Physics potential for the measurement of sigma(H nu(nu)over-bar) x BR(H - GT mu(+) mu(-)) at the 1.4 TeV CLIC collider
2015
Аутори
Milutinović-Dumbelović, GordanaBožović-Jelisavčić, Ivanka
Grefe, C.
Kačarević, Goran
Lukić, Strahinja
Pandurović, Mila
Roloff, P.
Smiljanić, Ivan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The future compact linear collider (CLIC) offers a possibility for a rich precision physics programme, in particular in the Higgs sector through the energy staging. This is the first paper addressing the measurement of the standard model Higgs boson decay into two muons at 1.4 TeV CLIC. With respect to similar studies at future linear colliders, this paper includes several novel contributions to the statistical uncertainty of the measurement. The latter includes the equivalent photon approximation employed to describe e(+) e(-) and e gamma interactions whenever the virtuality of the mediated photon is smaller than 4 GeV and realistic forward electron tagging based on energy deposition maps in the forward calorimeters, as well as several processes with the Beam-strahlung photons that results in irreducible contribution to the signal. In addition, coincidence of the Bhabha scattering with the signal and background processes is considered, altering the signal selection efficiency. The stu...dy is performed using a fully simulated CLIC_ILD detector model. It is shown that the branching ratio for the Higgs decay into a pair of muons BR(H - GT mu(+) mu(-)) times the Higgs production cross-section in WW-fusion sigma(H nu(nu) over bar) can be measured with 38% statistical accuracy at root s = 1.4 TeV, assuming an integrated luminosity of 1.5 ab(-1) with unpolarised beams. If 80 % electron beam polarisation is considered, the statistical uncertainty of the measurement is reduced to 25 %. Systematic uncertainties are negligible in comparison to the statistical uncertainty.
Извор:
European Physical Journal C. Particles and Fields, 2015, 75, 11Финансирање / пројекти:
DOI: 10.1140/epjc/s10052-015-3742-9
ISSN: 1434-6044; 1434-6052
WoS: 000363979700001
Scopus: 2-s2.0-84945940829
Колекције
Институција/група
VinčaTY - JOUR AU - Milutinović-Dumbelović, Gordana AU - Božović-Jelisavčić, Ivanka AU - Grefe, C. AU - Kačarević, Goran AU - Lukić, Strahinja AU - Pandurović, Mila AU - Roloff, P. AU - Smiljanić, Ivan PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/795 AB - The future compact linear collider (CLIC) offers a possibility for a rich precision physics programme, in particular in the Higgs sector through the energy staging. This is the first paper addressing the measurement of the standard model Higgs boson decay into two muons at 1.4 TeV CLIC. With respect to similar studies at future linear colliders, this paper includes several novel contributions to the statistical uncertainty of the measurement. The latter includes the equivalent photon approximation employed to describe e(+) e(-) and e gamma interactions whenever the virtuality of the mediated photon is smaller than 4 GeV and realistic forward electron tagging based on energy deposition maps in the forward calorimeters, as well as several processes with the Beam-strahlung photons that results in irreducible contribution to the signal. In addition, coincidence of the Bhabha scattering with the signal and background processes is considered, altering the signal selection efficiency. The study is performed using a fully simulated CLIC_ILD detector model. It is shown that the branching ratio for the Higgs decay into a pair of muons BR(H - GT mu(+) mu(-)) times the Higgs production cross-section in WW-fusion sigma(H nu(nu) over bar) can be measured with 38% statistical accuracy at root s = 1.4 TeV, assuming an integrated luminosity of 1.5 ab(-1) with unpolarised beams. If 80 % electron beam polarisation is considered, the statistical uncertainty of the measurement is reduced to 25 %. Systematic uncertainties are negligible in comparison to the statistical uncertainty. T2 - European Physical Journal C. Particles and Fields T1 - Physics potential for the measurement of sigma(H nu(nu)over-bar) x BR(H - GT mu(+) mu(-)) at the 1.4 TeV CLIC collider VL - 75 IS - 11 DO - 10.1140/epjc/s10052-015-3742-9 ER -
@article{ author = "Milutinović-Dumbelović, Gordana and Božović-Jelisavčić, Ivanka and Grefe, C. and Kačarević, Goran and Lukić, Strahinja and Pandurović, Mila and Roloff, P. and Smiljanić, Ivan", year = "2015", abstract = "The future compact linear collider (CLIC) offers a possibility for a rich precision physics programme, in particular in the Higgs sector through the energy staging. This is the first paper addressing the measurement of the standard model Higgs boson decay into two muons at 1.4 TeV CLIC. With respect to similar studies at future linear colliders, this paper includes several novel contributions to the statistical uncertainty of the measurement. The latter includes the equivalent photon approximation employed to describe e(+) e(-) and e gamma interactions whenever the virtuality of the mediated photon is smaller than 4 GeV and realistic forward electron tagging based on energy deposition maps in the forward calorimeters, as well as several processes with the Beam-strahlung photons that results in irreducible contribution to the signal. In addition, coincidence of the Bhabha scattering with the signal and background processes is considered, altering the signal selection efficiency. The study is performed using a fully simulated CLIC_ILD detector model. It is shown that the branching ratio for the Higgs decay into a pair of muons BR(H - GT mu(+) mu(-)) times the Higgs production cross-section in WW-fusion sigma(H nu(nu) over bar) can be measured with 38% statistical accuracy at root s = 1.4 TeV, assuming an integrated luminosity of 1.5 ab(-1) with unpolarised beams. If 80 % electron beam polarisation is considered, the statistical uncertainty of the measurement is reduced to 25 %. Systematic uncertainties are negligible in comparison to the statistical uncertainty.", journal = "European Physical Journal C. Particles and Fields", title = "Physics potential for the measurement of sigma(H nu(nu)over-bar) x BR(H - GT mu(+) mu(-)) at the 1.4 TeV CLIC collider", volume = "75", number = "11", doi = "10.1140/epjc/s10052-015-3742-9" }
Milutinović-Dumbelović, G., Božović-Jelisavčić, I., Grefe, C., Kačarević, G., Lukić, S., Pandurović, M., Roloff, P.,& Smiljanić, I.. (2015). Physics potential for the measurement of sigma(H nu(nu)over-bar) x BR(H - GT mu(+) mu(-)) at the 1.4 TeV CLIC collider. in European Physical Journal C. Particles and Fields, 75(11). https://doi.org/10.1140/epjc/s10052-015-3742-9
Milutinović-Dumbelović G, Božović-Jelisavčić I, Grefe C, Kačarević G, Lukić S, Pandurović M, Roloff P, Smiljanić I. Physics potential for the measurement of sigma(H nu(nu)over-bar) x BR(H - GT mu(+) mu(-)) at the 1.4 TeV CLIC collider. in European Physical Journal C. Particles and Fields. 2015;75(11). doi:10.1140/epjc/s10052-015-3742-9 .
Milutinović-Dumbelović, Gordana, Božović-Jelisavčić, Ivanka, Grefe, C., Kačarević, Goran, Lukić, Strahinja, Pandurović, Mila, Roloff, P., Smiljanić, Ivan, "Physics potential for the measurement of sigma(H nu(nu)over-bar) x BR(H - GT mu(+) mu(-)) at the 1.4 TeV CLIC collider" in European Physical Journal C. Particles and Fields, 75, no. 11 (2015), https://doi.org/10.1140/epjc/s10052-015-3742-9 . .