Search for new phenomena in events with a photon and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector

Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). Search for new phenomena in events with a photon and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector. Journal of High Energy Physics, 2016(6) Springer 10.1007/JHEP06(2016)059

[img]
Preview
Text
1604.01306.pdf - Accepted Version
Available under License Creative Commons: Attribution (CC-BY).

Download (610kB) | Preview
[img]
Preview
Text
10.1007_JHEP06(2016)059.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (818kB) | Preview

Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the Large Hadron Collider are reported. The data were collected in proton--proton collisions at a centre-of-mass energy of 13 TeV and correspond to an integrated luminosity of 3.2 fb⁻¹. The observed data are in agreement with the Standard Model expectations. Exclusion limits are presented in models of new phenomena including pair production of dark matter candidates or large extra spatial dimensions. In a simplified model of dark matter and an axial-vector mediator, the search excludes mediator masses of up to 710 GeV for dark matter candidate masses up to 150 GeV. In an effective theory of dark matter production, values of the suppression scale M∗ up to 570 GeV are excluded and the effect of truncation for various coupling values is reported. For the ADD large extra spatial dimension model the search places more stringent limits than earlier searches in the same event topology, excluding M D up to about 2.3 (2.8) TeV for two (six) additional spatial dimensions; the limits are reduced by 20--40% depending on the number of additional spatial dimensions when applying a truncation procedure

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Haug, Sigve; Weber, Michael and Beck, Hans Peter

Subjects:

500 Science > 530 Physics
500 Science > 510 Mathematics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Annette Krebs-Wegenast

Date Deposited:

07 Aug 2017 16:24

Last Modified:

14 Aug 2017 17:54

Publisher DOI:

10.1007/JHEP06(2016)059

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt.

BORIS DOI:

10.7892/boris.99961

URI:

https://boris.unibe.ch/id/eprint/99961

Actions (login required)

Edit item Edit item
Provide Feedback