Measurement of 𝑡-channel single-top-quark production in 𝑝𝑝 collisions at √𝑠 = 5.02 TeV with the ATLAS detector

The ATLAS Collaboration

doi:10.1016/j.physletb.2024.138726

Measurement of 𝑡-channel single-top-quark production in 𝑝𝑝 collisions at √𝑠 = 5.02 TeV with the ATLAS detector

The ATLAS Collaboration

Research output: Contribution to journal › Letter › peer-review

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Abstract

The observation of the electroweak production of single-top-quarks is made using 255 pb⁻¹ of proton-proton collision data recorded at √s = 5.02 TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single-top-quark candidates arising from t-channel production with the top quark decaying semi-leptonically. Events passing the selection are then used to measure the inclusive cross-section for the combined production of single-top-quarks and antiquarks, σ(tq+t¯q), and the ratio R_t between these two. They are measured to be σ(tq+t¯q)=27.1_−4.1 ^+4.4(stat.)_−3.7 ^+4.4(syst.) pb and R_t=2.73_−0.82 ^+1.43(stat.)_−0.29 ^+1.01(syst.). The individual single-top-quark (tq) and single-top-antiquark (t¯q) production cross-sections are measured to be σ(tq)=19.8_−3.1 ^+3.9(stat.)_−2.2 ^+2.9(syst.) pb and σ(t¯q)=7.3_−2.1 ^+3.2(stat.)_−1.5 ^+2.8(syst.) pb. All measurements are in good agreement with the Standard Model predictions.

Original language	English
Article number	138726
Pages (from-to)	1-22
Number of pages	22
Journal	Physics Letters B
Volume	854
DOIs	https://doi.org/10.1016/j.physletb.2024.138726
Publication status	Published - Jul 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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Publisher version (open access)Final published version, 3.21 MBLicence: CC BY

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@article{515937ee2c1444a08cc458bbe5965aa5,

title = "Measurement of 𝑡-channel single-top-quark production in 𝑝𝑝 collisions at √𝑠 = 5.02 TeV with the ATLAS detector",

abstract = "The observation of the electroweak production of single-top-quarks is made using 255 pb−1 of proton-proton collision data recorded at √s = 5.02 TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single-top-quark candidates arising from t-channel production with the top quark decaying semi-leptonically. Events passing the selection are then used to measure the inclusive cross-section for the combined production of single-top-quarks and antiquarks, σ(tq+t¯q), and the ratio Rt between these two. They are measured to be σ(tq+t¯q)=27.1−4.1 +4.4(stat.)−3.7 +4.4(syst.) pb and Rt=2.73−0.82 +1.43(stat.)−0.29 +1.01(syst.). The individual single-top-quark (tq) and single-top-antiquark (t¯q) production cross-sections are measured to be σ(tq)=19.8−3.1 +3.9(stat.)−2.2 +2.9(syst.) pb and σ(t¯q)=7.3−2.1 +3.2(stat.)−1.5 +2.8(syst.) pb. All measurements are in good agreement with the Standard Model predictions.",

author = "\{The ATLAS Collaboration\} and G. Aad and B. Abbott and K. Abeling and Abicht, \{N. J.\} and Abidi, \{S. H.\} and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and \{Adam Bourdarios\}, C. and L. Adamczyk and L. Adamek 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 I. Aizenberg and M. Akbiyik and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and D. Akiyama and Akolkar, \{N. N.\} and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and Albouy, \{G. L.\} and S. Alderweireldt 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 \{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 \{Amor Dos Santos\}, \{S. P.\} and Amos, \{K. R.\} and V. Ananiev and C. Anastopoulos and T. Andeen and Anders, \{J. K.\} and Andrean, \{S. Y.\} and A. Andreazza and S. Angelidakis and A. Angerami and Anisenkov, \{A. V.\} and A. Annovi and C. Antel and Anthony, \{M. T.\} and E. Antipov and M. Antonelli and F. Anulli and M. Aoki and T. Aoki and \{Aparisi Pozo\}, \{J. A.\} and Aparo, \{M. A.\} and \{Aperio Bella\}, L. and C. Appelt and A. Apyan and N. Aranzabal 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 K. Assamagan and R. Astalos 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 P. Bagnaia and M. Bahmani and Bailey, \{A. J.\} and Bailey, \{V. R.\} and Baines, \{J. T.\} and L. Baines and C. Bakalis and Baker, \{O. K.\} and E. Bakos and \{Bakshi Gupta\}, D. 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 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 \{Barranco Navarro\}, L. and F. Barreiro and \{Barreiro Guimar{\~a}es da Costa\}, J. 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 Basson, \{C. R.\} and Bates, \{R. L.\} and S. Batlamous and Batley, \{J. R.\} 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 Beauchemin, \{P. H.\} and F. Becherer 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 M. Benoit and Bensinger, \{J. R.\} and S. Bentvelsen 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 T. Berry and P. Berta and A. Berthold and Bertram, \{I. A.\} and S. Bethke and A. Betti and Bevan, \{A. J.\} and M. Bhamjee and S. Bhatta 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 = jul,

doi = "10.1016/j.physletb.2024.138726",

language = "English",

volume = "854",

pages = "1--22",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

TY - JOUR

T1 - Measurement of 𝑡-channel single-top-quark production in 𝑝𝑝 collisions at √𝑠 = 5.02 TeV with the ATLAS detector

AU - The ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abeling, K.

