Search for new phenomena in dijet events using 37 fb-1 of pp collision data collected at √s =13 TeV with the ATLAS detector

Dijet events are studied in the proton--proton collision dataset recorded at s√=13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 3.5 fb−1 and 33.5 fb−1 respectively. Invariant mass and angular distributions are compared to back...

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Bibliographic Details
Published in:Physical Review D Vol. 96, № 5. P. 052004-1-052004-26
Other Authors: Aaboud, M., Abbott, B., Chelkov, G. A., Khodinov, A., Vaniachine, A., Aad, G.
Format: Article
Language:English
Subjects:
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000625041
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245 1 0 |a Search for new phenomena in dijet events using 37 fb-1 of pp collision data collected at √s =13 TeV with the ATLAS detector  |c M. Aaboud, G. Aad, B. Abbott [et.al.] 
504 |a Библиогр.: 92 назв. 
520 3 |a Dijet events are studied in the proton--proton collision dataset recorded at s√=13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 3.5 fb−1 and 33.5 fb−1 respectively. Invariant mass and angular distributions are compared to background predictions and no significant deviation is observed. For resonance searches, a new method for fitting the background component of the invariant mass distribution is employed. The dataset is then used to set upper limits at a 95% confidence level on a range of new physics scenarios. Excited quarks with masses below 6.0 TeV are excluded, and limits are set on quantum black holes, heavy W' bosons, W* bosons, and a range of masses and couplings in a Z' dark matter mediator model. Model-independent limits on signals with a Gaussian shape are also set, using a new approach allowing factorization of physics and detector effects. From the angular distributions, a scale of new physics in contact interaction models is excluded for scenarios with either constructive or destructive interference. These results represent a substantial improvement over those obtained previously with lower integrated luminosity. 
653 |a ATLAS, детектор 
653 |a Большой адронный коллайдер 
653 |a протон-протонные столкновения 
655 4 |a статьи в журналах  |9 879358 
700 1 |a Aaboud, M.  |9 159186 
700 1 |a Abbott, B.  |9 116041 
700 1 |a Chelkov, G. A.  |9 96983 
700 1 |a Khodinov, A.  |9 159187 
700 1 |a Vaniachine, A.  |9 159188 
700 1 |a Aad, G.  |9 116039 
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