| Title: |
Observation of double parton scattering in same-sign W boson pair production in pp collisions at s=13 TeV with the ATLAS detector |
| Authors: |
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, NJ; Abidi, SH; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abulaiti, Y; Acharya, BS; Ackermann, A; Bourdarios, CA; Adamczyk, L; Addepalli, SV; Addison, MJ; Adelman, J; Adiguzel, A; Adye, T; Affolder, AA; Afik, Y; Agaras, MN; Aggarwal, A; Agheorghiesei, C; Ahmadov, F; Ahuja, S; Ai, X; Aielli, G; Aikot, A; Tamlihat, MA; Aitbenchikh, B; Akbiyik, M; Åkesson, TPA; Akimov, AV; Akiyama, D; Akolkar, NN; Aktas, S; Alberghi, GL; Albert, J; Alberti, U; Albicocco, P; Albouy, GL; Alderweireldt, S; Alegria, ZL; Aleksa, M; Aleksandrov, IN; Alexa, C; Alexopoulos, T; Alfonsi, F; Algren, M; Alhroob, M; Ali, B; Ali, HMJ; Ali, S; Alibocus, SW; Aliev, M; Alimonti, G; Alkakhi, W; Allaire, C; Allbrooke, BMM; Allen, JS; Allen, JF; Allport, PP; Aloisio, A; Alonso, F; Alpigiani, C; Alsolami, ZMK; Fernandez, AA; Alves Cardoso, M; Alviggi, MG; Aly, M; Coutinho, YA; Ambler, A; Amelung, C; Amerl, M; Ames, CG; Amezza, T; Amidei, D; Amini, B; Amirie, K; Amirkhanov, A; Amor Dos Santos, SP; Amos, KR; Amperiadou, D; An, S; Anastopoulos, C; Andeen, T; Anders, JK; Anderson, AC; Andreazza, A; Angelidakis, S; Angerami, A; Anisenkov, AV; Annovi, A; Antel, C; Antipov, E; Antonelli, M; Anulli, F; Aoki, M |
| Publisher Information: |
Elsevier BV |
| Publication Year: |
2025 |
| Collection: |
The University of Melbourne: Digital Repository |
| Description: |
This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. The data set used corresponds to an integrated luminosity of 140 fb − 1 of proton–proton collisions at a center-of-mass energy of 13 TeV, collected during Run 2 of the Large Hadron Collider. The study is performed in final states including two same-charge leptons, electron or muon, missing transverse momentum, and up to one jet. An excess of events is observed over the expected background contributions with a significance of 8.8 standard deviations. The measured fiducial cross section times leptonic branching fraction is 4.59 ± 0.64 fb. The measurement corresponds to a double parton scattering effective cross section of 10.6 ± 1.8 mb. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
0370-2693 |
| Relation: |
https://hdl.handle.net/11343/363524 |
| Availability: |
https://hdl.handle.net/11343/363524 |
| Rights: |
https://creativecommons.org/licenses/by/4.0 ; CC-BY |
| Accession Number: |
edsbas.B59EAD2 |
| Database: |
BASE |