AU - Abicht, N. J.

AU - Abidi, S. H.

AU - Aboulhorma, A.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adam Bourdarios, C.

AU - Adamczyk, L.

AU - Adamek, 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 - Aizenberg, I.

AU - Akbiyik, M.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Akiyama, D.

AU - Akolkar, N. N.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Albouy, G. L.

AU - Alderweireldt, S.

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 - 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 - Amor Dos Santos, S. P.

AU - Amos, K. R.

AU - Ananiev, V.

AU - Anastopoulos, C.

AU - Andeen, T.

AU - Anders, J. K.

AU - Andrean, S. Y.

AU - Andreazza, A.

AU - Angelidakis, S.

AU - Angerami, A.

AU - Anisenkov, A. V.

AU - Annovi, A.

AU - Antel, C.

AU - Anthony, M. T.

AU - Antipov, E.

AU - Antonelli, M.

AU - Anulli, F.

AU - Aoki, M.

AU - Aoki, T.

AU - Aparisi Pozo, J. A.

AU - Aparo, M. A.

AU - Aperio Bella, L.

AU - Appelt, C.

AU - Apyan, A.

AU - Aranzabal, N.

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 - Assamagan, K.

AU - Astalos, R.

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 - Bagnaia, P.

AU - Bahmani, M.

AU - Bailey, A. J.

AU - Bailey, V. R.

AU - Baines, J. T.

AU - Baines, L.

AU - Bakalis, C.

AU - Baker, O. K.

AU - Bakos, E.

AU - Bakshi Gupta, D.

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 - 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 - Barranco Navarro, L.

AU - Barreiro, F.

AU - Barreiro Guimarães da Costa, J.

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 - Basson, C. R.

AU - Bates, R. L.

AU - Batlamous, S.

AU - Batley, J. R.

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 - Beauchemin, P. H.

AU - Becherer, F.

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 - Benoit, M.

AU - Bensinger, J. R.

AU - Bentvelsen, S.

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 - Berry, T.

AU - Berta, P.

AU - Berthold, A.

AU - Bertram, I. A.

AU - Bethke, S.

AU - Betti, A.

AU - Bevan, A. J.

AU - Bhamjee, M.

AU - Bhatta, S.

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 - 2024/7

Y1 - 2024/7

N2 - The observation of the electroweak production of single-top-quarks is made using 255 pb−1 of proton-proton collision data recorded at √s = 5.02 TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single-top-quark candidates arising from t-channel production with the top quark decaying semi-leptonically. Events passing the selection are then used to measure the inclusive cross-section for the combined production of single-top-quarks and antiquarks, σ(tq+t¯q), and the ratio Rt between these two. They are measured to be σ(tq+t¯q)=27.1−4.1 +4.4(stat.)−3.7 +4.4(syst.) pb and Rt=2.73−0.82 +1.43(stat.)−0.29 +1.01(syst.). The individual single-top-quark (tq) and single-top-antiquark (t¯q) production cross-sections are measured to be σ(tq)=19.8−3.1 +3.9(stat.)−2.2 +2.9(syst.) pb and σ(t¯q)=7.3−2.1 +3.2(stat.)−1.5 +2.8(syst.) pb. All measurements are in good agreement with the Standard Model predictions.

AB - The observation of the electroweak production of single-top-quarks is made using 255 pb−1 of proton-proton collision data recorded at √s = 5.02 TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single-top-quark candidates arising from t-channel production with the top quark decaying semi-leptonically. Events passing the selection are then used to measure the inclusive cross-section for the combined production of single-top-quarks and antiquarks, σ(tq+t¯q), and the ratio Rt between these two. They are measured to be σ(tq+t¯q)=27.1−4.1 +4.4(stat.)−3.7 +4.4(syst.) pb and Rt=2.73−0.82 +1.43(stat.)−0.29 +1.01(syst.). The individual single-top-quark (tq) and single-top-antiquark (t¯q) production cross-sections are measured to be σ(tq)=19.8−3.1 +3.9(stat.)−2.2 +2.9(syst.) pb and σ(t¯q)=7.3−2.1 +3.2(stat.)−1.5 +2.8(syst.) pb. All measurements are in good agreement with the Standard Model predictions.

UR - https://www.scopus.com/pages/publications/85194176733

U2 - 10.1016/j.physletb.2024.138726

DO - 10.1016/j.physletb.2024.138726

M3 - Letter

AN - SCOPUS:85194176733

SN - 0370-2693

VL - 854

SP - 1

EP - 22

JO - Physics Letters B

JF - Physics Letters B

M1 - 138726

ER -

Measurement of 𝑡-channel single-top-quark production in 𝑝𝑝 collisions at √𝑠 = 5.02 TeV with the ATLAS detector

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