Search for light long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector

ATLAS Collaboration

doi:10.1103/PhysRevLett.133.161803

Search for light long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector

ATLAS Collaboration

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Abstract

A search for long-lived particles (LLPs) using 140 fb⁻¹of 𝑝⁢𝑝 collision data with √𝑠 = 13 TeV recorded by the ATLAS experiment at the LHC is presented. The search targets LLPs with masses between 5 and 55 GeV that decay hadronically in the ATLAS inner detector. Benchmark models with LLP pair production from exotic decays of the Higgs boson and models featuring long-lived axionlike particles (ALPs) are considered. No significant excess above the expected background is observed. Upper limits are placed on the branching ratio of the Higgs boson to pairs of LLPs, the cross section for ALPs produced in association with a vector boson, and, for the first time, on the branching ratio of the top quark to an ALP and a 𝑢/𝑐 quark.

Original language	English
Article number	161803
Pages (from-to)	161803-1-161803-24
Number of pages	24
Journal	Physical Review Letters
Volume	133
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.133.161803
Publication status	Published - 18 Oct 2024
Externally published	Yes

Bibliographical note

Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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10.1103/PhysRevLett.133.161803Licence: CC BY

Publisher version (open access)Final published version, 1.51 MBLicence: CC BY

Cite this

@article{009d10f0a61e4355a624a895cea0f722,

title = "Search for light long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector",

abstract = "A search for long-lived particles (LLPs) using 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 = 13 TeV recorded by the ATLAS experiment at the LHC is presented. The search targets LLPs with masses between 5 and 55 GeV that decay hadronically in the ATLAS inner detector. Benchmark models with LLP pair production from exotic decays of the Higgs boson and models featuring long-lived axionlike particles (ALPs) are considered. No significant excess above the expected background is observed. Upper limits are placed on the branching ratio of the Higgs boson to pairs of LLPs, the cross section for ALPs produced in association with a vector boson, and, for the first time, on the branching ratio of the top quark to an ALP and a 𝑢/𝑐 quark.",

