A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector
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, Journal Article
Aaboud, M; Aad, G; Abbott, B; Abdinov, O; Abeloos, B; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y ...
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
April 10, 2018
A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb−1 of proton–proton collision data at s=13TeV collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle X is assumed to decay to a pair of light quarks, and the fully hadronic final state XH→qq¯′bb¯ is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the XH→qq¯′bb¯ resonance.
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Published In
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOI
ISSN
0370-2693
Publication Date
April 10, 2018
Volume
779
Start / End Page
24 / 45
Related Subject Headings
- Nuclear & Particles Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
- 0105 Mathematical Physics
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Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., … Arnold, H. (2018). A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 779, 24–45. https://doi.org/10.1016/j.physletb.2018.01.042
Aaboud, M., G. Aad, B. Abbott, O. Abdinov, B. Abeloos, S. H. Abidi, O. S. AbouZeid, et al. “A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 779 (April 10, 2018): 24–45. https://doi.org/10.1016/j.physletb.2018.01.042.
Aaboud M, Aad G, Abbott B, Abdinov O, Abeloos B, Abidi SH, et al. A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 Apr 10;779:24–45.
Aaboud, M., et al. “A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 779, Apr. 2018, pp. 24–45. Scopus, doi:10.1016/j.physletb.2018.01.042.
Aaboud M, Aad G, Abbott B, Abdinov O, Abeloos B, Abidi SH, AbouZeid OS, Abraham NL, Abramowicz H, Abreu H, Abreu R, Abulaiti Y, Acharya BS, Adachi S, Adamczyk L, Adelman J, Adersberger M, Adye T, Affolder AA, Afik Y, Agheorghiesei C, Aguilar-Saavedra JA, Ahlen SP, Ahmadov F, Aielli G, Akatsuka S, Akerstedt H, Åkesson TPA, Akilli E, Akimov AV, Alberghi GL, Albert J, Albicocco P, Alconada Verzini MJ, Alderweireldt SC, Aleksa M, Aleksandrov IN, Alexa C, Alexander G, Alexopoulos T, Alhroob M, Ali B, Aliev M, Alimonti G, Alison J, Alkire SP, Allbrooke BMM, Allen BW, Allport PP, Aloisio A, Alonso A, Alonso F, Alpigiani C, Alshehri AA, Alstaty MI, Alvarez Gonzalez B, Álvarez Piqueras D, Alviggi MG, Amadio BT, Amaral Coutinho Y, Amelung C, Amidei D, Amor Dos Santos SP, Amoroso S, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders JK, Anderson KJ, Andreazza A, Andrei V, Angelidakis S, Angelozzi I, Angerami A, Anisenkov AV, Anjos N, Annovi A, Antel C, Antonelli M, Antonov A, Antrim DJ, Anulli F, Aoki M, Aperio Bella L, Arabidze G, Arai Y, Araque JP, Araujo Ferraz V, Arce ATH, Ardell RE, Arduh FA, Arguin JF, Argyropoulos S, Arik M, Armbruster AJ, Armitage LJ, Arnaez O, Arnold H. A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 Apr 10;779:24–45.
Published In
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOI
ISSN
0370-2693
Publication Date
April 10, 2018
Volume
779
Start / End Page
24 / 45
Related Subject Headings
- Nuclear & Particles Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
- 0105 Mathematical Physics