Study of Z Bosons Produced in Association with Charm in the Forward Region

LHCb collaboration; R.H. O'Neil

doi:10.1103/PhysRevLett.128.082001

Study of Z Bosons Produced in Association with Charm in the Forward Region

LHCb collaboration, R.H. O'Neil

School of Physics and Astronomy

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

Abstract / Description of output

Events containing a 𝑍 boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6 fb−1 collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a 𝑍 boson and a jet, the fraction of charm jets is determined in intervals of 𝑍-boson rapidity in the range 2.0<𝑦⁡(𝑍)<4.5. A sizable enhancement is observed in the forwardmost 𝑦⁡(𝑍) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.

Original language	English
Article number	082001
Pages (from-to)	1-12
Number of pages	12
Journal	Physical Review Letters
Volume	128
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.128.082001
Publication status	Published - 24 Feb 2022

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10.1103/PhysRevLett.128.082001Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2109.08084

3 Finished
4 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/04/23 → 30/09/25
Project: Research
Next generation photodetectors for future applications
Oliva, F.
1/12/22 → 30/11/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/10/22 → 30/09/25
Project: Research

Cite this

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title = "Study of Z Bosons Produced in Association with Charm in the Forward Region",

abstract = "Events containing a 𝑍 boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6 fb−1 collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a 𝑍 boson and a jet, the fraction of charm jets is determined in intervals of 𝑍-boson rapidity in the range 2.0<𝑦⁡(𝑍)<4.5. A sizable enhancement is observed in the forwardmost 𝑦⁡(𝑍) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.",

author = "{LHCb collaboration} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, {Lais Soares} and Oliva Federica and Gediminas Sarpis and R.H. O'Neil",

year = "2022",

month = feb,

day = "24",

doi = "10.1103/PhysRevLett.128.082001",

language = "English",

volume = "128",

pages = "1--12",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Study of Z Bosons Produced in Association with Charm in the Forward Region

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Federica, Oliva

AU - Sarpis, Gediminas

AU - O'Neil, R.H.

PY - 2022/2/24

Y1 - 2022/2/24

N2 - Events containing a 𝑍 boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6 fb−1 collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a 𝑍 boson and a jet, the fraction of charm jets is determined in intervals of 𝑍-boson rapidity in the range 2.0<𝑦⁡(𝑍)<4.5. A sizable enhancement is observed in the forwardmost 𝑦⁡(𝑍) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.

AB - Events containing a 𝑍 boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6 fb−1 collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a 𝑍 boson and a jet, the fraction of charm jets is determined in intervals of 𝑍-boson rapidity in the range 2.0<𝑦⁡(𝑍)<4.5. A sizable enhancement is observed in the forwardmost 𝑦⁡(𝑍) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.

U2 - 10.1103/PhysRevLett.128.082001

DO - 10.1103/PhysRevLett.128.082001

M3 - Article

SN - 0031-9007

VL - 128

SP - 1

EP - 12

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 082001

ER -

Study of Z Bosons Produced in Association with Charm in the Forward Region

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Projects

Experimental Particle Physics at the University of Edinburgh

Next generation photodetectors for future applications

Experimental Particle Physics at the University of Edinburgh

Cite this