author = "\{ATLAS Collaboration\} and G. Aad and E. Aakvaag and B. Abbott and S. Abdelhameed and K. Abeling and Abicht, \{N. J.\} and Abidi, \{S. H.\} and M. Aboelela and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and A. Ackermann and Bourdarios, \{C. Adam\} and L. Adamczyk and Addepalli, \{S. V.\} and Addison, \{M. J.\} and J. Adelman and A. Adiguzel and T. Adye and Affolder, \{A. A.\} and Y. Afik and Agaras, \{M. N.\} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and Ahmed, \{W. S.\} and S. Ahuja and X. Ai and G. Aielli and A. Aikot and \{Ait Tamlihat\}, M. and B. Aitbenchikh and M. Akbiyik and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and D. Akiyama and Akolkar, \{N. N.\} and S. Aktas and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and Albouy, \{G. L.\} and S. Alderweireldt and Alegria, \{Z. L.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and T. Alexopoulos and F. Alfonsi and M. Algren and M. Alhroob and B. Ali and Ali, \{H. M.J.\} and S. Ali and Alibocus, \{S. W.\} and M. Aliev and G. Alimonti and W. Alkakhi and C. Allaire and Allbrooke, \{B. M.M.\} and Allen, \{J. F.\} and \{Allendes Flores\}, \{C. A.\} and Allport, \{P. P.\} and A. Aloisio and F. Alonso and C. Alpigiani and Alsolami, \{Z. M.K.\} and \{Alvarez Estevez\}, M. and \{Alvarez Fernandez\}, A. and \{Alves Cardoso\}, M. and Alviggi, \{M. G.\} and M. Aly and \{Amaral Coutinho\}, Y. and A. Ambler and C. Amelung and M. Amerl and Ames, \{C. G.\} and D. Amidei and Amirie, \{K. J.\} and \{Dos Santos\}, \{S. P.Amor\} and Amos, \{K. R.\} and S. An and V. Ananiev and C. Anastopoulos and T. Andeen and Anders, \{J. K.\} and Anderson, \{A. C.\} and Andrean, \{S. Y.\} and A. Andreazza and S. Angelidakis and A. Angerami and Anisenkov, \{A. V.\} and A. Annovi and C. Antel and E. Antipov and M. Antonelli and F. Anulli and M. Aoki and T. Aoki and Aparo, \{M. A.\} and \{Aperio Bella\}, L. and C. Appelt and A. Apyan and \{Arbiol Val\}, \{S. J.\} and C. Arcangeletti and Arce, \{A. T.H.\} and E. Arena and Arguin, \{J. F.\} and S. Argyropoulos and Arling, \{J. H.\} and O. Arnaez and H. Arnold and G. Artoni and H. Asada and K. Asai and S. Asai and Asbah, \{N. A.\} and \{Ashby Pickering\}, \{R. A.\} and K. Assamagan and R. Astalos and Astrand, \{K. S.V.\} and S. Atashi and Atkin, \{R. J.\} and M. Atkinson and H. Atmani and Atmasiddha, \{P. A.\} and K. Augsten and S. Auricchio and Auriol, \{A. D.\} and Austrup, \{V. A.\} and G. Avolio and K. Axiotis and G. Azuelos and D. Babal and H. Bachacou and K. Bachas and A. Bachiu and F. Backman and A. Badea and Baer, \{T. M.\} and P. Bagnaia and M. Bahmani and D. Bahner and K. Bai and Baines, \{J. T.\} and L. Baines and Baker, \{O. K.\} and E. Bakos and \{Bakshi Gupta\}, D. and \{Balabram Filho\}, \{L. E.\} and V. Balakrishnan and R. Balasubramanian and Baldin, \{E. M.\} and P. Balek and E. Ballabene and F. Balli and Baltes, \{L. M.\} and Balunas, \{W. K.\} and J. Balz and I. Bamwidhi and E. Banas and M. Bandieramonte and A. Bandyopadhyay and S. Bansal and L. Barak and M. Barakat and Barberio, \{E. L.\} and D. Barberis and M. Barbero and Barel, \{M. Z.\} and Barends, \{K. N.\} and T. Barillari and Barisits, \{M. S.\} and T. Barklow and P. Baron and \{Baron Moreno\}, \{D. A.\} and A. Baroncelli and G. Barone and Barr, \{A. J.\} and Barr, \{J. D.\} and F. Barreiro and \{da Costa\}, \{J. Barreiro Guimar{\~a}es\} and U. Barron and \{Barros Teixeira\}, \{M. G.\} and S. Barsov and F. Bartels and R. Bartoldus and Barton, \{A. E.\} and P. Bartos and A. Basan and M. Baselga and A. Bassalat and Basso, \{M. J.\} and S. Bataju and R. Bate and Bates, \{R. L.\} and S. Batlamous and B. Batool and M. Battaglia and D. Battulga and M. Bauce and M. Bauer and P. Bauer and \{Bazzano Hurrell\}, \{L. T.\} and Beacham, \{J. B.\} and T. Beau and Beaucamp, \{J. Y.\} and Beauchemin, \{P. H.\} and P. Bechtle and Beck, \{H. P.\} and K. Becker and Beddall, \{A. J.\} and Bednyakov, \{V. A.\} and Bee, \{C. P.\} and Beemster, \{L. J.\} and Beermann, \{T. A.\} and M. Begalli and M. Begel and A. Behera and Behr, \{J. K.\} and Beirer, \{J. F.\} and F. Beisiegel and M. Belfkir and G. Bella and L. Bellagamba and A. Bellerive and P. Bellos and K. Beloborodov and D. Benchekroun and F. Bendebba and Y. Benhammou and Benkendorfer, \{K. C.\} and L. Beresford and M. Beretta and \{Bergeaas Kuutmann\}, E. and N. Berger and B. Bergmann and J. Beringer and G. Bernardi and C. Bernius and Bernlochner, \{F. U.\} and F. Bernon and \{Berrocal Guardia\}, A. and T. Berry and J. Shojaii",

note = "Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2024",

month = oct,

day = "18",

doi = "10.1103/PhysRevLett.133.161803",

language = "English",

volume = "133",

pages = "161803--1--161803--24",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "16",

}

TY - JOUR

T1 - Search for light long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Aakvaag, E.

AU - Abbott, B.

AU - Abdelhameed, S.

AU - Abeling, K.

AU - Abicht, N. J.

AU - Abidi, S. H.

