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Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector.

Publication ,  Journal Article
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, NJ; Abidi, SH; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abulaiti, Y ...
Published in: Physical review letters
December 2025

A search for the dimuon decay of the Higgs boson is presented based on pp collision data recorded by ATLAS during Run 3 of the Large Hadron Collider, corresponding to an integrated luminosity of 165  fb^{-1} at sqrt[s]=13.6  TeV. To enhance the sensitivity, the results are combined with those from Run 2. An excess of events over the background is observed with a significance of 3.4σ (2.5σ expected). The best-fit signal strength is μ=1.4±0.4. This result provides evidence for the H→μμ decay with ATLAS data and offers a direct probe of the Higgs-boson Yukawa coupling to second-generation fermions.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

December 2025

Volume

135

Issue

23

Start / End Page

231802

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. J., … Coadou, Y. (2025). Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector. Physical Review Letters, 135(23), 231802. https://doi.org/10.1103/gzdh-p159
Aad, G., E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, et al. “Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector.Physical Review Letters 135, no. 23 (December 2025): 231802. https://doi.org/10.1103/gzdh-p159.
Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, et al. Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector. Physical review letters. 2025 Dec;135(23):231802.
Aad, G., et al. “Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector.Physical Review Letters, vol. 135, no. 23, Dec. 2025, p. 231802. Epmc, doi:10.1103/gzdh-p159.
Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, Abidi SH, Aboelela M, Aboulhorma A, Abramowicz H, Abulaiti Y, Acharya BS, Ackermann A, Adam Bourdarios C, Adamczyk L, Addepalli SV, Addison MJ, Adelman J, Adiguzel A, Adye T, Affolder AA, Afik Y, Agaras MN, Aggarwal A, Agheorghiesei C, Ahmadov F, Ahuja S, Ai X, Aielli G, Aikot A, Ait Tamlihat M, Aitbenchikh B, Akbiyik M, Åkesson TPA, Akimov AV, Akiyama D, Akolkar NN, Aktas S, Alberghi GL, Albert J, Alberti U, Albicocco P, Albouy GL, Alderweireldt S, Alegria ZL, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi F, Algren M, Alhroob M, Ali B, Ali HMJ, Ali S, Alibocus SW, Aliev M, Alimonti G, Alkakhi W, Allaire C, Allbrooke BMM, Allen JS, Allen JF, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alsolami ZMK, Alvarez Fernandez A, Alves Cardoso M, Alviggi MG, Aly M, Amaral Coutinho Y, Ambler A, Amelung C, Amerl M, Ames CG, Amezza T, Amidei D, Amini B, Amirie K, Amirkhanov A, Amor Dos Santos SP, Amos KR, Amperiadou D, An 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Barbero M, Barel MZ, Barillari T, Barisits M-S, Barklow T, Baron P, Baron Moreno DA, Baroncelli A, Barr AJ, Barr JD, Barreiro F, Barreiro Guimarães da Costa J, Barros Teixeira MG, Barsov S, Bartels F, Bartoldus R, Barton AE, Bartos P, Baselga M, Bashiri S, Bassalat A, Basso MJ, Bataju S, Bate R, Bates RL, Batlamous S, Battaglia M, Battulga D, Bauce M, Bauer M, Bauer P, Bayer LT, Bazzano Hurrell LT, Beacham JB, Beau T, Beaucamp JY, Beauchemin PH, Bechtle P, Beck HP, Becker K, Beddall AJ, Bednyakov VA, Bee CP, Beemster LJ, Begalli M, Begel M, Behr JK, Beirer JF, Beisiegel F, Belfkir M, Bella G, Bellagamba L, Bellerive A, Bellgraph CD, Bellos P, Beloborodov K, Benaoumeur I, Benchekroun D, Bendebba F, Benhammou Y, Benkendorfer KC, Beresford L, Beretta M, Bergeaas Kuutmann E, Berger N, Bergmann B, Beringer J, Bernardi G, Bernius C, Bernlochner FU, Berrocal Guardia A, Berry T, Berta P, Berthold A, Berti A, Bertrand R, Bethke S, Betti A, Bevan AJ, Bezio L, Bhalla NK, Bharthuar S, Bhatta S, 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Bulekov O, Bullard BA, Burdin S, Burgard CD, Burger AM, Burghgrave B, Burlayenko O, Burleson J, Burzynski JC, Busch EL, Büscher V, Bussey PJ, Butler JM, Buttar CM, Butterworth JM, Buttinger W, Buxo Vazquez CJ, Buzykaev AR, Cabrera Urbán S, Cadamuro L, Cai H, Cai Y, Cairo VMM, Cakir O, Calace N, Calafiura P, Calderini G, Calfayan P, Calic L, Callea G, Caloba LP, Calvet D, Calvet S, Camacho Toro R, Camarda S, Camarero Munoz D, Camarri P, Camincher C, Campanelli M, Camplani A, Canale V, Canbay AC, Canonero E, Cantero J, Cao Y, Capocasa F, Capua M, Carbone A, Cardarelli R, Cardenas JCJ, Cardiff MP, Carducci G, Carli T, Carlino G, Carlotto JI, Carlson BT, Carlson EM, Carmignani J, Carminati L, Carnelli A, Carnesale M, Caron S, Carquin E, Carr IB, Carrá S, Carratta G, Carrion Martinez C, Carroll AM, Casado MP, Casolaro P, Caspar M, Castiglioni WR, Castillo FL, Castillo Garcia L, Castillo Gimenez V, Castro NF, Catinaccio A, Catmore JR, Cavaliere T, Cavaliere V, Caviedes Betancourt LJ, Celebi 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Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector. Physical review letters. 2025 Dec;135(23):231802.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

December 2025

Volume

135

Issue

23

Start / End Page

231802

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences