Journal article

Measurement of the Sensitivity of Two-Particle Correlations in pp Collisions to the Presence of Hard Scatterings


Authors listAad, G.; Abbott, B.; Abeling, K.; Abicht, N. J.; Abidi, S. H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Bourdarios, C. Adam; Adamczyk, L.; Addepalli, S. V.; Addison, M. J.; Adelman, J.; Adiguzel, A.; Adye, T.; Affolder, A. A.; Afik, Y.; Agaras, M. N.; Agarwala, J.; Aggarwal, A.; Agheorghiesei, C.; Ahmad, A.; Ahmadov, F.; Ahmed, W. S.; Ahuja, S.; Ai, X.; Aielli, G.; Aikot, A.; Tamlihat, M. Ait; Aitbenchikh, B.; Aizenberg, I.; Akbiyik, M.; Akesson, T. P. A.; Akimov, A. V.; Akiyama, D.; Akolkar, N. N.; Al Khoury, K.; Alberghi, G. L.; Albert, J.; Albicocco, P.; Albouy, G. L.; Alderweireldt, S.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexopoulos, T.; Alfonsi, F.; Algren, M.; Alhroob, M.; Ali, B.; Ali, H. M. J.; Ali, S.; Alibocus, S. W.; Aliev, M.; Alimonti, G.; Alkakhi, W.; Allaire, C.; Allbrooke, B. M. M.; Allen, J. F.; Allendes Flores, C. A.; Allport, P. P.; Aloisio, A.; Alonso, F.; Alpigiani, C.; Alvarez Estevez, M.; Fernandez, A. Alvarez; Cardoso, M. Alves; Alviggi, M. G.; Aly, M.; Amaral Coutinho, Y.; Ambler, A.; Amelung, C.; Amerl, M.; Ames, C. G.; Amidei, D.; Amor Dos Santos, S. P.; Amos, K. R.; Ananiev, V.; Anastopoulos, C.; Andeen, T.; Anders, J. K.; Andrean, S. Y.; Andreazza, A.; Angelidakis, S.; Angerami, A.; Anisenkov, A. V.; Annovi, A.; Antel, C.; Anthony, M. T.; Antipov, E.; Antonelli, M.; Anulli, F.; Aoki, M.; Aoki, T.; Aparisi Pozo, J. A.; Aparo, M. A.; Bella, L. Aperio; Appelt, C.; Apyan, A.; Aranzabal, N.; Val, S. J. Arbiol; Arcangeletti, C.; Arce, A. T. H.; Arena, E.; Arguin, J-F.; Argyropoulos, S.; Arling, J. -H.; Arnaez, O.; Arnold, H.; Artoni, G.; Asada, H.; Asai, K.; Asai, S.; Asbah, N. A.; Assahsah, J.; Assamagan, K.; Astalos, R.; Atashi, S.; Atkin, R. J.; Atkinson, M.; Atmani, H.; Atmasiddha, P. A.; Augsten, K.; Auricchio, S.; Auriol, A. D.; Austrup, V. A.; Avolio, G.; Axiotis, K.; Azuelos, G.; Babal, D.; Bachacou, H.; Bachas, K.; Bachiu, A.; Backman, F.; Badea, A.; Bagnaia, P.; Bahmani, M.; Bailey, A. J.; Bailey, V. R.; Baines, J. T.; Baines, L.; Baker, O. K.; Bakos, E.; Gupta, D. Bakshi; Balakrishnan, V.; Balasubramanian, R.; Baldin, E. M.; Balek, P.; Ballabene, E.; Balli, F.; Baltes, L. M.; Balunas, W. K.; Balz, J.; Banas, E.; Bandieramonte, M.; Bandyopadhyay, A.; Bansal, S.; Barak, L.; Barakat, M.; Barberio, E. L.; Barberis, D.; Barbero, M.; Barel, M. Z.; Barends, K. N.; Barillari, T.; Barisits, M-S.; Barklow, T.; Baron, P.; Moreno, D. A. Baron; Baroncelli, A.; Barone, G.; Barr, A. J.; Barr, J. D.; Navarro, L. Barranco; Barreiro, F.; da Costa, J. Barreiro Guimaraes; Barron, U.; Barros Teixeira, M. G.; Barsov, S.; Bartels, F.; Bartoldus, R.; Barton, A. E.; Bartos, P.; Basan, A.; Baselga, M.; Bassalat, A.; Basso, M. J.; Basson, C. R.; Bates, R. L.; Batlamous, S.; Batley, J. R.; Batool, B.; Battaglia, M.; Battulga, D.; Bauce, M.; Bauer, M.; Bauer, P.; Bazzano Hurrell, L. T.; Beacham, J. B.; Beau, T.; Beaucamp, J. Y.; Beauchemin, P. H.; Becherer, F.; Bechtle, P.; Beck, H. P.; Becker, K.; Beddall, A. J.; Bednyakov, V. A.; Bee, C. P.; Beemster, L. J.; Beermann, T. A.; Begalli, M.; Begel, M.; Behera, A.; Behr, J. K.; Beirer, J. F.; Beisiegel, F.; Belfkir, M.; Bella, G.; Bellagamba, L.; Bellerive, A.; Bellos, P.; Beloborodov, K.; Benchekroun, D.; Bendebba, F.; Benhammou, Y.; Benoit, M.; Bensinger, J. R.; Bentvelsen, S.; Beresford, L.; Beretta, M.; Kuutmann, E. Bergeaas; Berger, N.; Bergmann, B.; Beringer, J.; Bernardi, G.; Bernius, C.; Bernlochner, F. U.; Bernon, F.; Guardia, A. Berrocal; Berry, T.; Berta, P.; Berthold, A.; Bertram, I. A.; Bethke, S.; Betti, A.; Bevan, A. J.; Bhalla, N. K.; Bhamjee, M.; Bhatta, S.; Bhattacharya, D. S.; Bhattarai, P.; Bhopatkar, V. S.; Bi, R.; Bianchi, R. M.; Bianco, G.; Biebel, O.; Bielski, R.; Biglietti, M.; Billoud, T. R. V.; Bindi, M.; Bingul, A.; Bini, C.; Biondini, A.; Birch-sykes, C. J.; Bird, G. A.; Birman, M.; Biros, M.; Biryukov, S.; Bisanz, T.; Bisceglie, E.; Biswal, J. P.; Biswas, D

