Journal Article Study of ordered hadron chains with the ATLAS detector

ATLAS Collaboration  ,  Hara, K.  ,  Kim, S.H.  ,  Okawa, H.  ,  Sato, K.  ,  Ukegawa, F.

96 ( 9 )  , p.092008 , 2017-11 , American Physical Society
ISSN:2470-0010
NCID:AA00773624
Description
The analysis of the momentum difference between charged hadrons in high-energy proton-proton collisions is performed in order to study coherent particle production. The observed correlation pattern agrees with a model of a helical QCD string fragmenting into a chain of ground-state hadrons. A threshold momentum difference in the production of adjacent pairs of charged hadrons is observed, in agreement with model predictions. The presence of low-mass hadron chains also explains the emergence of charge-combination-dependent two-particle correlations commonly attributed to Bose-Einstein interference. The data sample consists of 190  μb−1 of minimum-bias events collected with proton-proton collisions at a center-of-mass energy √s=7  TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.
Full-Text

https://tsukuba.repo.nii.ac.jp/?action=repository_action_common_download&item_id=44500&item_no=1&attribute_id=17&file_no=1

Number of accesses :  

Other information