Gas burner, gas hob and gas cooking appliance

Gas burner for a gas hob of a gas cooking appliance comprising a gas crown and a cap configured for covering the gas crown, wherein the crown comprises a gas distribution chamber confined by a circumferential wall which comprises a peripheral, slanted outer surface inclined between 20 and 70 degrees relative to the horizontal, and a plurality of gas outlet ports implemented in the circumferential wall as upwardly opened grooves passing through the circumferential wall, wherein a groove base has an inclination angle ranging from 10 to 30 degrees relative to the horizontal towards the gas distribution chamber and the gas outlet ports open into the slanted outer surface, wherein lower outer edges of the grooves define a groove perimeter corresponding to or being larger than the outer cap perimeter.