@article{9677aca0e27e4ec7a4865235fad095bc,
title = "Measurement of exclusive pion pair production in proton–proton collisions at √s=7TeV with the ATLAS detector",
abstract = "The exclusive production of pion pairs in the process pp→ ppπ+π- has been measured at s=7TeV with the ATLAS detector at the LHC, using 80μb-1 of low-luminosity data. The pion pairs were detected in the ATLAS central detector while outgoing protons were measured in the forward ATLAS ALFA detector system. This represents the first use of proton tagging to measure an exclusive hadronic final state at the LHC. A cross-section measurement is performed in two kinematic regions defined by the proton momenta, the pion rapidities and transverse momenta, and the pion–pion invariant mass. Cross-section values of 4.8±1.0(stat)-0.2+0.3(syst)μb and 9±6(stat)-2+2(syst)μb are obtained in the two regions; they are compared with theoretical models and provide a demonstration of the feasibility of measurements of this type.",
author = "G. Aad and B. Abbott and Abbott, {D. C.} and K. Abeling and Abidi, {S. H.} and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Hoffman, {A. C.Abusleme} and Acharya, {B. S.} and B. Achkar and Bourdarios, {C. Adam} and L. Adamczyk and L. Adamek and Addepalli, {S. V.} and J. Adelman and A. Adiguzel and S. Adorni and T. Adye and Affolder, {A. A.} and Y. Afik and Agaras, {M. N.} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and A. Ahmad and F. Ahmadov and Ahmed, {W. S.} and S. Ahuja and X. Ai and G. Aielli and C. Appelt and L. Barak and U. Barron and G. Bella and Y. Benhammou and B. Chen and H. Cohen and E. Etzion and G. Koren and O. Kuprash and Lutz, {M. S.} and R. Nayak and Dominguez, {L. Pascual} and D. Reikher and A. Soffer and Tamir, {N. M.} and D. Vannicola and I. Aizenberg and M. Akbiyik and {\AA}kesson, {T. P.A.} and Akimov, {A. V.} and Khoury, {K. Al} and Alberghi, {G. L.} and J. Albert and P. Albicocco and S. Alderweireldt and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and S. Istin and E. Kajomovitz and Y. Rozen and S. Tarem and D. Melini",
note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",
year = "2023",
month = jul,
doi = "https://doi.org/10.1140/epjc/s10052-023-11700-x",
language = "الإنجليزيّة",
volume = "83",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer Nature",
number = "7",
}