Search for Higgs boson pair production in the..WW * channel using pp collision data recorded at v s=13 TeV with the ATLAS detector

Abstract

Searches for non-resonant and resonant Higgs boson pair production are performed in the γγWW∗ channel with the final state of γγℓνjj using 36.1 fb−1 of proton–proton collision data recorded at a centre-of-mass energy of s√= 13 TeV by the ATLAS detector at the Large Hadron Collider. No significant deviation from the Standard Model prediction is observed. A 95% confidence-level observed upper limit of 7.7 pb is set on the cross section for non-resonant production, while the expected limit is 5.4 pb. A search for a narrow-width resonance X decaying to a pair of Standard Model Higgs bosons HH is performed with the same set of data, and the observed upper limits on σ(pp→X)×B(X→HH) range between 40.0 and 6.1 pb for masses of the resonance between 260 and 500 GeV, while the expected limits range between 17.6 and 4.4 pb. When deriving the limits above, the Standard Model branching ratios of the H→γγ and H→WW∗ are assumed.

Metadata

Item Type:	Article
Authors/Creators:	Aaboud, M Aad, G Abbott, B Abdinov, O Abeloos, B Abhayasinghe, DK Abidi, SH AbouZeid, OS https://orcid.org/0000-0003-1587-5830 Bachas, K Backes, M Bagnaia, P Bahmani, M Bahrasemani, H Bailey, AJ Baines, JT Bajic, M Bakalis, C Baker, OK https://orcid.org/0000-0002-1040-1241 https://orcid.org/0000-0001-6497-3619 Allport, PP Aloisio, A Alonso, A Alonso, F Alpigiani, C Alshehri, AA Alstaty, MI Gonzalez, BA Alvarez Piqueras, D Alviggi, MG Amadio, BT Amaral Coutinho, Y Ambroz, L Amelung, C Amidei, D Amor Dos Santos, SP Amoroso, S Amrouche, CS Anastopoulos, C Ancu, LS Andari, N Andeen, T Anders, CF Anders, JK Anderson, KJ Andreazza, A Andrei, V Anelli, CR Angelidakis, S Angelozzi, I Angerami, A Anisenkov, AV Annovi, A Antel, C Anthony, MT Antonelli, M Antrim, DJA Anulli, F Aoki, M Bella, LA Arabidze, G Arai, Y Araque, JP Araujo Ferraz, V (0000-0003-1587-5830) Araujo Pereira, R Arce, ATH Ardell, RE Arduh, FA Arguin, J-F Argyropoulos, S Armbruster, AJ Armitage, LJ Armstrong, A Arnaez, O Arnold, H Arratia, M Arslan, O Artamonov, A Artoni, G Artz, S Asai, S Asbah, N Ashkenazi, A Asimakopoulou, EM Asquith, L Assamagan, K Astalos, R Atkin, RJ Atkinson, M Atlay, NB Augsten, K Avolio, G Avramidou, R Axen, B Ayoub, MK Azuelos, G Baas, AE Baca, MJ Bachacou, H Bachas, K Backes, M Bagnaia, P Bahmani, M Bahrasemani, H Bailey, AJ Baines, JT Bajic, M Bakalis, C Baker, OK Bakker, PJ Gupta, DB Baldin, EM Balek, P Balli, F Balunas, WK Balz, J Banas, E Bandyopadhyay, A Banerjee, S Bannoura, AAE Barak, L Barbe, WM Barberio, EL Barberis, D Barbero, M Barillari, T Barisits, M-S Barkeloo, J Barklow, T Barlow, N Barnea, R Barnes, SL Barnett, BM Barnett, RM Barnovska-Blenessy, Z Baroncelli, A Barone, G Barr, AJ Barranco Navarro, L Barreiro, F