Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV
Abstract The inclusive b b ¯ $$ b\overline{b} $$ - and...
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2021
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dmit-1721.1-1320942021-09-21T03:34:12Z Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV Aaij, R. Abellán Beteta, C. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Aidala, C. A Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. Alfonso Albero, A. Aliouche, Z. Abstract The inclusive b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet production cross-sections in the forward region of pp collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV in 2016. The data sample corresponds to an integrated luminosity of 1.6 fb−1. Differential cross-sections are measured as a function of the transverse momentum and of the pseudorapidity of the leading jet, of the rapidity difference between the jets, and of the dijet invariant mass. A fiducial region for the measurement is defined by requiring that the two jets originating from the two b or c quarks are emitted with transverse momentum greater than 20 GeV/c, pseudorapidity in the range 2.2 < η < 4.2, and with a difference in the azimuthal angle between the two jets greater than 1.5. The integrated b b ¯ $$ b\overline{b} $$ -dijet cross-section is measured to be 53.0 ± 9.7 nb, and the total c c ¯ $$ c\overline{c} $$ -dijet cross-section is measured to be 73 ± 16 nb. The ratio between c c ¯ $$ c\overline{c} $$ - and b b ¯ $$ b\overline{b} $$ -dijet cross-sections is also measured and found to be 1.37 ± 0.27. The results are in agreement with theoretical predictions at next-to-leading order. 2021-09-20T17:41:55Z 2021-09-20T17:41:55Z 2021-02-02 2021-04-04T03:42:04Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132094 Journal of High Energy Physics. 2021 Feb 02;2021(2):23 PUBLISHER_CC en https://doi.org/10.1007/JHEP02(2021)023 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
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English |
| description |
Abstract
The inclusive
b
b
¯
$$ b\overline{b} $$
- and
c
c
¯
$$ c\overline{c} $$
-dijet production cross-sections in the forward region of pp collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV in 2016. The data sample corresponds to an integrated luminosity of 1.6 fb−1. Differential cross-sections are measured as a function of the transverse momentum and of the pseudorapidity of the leading jet, of the rapidity difference between the jets, and of the dijet invariant mass. A fiducial region for the measurement is defined by requiring that the two jets originating from the two b or c quarks are emitted with transverse momentum greater than 20 GeV/c, pseudorapidity in the range 2.2 < η < 4.2, and with a difference in the azimuthal angle between the two jets greater than 1.5. The integrated
b
b
¯
$$ b\overline{b} $$
-dijet cross-section is measured to be 53.0 ± 9.7 nb, and the total
c
c
¯
$$ c\overline{c} $$
-dijet cross-section is measured to be 73 ± 16 nb. The ratio between
c
c
¯
$$ c\overline{c} $$
- and
b
b
¯
$$ b\overline{b} $$
-dijet cross-sections is also measured and found to be 1.37 ± 0.27. The results are in agreement with theoretical predictions at next-to-leading order. |
| format |
Article |
| author |
Aaij, R. Abellán Beteta, C. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Aidala, C. A Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. Alfonso Albero, A. Aliouche, Z. |
| spellingShingle |
Aaij, R. Abellán Beteta, C. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Aidala, C. A Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. Alfonso Albero, A. Aliouche, Z. Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| author_facet |
Aaij, R. Abellán Beteta, C. Ackernley, T. Adeva, B. Adinolfi, M. Afsharnia, H. Aidala, C. A Aiola, S. Ajaltouni, Z. Akar, S. Albrecht, J. Alessio, F. Alexander, M. Alfonso Albero, A. Aliouche, Z. |
| author_sort |
Aaij, R. |
| title |
Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_short |
Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full |
Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_fullStr |
Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full_unstemmed |
Measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_sort |
measurement of differential b b ¯ $$ b\overline{b} $$ - and c c ¯ $$ c\overline{c} $$ -dijet cross-sections in the forward region of pp collisions at s $$ \sqrt{s} $$ = 13 tev |
| publisher |
Springer Berlin Heidelberg |
| publishDate |
2021 |
| url |
https://hdl.handle.net/1721.1/132094 |
| work_keys_str_mv |
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| _version_ |
1737717226336681984 |