, J. K.; Anderson, K. J.; Andreazza, A.; Andrei, V; Anelli, C. R.; Angelidakis, S.; Angelozzi, I; Angerami, A.; Anisenkov, A., V; Annovi, A.; Antel, C.; Anthony, M. T.; Antonelli, M.; Antrim, D. J. A.; Anulli, F.; Aoki, M.; Aparisi Pozo, J. A.; Bella, L. Aperio; Arabidze, G.; Araque, J. P.; Araujo Ferraz, V; Araujo Pereira, R.; Arce, A. T. H.; Ardell, R. E.; Arduh, F. A.; Arguin, J-F; Argyropoulos, S.; Armbruster, A. J.; Armitage, L. J.; Armstrong, A.; Arnaez, O.; Arnold, H.; Arratia, M.; Arslan, O.; Artamonov, A.; Artoni, G.; Artz, S.; Asai, S.; Asbah, N.; Ashkenazi, A.; Asimakopoulou, E. M.; Asquith, L.; Assamagan, K.; Astalos, R.; Atkin, R. J.; Atkinson, M.; Atlay, N. B.; Augsten, K.; Avolio, G.; Avramidou, R.; Ayoub, M. K.; Azuelos, G.; Baas, A. E.; Baca, M. J.; Bachacou, H.; Bachas, K.; Backes, M.; Bagnaia, P.; Bahmani, M.; Bahrasemani, H.; Bailey, A. J.; Baines, J. T.; Bajic, M.; Bakalis, C.; Baker, O. K.; Bakker, P. J.; Gupta, D. Bakshi; Baldin, E. M.; Balek, P.; Balli, F.; Balunas, W. K.; Balz, J.; Banas, E.; Bandyopadhyay, A.; Banerjee, S.; Bannoura, A. A. E.; Barak, L.; Barbe, W. M.; Barberio, E. L.; Barberis, D.; Barbero, M.; Barillari, T.; Barisits, M-S; Barkeloo, J.; Barklow, T.; Barlow, N.; Barnea, R.; Barnes, S. L.; Barnett, B. M.; Barnett, R. M.; Barnovska-Blenessy, Z.; Baroncelli, A.; Barone, G.; Barr, A. J.; Barranco Navarro, L.; Barreiro, F.; da Costa, J. Barreiro Guimaraes; Bartoldus, R.; Barton, A. E.; Bartos, P.; Basalaev, A.; Bassalat, A.; Bates, R. L.; Batista, S. J.; Batlamous, S.; Batley, J. R.; Battaglia, M.; Bauce, M.; Bauer, F.; Bauer, K. T.; Bawa, H. S.; Beacham, J. B.; Beau, T.; Beauchemin, P. H.; Bechtle, P.; Beck, H. C.; Beck, H. P.; Becker, K.; Becker, M.; Becot, C.; Beddall, A.; Beddall, A. J.; Bednyakov, V. A.; Bedognetti, M.; Bee, C. P.; Beermann, T. A.; Begalli, M.; Begel, M.; Behera, A.; Behr, J. K.; Bell, A. S.; Bella, G.; Bellagamba, L.; Bellerive, A.; Bellomo, M.; Bellos, P.; Belotskiy, K.; Belyaev, N. L.; Benary, O.; Benchekroun, D.; Bender, M.; Benekos, N.; Benhammou, Y.; Noccioli, E. Benhar; Benitez, J.; Benjamin, D. P.; Benoit, M.; Bensinger, J. R.; Bentvelsen, S.; Beresford, L.; Beretta, M.; Berge, D.; Kuutmann, E. Bergeaas; Berger, N.; Bergsten, L. J.; Beringer, J.; Berlendis, S.; Bernard, N. R.; Bernardi, G.; Bernius, C.; Bernlochner, F. U.; Berry, T.; Berta, P.; Bertella, C.; Bertoli, G.; Bertram, I. A.; Besjes, G. J.; Bylund, O. Bessidskaia; Bessner, M.; Besson, N.; Bethani, A.; Bethke, S.; Betti, A.; Bevan, A. J.; Beyer, J.; Bianchi, R. M.; Biebel, O.; Biedermann, D.; Bielski, R.; Bierwagen, K.; Biesuz, N., V; Biglietti, M.; Billoud, T. R., V; Bindi, M.; Bingul, A.; Bini, C.; Biondi, S.; Birman, M.; Bisanz, T.; Biswal, J. P.; Bittrich, C.; Bjergaard, D. M.; Black, J. E.; Black, K. M.; Blazek, T.; Bloch, I; Blocker, C.; Blue, A.; Blumenschein, U.; Blunier, Dr; Bobbink, G. J.; Bobrovnikov, V. S.; Bocchetta

Publication year2018

JournalPhysical Review Letters

Volume number121

Issue number21

ISSN0031-9007

eISSN1079-7114

DOI Linkhttps://doi.org/10.1103/PhysRevLett.121.212301

PublisherAmerican Physical Society


Abstract
This Letter presents a measurement of gamma gamma -> mu(+)mu(-)- production in Pb + Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at root s(NN) = 5.02 TeV with an integrated luminosity of 0.49 nb(-1). The azimuthal angle and transverse momentum correlations between the muons are measured as a function of collision centrality. The muon pairs are produced from gamma gamma through the interaction of the large electromagnetic fields of the nuclei. The contribution from background sources of muon pairs is removed using a template fit method. In peripheral collisions, the muons exhibit a strong back-to-back correlation consistent with previous measurements of muon pair production in ultraperipheral collisions. The angular correlations are observed to broaden significantly in central collisions. The modifications arc qualitatively consistent with rescattering of the muons while passing through the hot matter produced in the collision.



Citation Styles

Harvard Citation styleAaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D., et al. (2018) Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb plus Pb Collisions at √sNN=5.02 TeV with the ATLAS Detector , Physical Review Letters, 121(21), Article 212301. https://doi.org/10.1103/PhysRevLett.121.212301

APA Citation styleAaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D., Abidi, S., AbouZeid, O., Abraham, N., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., ...Bocchetta (2018). Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb plus Pb Collisions at √sNN=5.02 TeV with the ATLAS Detector . Physical Review Letters. 121(21), Article 212301. https://doi.org/10.1103/PhysRevLett.121.212301



Keywords


JET SUPPRESSIONJ/PSIMOMENTUM DEPENDENCEPERIPHERAL COLLISIONSPHOTONPHOTOPRODUCTIONPHYSICSPP COLLISIONSROOT-S-NN=2.76 TEV

Last updated on 2025-02-04 at 01:16