Barreiro Guimaraes da Costa, J Bartoldus, R Barton, AE Bartos, P Basalaev, A Bassalat, A Bates, RL Batista, SJ Batlamous, S Batley, JR Battaglia, M Bauce, M Bauer, F Bauer, KT Bawa, HS Beacham, JB Beattie, MD Beau, T Beauchemin, PH Bechtle, P Beck, HC Beck, HP Becker, K Becker, M Becot, C Beddall, A Beddall, AJ Bednyakov, VA Bedognetti, M Bee, CP Beermann, TA Begalli, M Begel, M Behera, A Behr, JK Bell, AS Bella, G Bellagamba, L Bellerive, A Bellomo, M Bellos, P Belotskiy, K Belyaev, NL Benary, O Benchekroun, D Bender, M Benekos, N Benhammou, Y Noccioli, EB Benitez, J Benjamin, DP Benoit, M Bensinger, JR Bentvelsen, S Beresford, L Beretta, M Berge, D Kuutmann, EB Berger, N Bergsten, LJ Beringer, J Berlendis, S Bernard, NR Bernardi, G Bernius, C Bernlochner, FU Berry, T Berta, P Bertella, C Bertoli, G Bertram, IA Besjes, GJ Bylund, OB Bessner, M Besson, N Bethani, A Bethke, S Betti, A Bevan, AJ Beyer, J Bianchi, RM Biebel, O Biedermann, D Bielski, R Bierwagen, K Biesuz, NV Biglietti, M Billoud, TRV Bindi, M Bingul, A Bini, C Biondi, S Bisanz, T Biswal, JP Bittrich, C Bjergaard, DM Black, JE Black, KM Blair, RE Blazek, T Bloch, I Blocker, C Blue, A Blumenschein, U Blunier, D Bobbink, GJ Bobrovnikov, VS Bocchetta, SS Bocci, A Boerner, D Bogavac, D Bogdanchikov, AG Bohm, C Boisvert, V Bokan, P Bold, T Boldyrev, AS Bolz, AE Bomben, M Bona, M Bonilla, JS Boonekamp, M Borisov, A Borissov, G Bortfeldt, J Bortoletto, D Bortolotto, V Boscherini, D Bosman, M Bossio Sola, JD Bouaouda, K Boudreau, J Bouhova-Thacker, EV Boumediene, D Bourdarios, C Boutle, SK Boveia, A Boyd, J Boyko, IR Bozson, AJ Bracinik, J Brahimi, N Brandt, A Brandt, G Brandt, O Braren, F Bratzler, U Brau, B Brau, JE Madden, WDB Brendlinger, K Brennan, AJ Brenner, L Brenner, R Bressler, S Brickwedde, B Briglin, DL Britton, D Britzger, D Brock, I Brock, R Brooijmans, G Brooks, T Brooks, WK Brost, E Broughton, JH Bruckman de Renstrom, PA Bruncko, D Bruni, A Bruni, G Bruni, LS Bruno, S Brunt, BH Bruschi, M Bruscino, N Bryant, P Bryngemark, L Buanes, T Buat, Q Buchholz, P Buckley, AG Budagov, IA Bugge, MK Buehrer, F Bulekov, O Bullock, D Burch, TJ Burdin, S Burgard, CD Burger, AM Burghgrave, B Burka, K Burke, S Burmeister, I Burr, JTP Buescher, D Buescher, V Buschmann, E Bussey, P Butler, JM Buttar, CM Butterworth, JM Butti, P Buttinger, W Buzatu, A Buzykaev, AR Cabras, G Cabrera Urban, S Caforio, D Cai, H Cairo, VMM Cakir, O Calace, N Calafiura, P Calandri, A Calderini, G Calfayan, P Callea, G Caloba, LP Calvente Lopez, S Calvet, D Calvet, S Calvet, TP Calvetti, M Toro, RC Camarda, S Camarri, P Cameron, D Armadans, RC Camincher, C Campana, S Campanelli, M Camplani, A Campoverde, A Canale, V Bret, MC Cantero, J Cao, T Cao, Y Garrido, MDMC Caprini, I Caprini, M Capua, M Carbone, RM Cardarelli, R Cardillo, FC Carli, I Carli, T Carlino, G Carlson, BT Carminati, L