IceCube can constrain the intrinsic charm of the proton [IC at IC: IceCube can constrain the intrinsic charm of the proton]

Laha, Ranjan; Brodsky, Stanley J.

doi:10.1103/PhysRevD.96.123002

IceCube can constrain the intrinsic charm of the proton [IC at IC: IceCube can constrain the intrinsic charm of the proton]

Journal Article · Tue Dec 05 00:00:00 EST 2017 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.96.123002· OSTI ID:1417662

Laha, Ranjan ^[1]; Brodsky, Stanley J. ^[2]

Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

Here, the discovery of extraterrestrial neutrinos in the ~30 TeV–PeV energy range by IceCube provides new constraints on high energy astrophysics. An important background to the signal are the prompt neutrinos which originate from the decay of charm hadrons produced by high energy cosmic-ray particles interacting in the Earth’s atmosphere. It is conventional to use the calculations of charm hadroproduction using gluon splitting g → c¯c alone. However, QCD predicts an additional “intrinsic" component of the heavy quark distribution which arises from diagrams where heavy quarks are multiply connected to the proton’s valence quarks. We estimate the prompt neutrino spectrum due to intrinsic charm. We find that the atmospheric prompt neutrino flux from intrinsic charm is comparable to those calculated using QCD computations not including intrinsic charm, once we normalize the intrinsic charm differential cross sections to the ISR and the LEBC-MPS collaboration data. In the future, IceCube will constrain the intrinsic charm content of the proton and will contribute to one of the major questions in high energy physics phenomenology.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1417662

Alternate ID(s):: OSTI ID: 1411275

Journal Information:: Physical Review D, Journal Name: Physical Review D Journal Issue: 12 Vol. 96; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Prompt neutrino fluxes in the atmosphere with PROSA parton distribution functions Garzelli, M. V.; Moch, S.; Zenaiev, O. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2017-03330	text	January 2017
A new Method for Finding Point Sources in High-Energy Neutrino data Fang, Ke; Miller, M. Coleman The Astrophysical Journal, Vol. 826, Issue 2 https://doi.org/10.3847/0004-637X/826/2/102	journal	July 2016
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High-Energy Neutrinos from Recent Blazar Flares Halzen, Francis; Kheirandish, Ali The Astrophysical Journal, Vol. 831, Issue 1 https://doi.org/10.3847/0004-637X/831/1/12	journal	October 2016
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A generalized self-veto probability for atmospheric neutrinos Gaisser, Thomas K.; Jero, Kyle; Karle, Albrecht arXiv https://doi.org/10.48550/arxiv.1405.0525	text	January 2014
Galaxy Mergers as a Source of Cosmic Rays, Neutrinos, and Gamma Rays Kashiyama, Kazumi; Mészáros, Peter arXiv https://doi.org/10.48550/arxiv.1405.3262	text	January 2014
Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data Aartsen, M. G.; Ackermann, M.; Adams, J. arXiv https://doi.org/10.48550/arxiv.1405.5303	text	January 2014
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Hidden Cosmic-Ray Accelerators as an Origin of TeV-PeV Cosmic Neutrinos Murase, Kohta; Guetta, Dafne; Ahlers, Markus arXiv https://doi.org/10.48550/arxiv.1509.00805	text	January 2015
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Dark Matter Decay to a Photon and a Neutrino: the Double Monochromatic Smoking Gun Scenario Aisati, Chaïmae El; Gustafsson, Michael; Hambye, Thomas arXiv https://doi.org/10.48550/arxiv.1510.05008	text	January 2015
Choked Jets and Low-Luminosity Gamma-Ray Bursts as Hidden Neutrino Sources Senno, Nicholas; Murase, Kohta; Meszaros, Peter arXiv https://doi.org/10.48550/arxiv.1512.08513	text	January 2015
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A New Method for Finding Point Sources in High-energy Neutrino Data Fang, Ke; Miller, M. Coleman arXiv https://doi.org/10.48550/arxiv.1603.09306	text	January 2016
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Early Decay of Peccei-Quinn Fermion and the IceCube Neutrino Events Ema, Yohei; Moroi, Takeo arXiv https://doi.org/10.48550/arxiv.1606.04186	text	January 2016
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Probing Very High Energy Prompt Muon and Neutrino fluxes and the cosmic ray knee via Underground Muons Gandhi, Raj; Panda, Sukanta arXiv https://doi.org/10.48550/arxiv.hep-ph/0512179	text	January 2005
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Intrinsic charm contribution to the prompt atmospheric neutrino flux Giannini, A. V.; Gonçalves, V. P.; Navarra, F. S. Physical Review D, Vol. 98, Issue 1 https://doi.org/10.1103/physrevd.98.014012	journal	July 2018
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