AU - Aboelela, M.

AU - Aboulhorma, A.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Ackermann, A.

AU - Bourdarios, C. Adam

AU - Adamczyk, L.

AU - Addepalli, S. V.

AU - Addison, M. J.

AU - Adelman, J.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agaras, M. N.

AU - Agarwala, J.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Ahmad, A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ahuja, S.

AU - Ai, X.

AU - Aielli, G.

AU - Aikot, A.

AU - Ait Tamlihat, M.

AU - Aitbenchikh, B.

AU - Akbiyik, M.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Akiyama, D.

AU - Akolkar, N. N.

AU - Aktas, S.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Albouy, G. L.

AU - Alderweireldt, S.

AU - Alegria, Z. L.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexopoulos, T.

AU - Alfonsi, F.

AU - Algren, M.

AU - Alhroob, M.

AU - Ali, B.

AU - Ali, H. M.J.

AU - Ali, S.

AU - Alibocus, S. W.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alkakhi, W.

AU - Allaire, C.

AU - Allbrooke, B. M.M.

AU - Allen, J. F.

AU - Allendes Flores, C. A.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, F.

AU - Alpigiani, C.

AU - Alsolami, Z. M.K.

AU - Alvarez Estevez, M.

AU - Alvarez Fernandez, A.

AU - Alves Cardoso, M.

AU - Alviggi, M. G.

AU - Aly, M.

AU - Amaral Coutinho, Y.

AU - Ambler, A.

AU - Amelung, C.

AU - Amerl, M.

AU - Ames, C. G.

AU - Amidei, D.

AU - Amirie, K. J.

AU - Dos Santos, S. P.Amor

AU - Amos, K. R.

AU - An, S.

AU - Ananiev, V.

AU - Anastopoulos, C.

AU - Andeen, T.

AU - Anders, J. K.

AU - Anderson, A. C.

AU - Andrean, S. Y.

AU - Andreazza, A.

AU - Angelidakis, S.

AU - Angerami, A.

AU - Anisenkov, A. V.

AU - Annovi, A.

AU - Antel, C.

AU - Antipov, E.

AU - Antonelli, M.

AU - Anulli, F.

AU - Aoki, M.

AU - Aoki, T.

AU - Aparo, M. A.

AU - Aperio Bella, L.

AU - Appelt, C.

AU - Apyan, A.

AU - Arbiol Val, S. J.

AU - Arcangeletti, C.

AU - Arce, A. T.H.

AU - Arena, E.

AU - Arguin, J. F.

AU - Argyropoulos, S.

AU - Arling, J. H.

AU - Arnaez, O.

AU - Arnold, H.

AU - Artoni, G.

AU - Asada, H.

AU - Asai, K.

AU - Asai, S.

AU - Asbah, N. A.

AU - Ashby Pickering, R. A.

AU - Assamagan, K.

AU - Astalos, R.

AU - Astrand, K. S.V.

AU - Atashi, S.

AU - Atkin, R. J.

AU - Atkinson, M.

AU - Atmani, H.

AU - Atmasiddha, P. A.

AU - Augsten, K.

AU - Auricchio, S.

AU - Auriol, A. D.

AU - Austrup, V. A.

AU - Avolio, G.

AU - Axiotis, K.

AU - Azuelos, G.

AU - Babal, D.

AU - Bachacou, H.

AU - Bachas, K.

AU - Bachiu, A.

AU - Backman, F.

AU - Badea, A.

AU - Baer, T. M.

AU - Bagnaia, P.

AU - Bahmani, M.

AU - Bahner, D.

AU - Bai, K.

AU - Baines, J. T.

AU - Baines, L.

AU - Baker, O. K.

AU - Bakos, E.

AU - Bakshi Gupta, D.

AU - Balabram Filho, L. E.

AU - Balakrishnan, V.

AU - Balasubramanian, R.

AU - Baldin, E. M.

AU - Balek, P.

AU - Ballabene, E.

AU - Balli, F.

AU - Baltes, L. M.

AU - Balunas, W. K.

AU - Balz, J.

AU - Bamwidhi, I.

AU - Banas, E.

AU - Bandieramonte, M.

AU - Bandyopadhyay, A.

AU - Bansal, S.

AU - Barak, L.