Publication year2023

JournalPhysical Review Letters

Volume number131

Issue number16

ISSN0031-9007

eISSN1079-7114

DOI Linkhttps://doi.org/10.1103/PhysRevLett.131.162301

PublisherAmerican Physical Society


Abstract
A key open question in the study of multiparticle production in high-energy pp collisions is the relationship between the "ridge"-i.e., the observed azimuthal correlations between particles in the underlying event that extend over all rapidities-and hard or semihard scattering processes. In particular, it is not known whether jets or their soft fragments are correlated with particles in the underlying event. To address this question, two-particle correlations are measured in pp collisions at collected by the ATLAS experiment at the LHC, with an integrated luminosity of 15.8 pb-1, in two different configurations. In the first case, charged particles associated with jets are excluded from the correlation analysis, while in the second case, correlations are measured between particles within jets and charged particles from the underlying event. Second-order flow coefficients, v2, are presented as a function of event multiplicity and transverse momentum. These measurements show that excluding particles associated with jets does not affect the measured correlations. Moreover, particles associated with jets do not exhibit any significant azimuthal correlations with the underlying event, ruling out hard processes contributing to the ridge. p= 13 TeV using data ffiffi s



Citation Styles

Harvard Citation styleAad, G., Abbott, B., Abeling, K., Abicht, N., Abidi, S., Aboulhorma, A., et al. (2023) Measurement of the Sensitivity of Two-Particle Correlations in pp Collisions to the Presence of Hard Scatterings, Physical Review Letters, 131(16), Article 162301. https://doi.org/10.1103/PhysRevLett.131.162301

APA Citation styleAad, G., Abbott, B., Abeling, K., Abicht, N., Abidi, S., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B., Bourdarios, C., Adamczyk, L., Addepalli, S., Addison, M., Adelman, J., Adiguzel, A., Adye, T., Affolder, A., Afik, Y., ...Biswas, D. (2023). Measurement of the Sensitivity of Two-Particle Correlations in pp Collisions to the Presence of Hard Scatterings. Physical Review Letters. 131(16), Article 162301. https://doi.org/10.1103/PhysRevLett.131.162301


Last updated on 2025-01-04 at 22:57