Carney, RMD Caron, S Carquin, E Carra, S Carrillo-Montoya, GD Casadei, D Casado, MP Casha, AF Casolino, M Casper, DW Castelijn, R Castillo, FL Castillo Gimenez, V Castro, NF Catinaccio, A Catmore, JR Cattai, A Caudron, J Cavaliere, V Cavallaro, E Cavalli, D Cavalli-Sforza, M Cavasinni, V Celebi, E Ceradini, F Cerda Alberich, L Cerqueira, AS Cerri, A Cerrito, L Cerutti, F Cervelli, A Cetin, SA Chafaq, A Chakraborty, D Chan, SK Chan, WS Chan, YL Chang, P Chapman, JD Charlton, DG Chau, CC Barajas, CAC Che, S Chegwidden, A Chekanov, S Chekulaev, SV Chelkov, GA Chelstowska, MA Chen, C Chen, CH Chen, H Chen, J Chen, J Chen, S Chen, SJ Chen, X Chen, Y Chen, Y-H Cheng, HC Cheng, HJ Cheplakov, A Cheremushkina, E Cherkaoui El Moursli, R Cheu, E Cheung, K Chevalier, L Chiarella, V Chiarelli, G Chiodini, G Chisholm, AS Chitan, A Chiu, I (0000-0002-1040-1241) Wu, X Wu, Y Wyatt, TR Wynne, BM Xella, S Xi, Z Xia, L Xu, D Xu, H Xu, L Xu, T Xu, W Yabsley, B Yacoob, S Yajima, K Yallup, DP Yamaguchi, D Yamaguchi, Y Yamamoto, A Yamanaka, T Yamane, F Yamatani, M Yamazaki, T Yamazaki, Y Yan, Z Yang, HJ Yang, HT Yang, S Yang, Y Yang, Z Yao, W-M Yap, YC Yasu, Y Yatsenko, E Ye, J Ye, S Yeletskikh, I Yigitbasi, E Yildirim, E Yorita, K Yoshihara, K Young, CJS Young, C Yu, J Yu, J Yue, X Yuen, SPY Yusuff, I Zabinski, B Zacharis, G Zaffaroni, E Zaidan, R Zaitsev, AM Zakharchuk, N Zalieckas, J Zambito, S Zanzi, D Zaripovas, DR Zeiner, SV Zeitnitz, C Zemaityte, G Zeng, JC Zeng, Q Zenin, O Zerwas, D Zgubic, M Zhang, DF Zhang, D Zhang, F Zhang, G Zhang, H Zhang, J Zhang, L Zhang, L Zhang, M Zhang, P Zhang, R Zhang, R Zhang, X Zhang, Y Zhang, Z Zhao, P Zhao, X Zhao, Y Zhao, Z Zhemchugov, A Zhou, B Zhou, C Zhou, L Zhou, MS Zhou, M Zhou, N Zhou, Y Zhu, CG Zhu, HL Zhu, H Zhu, J Zhu, Y Zhuang, X Zhukov, K Zhulanov, V Zibell, A Zieminska, D Zimine, NI Zimmermann, S Zinonos, Z Zinser, M Ziolkowski, M Zobernig, G Zoccoli, A Zoch, K Zorbas, TG Zou, R ZurNedden, M Zwalinski, L Collaboration, ATLAS
Copyright, Publisher and Additional Information:	© CERN for the benefit of the ATLAS collaboration 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Dates:	Accepted: 14 November 2018 Published (online): 11 December 2018 Published: December 2018
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	11 Mar 2019 11:43
Last Modified:	11 Mar 2019 11:43
Published Version:	https://doi.org/10.1140/epjc/s10052-018-6457-x
Status:	Published
Publisher:	Springer Verlag (Germany)
Refereed:	Yes
Identification Number:	10.1140/epjc/s10052-018-6457-x
Related URLs:	Author
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:140800

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Search for Higgs boson pair production in the..WW * channel using pp collision data recorded at v s=13 TeV with the ATLAS detector

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