AU - Barakat, M.

AU - Barberio, E. L.

AU - Barberis, D.

AU - Barbero, M.

AU - Barel, M. Z.

AU - Barends, K. N.

AU - Barillari, T.

AU - Barisits, M. S.

AU - Barklow, T.

AU - Baron, P.

AU - Baron Moreno, D. A.

AU - Baroncelli, A.

AU - Barone, G.

AU - Barr, A. J.

AU - Barr, J. D.

AU - Barreiro, F.

AU - da Costa, J. Barreiro Guimarães

AU - Barron, U.

AU - Barros Teixeira, M. G.

AU - Barsov, S.

AU - Bartels, F.

AU - Bartoldus, R.

AU - Barton, A. E.

AU - Bartos, P.

AU - Basan, A.

AU - Baselga, M.

AU - Bassalat, A.

AU - Basso, M. J.

AU - Bataju, S.

AU - Bate, R.

AU - Bates, R. L.

AU - Batlamous, S.

AU - Batool, B.

AU - Battaglia, M.

AU - Battulga, D.

AU - Bauce, M.

AU - Bauer, M.

AU - Bauer, P.

AU - Bazzano Hurrell, L. T.

AU - Beacham, J. B.

AU - Beau, T.

AU - Beaucamp, J. Y.

AU - Beauchemin, P. H.

AU - Bechtle, P.

AU - Beck, H. P.

AU - Becker, K.

AU - Beddall, A. J.

AU - Bednyakov, V. A.

AU - Bee, C. P.

AU - Beemster, L. J.

AU - Beermann, T. A.

AU - Begalli, M.

AU - Begel, M.

AU - Behera, A.

AU - Behr, J. K.

AU - Beirer, J. F.

AU - Beisiegel, F.

AU - Belfkir, M.

AU - Bella, G.

AU - Bellagamba, L.

AU - Bellerive, A.

AU - Bellos, P.

AU - Beloborodov, K.

AU - Benchekroun, D.

AU - Bendebba, F.

AU - Benhammou, Y.

AU - Benkendorfer, K. C.

AU - Beresford, L.

AU - Beretta, M.

AU - Bergeaas Kuutmann, E.

AU - Berger, N.

AU - Bergmann, B.

AU - Beringer, J.

AU - Bernardi, G.

AU - Bernius, C.

AU - Bernlochner, F. U.

AU - Bernon, F.

AU - Berrocal Guardia, A.

AU - Berry, T.

AU - Shojaii, J.

N1 - Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2024/10/18

Y1 - 2024/10/18

N2 - A search for long-lived particles (LLPs) using 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 = 13 TeV recorded by the ATLAS experiment at the LHC is presented. The search targets LLPs with masses between 5 and 55 GeV that decay hadronically in the ATLAS inner detector. Benchmark models with LLP pair production from exotic decays of the Higgs boson and models featuring long-lived axionlike particles (ALPs) are considered. No significant excess above the expected background is observed. Upper limits are placed on the branching ratio of the Higgs boson to pairs of LLPs, the cross section for ALPs produced in association with a vector boson, and, for the first time, on the branching ratio of the top quark to an ALP and a 𝑢/𝑐 quark.

AB - A search for long-lived particles (LLPs) using 140 fb−1 of 𝑝⁢𝑝 collision data with √𝑠 = 13 TeV recorded by the ATLAS experiment at the LHC is presented. The search targets LLPs with masses between 5 and 55 GeV that decay hadronically in the ATLAS inner detector. Benchmark models with LLP pair production from exotic decays of the Higgs boson and models featuring long-lived axionlike particles (ALPs) are considered. No significant excess above the expected background is observed. Upper limits are placed on the branching ratio of the Higgs boson to pairs of LLPs, the cross section for ALPs produced in association with a vector boson, and, for the first time, on the branching ratio of the top quark to an ALP and a 𝑢/𝑐 quark.

UR - https://www.scopus.com/pages/publications/85195166241

U2 - 10.1103/PhysRevLett.133.161803

DO - 10.1103/PhysRevLett.133.161803

M3 - Article

C2 - 39485965

AN - SCOPUS:85195166241

SN - 0031-9007

VL - 133

SP - 161803-1-161803-24

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 161803

ER -

Search for light long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector

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